906 mopar heads cc. ), AND A SET OF 906 HEADS ALSO.
- 906 mopar heads cc None of those heads had hardened valve seats. Per 440 source the new heads have about 84 cc`s and they are closed with a quench surface. Does somebody knows how many cc. Locked; WTB WTB Pair of "906" Heads (2843906) October 1968 or earlier Date code. I had about 1,200 IIRC into a fully ported and blueprinted set of 906's. Opens in a new window or tab. Hello guys and gals! I’ve been slowly putting together a 350 Small block Chevy. But with slightly larger combustion chambers at 84 cc. 440source Stealth head review and flow numbers I was shocked to see the pathetic numbers he got out of those heads. Pre-Owned. Although the 915 of 1967, and 906 of 1968 to 1970, had the same ports, the new 346 was a significant departure in terms of intake port The "cast date" numbers you posted do not correspond to any date code format that I have seen. 346 or 906 heads. Thread I thought the only difference between stock uncut 906 and 452 heads were the valve seats in the 452 were for unleaded fuel 383 steel crank and when I cc'd the heads on the 4 corners and they came in at 87. Same reason why they killed off the big blocks. the indy's are very nice heads too. Next Last. 5. Used in my Charger while it was still my daily driver. 010 @ 64cc. The 516 old heads were the worst of all. You can't find much worse big block heads. With stock 906 heads at around 90CCs, mine were 91, and pistons in the hole a couple thousands, a 516 head - 1964-1967 close chambered head used on all big blocks except the 1967 440, different style ports than the 915/906 head, 2. 5 cc) of the earlier 1964-66 Breathing wise unported, the 1967 440 HP 915 head intake port and the 906 are comparable. I tried to buy the 440 source aluminum heads bare but they won't sell them that way. You have to be careful on Mopar head numbers 2406516 produced 1964-1967 closed chamber 73. Forums. Put the head gasket on the head and used it as a template to un-shroud the valves. Is it 79cc or what, for 906's. Avenue weren’t telling was that the standard 440, the 383 2V, and all passenger car big-blocks had the same 906 heads with the same valves Mopar Technical Forums. Have one to sell? Sell now. Essentially, the intake port configurations can be distilled down to two basic ports: the early intake port, found in the 1967 915 open-chamber casting and the 1968-70 906 closed-chamber casting I am looking for higher compression, and i have 906 heads. Location is approximate. 10 degree locks and retainers 1. 0 out of 5 stars. See more Mopar 1968 Rebuilt 906 Heads Ready to Go Dodge Share. 14 X 1. The most common muscle-car-era casting is the 906, but you'll also see 346, 902 There are two basic intakeport designs in the later big block heads. 5 CC's. Making The Most Of 906 Heads TYPICAL chamber CC on untouched heads is 90cc . We have a great online selection at the lowest prices with Fast & Free shipping on many items! Mopar 440 Heads 906 for sale | eBay In this series we take a look at the big block 906 head, brief rundown on its features and years in productionthen a flow test for the as cast numbers. Heads still on engine. ), AND A SET OF 906 HEADS ALSO. times! Solid lift cam. 452 heads cc's. #2843906 Cylinder Heads typically left the factory with the Chambers at 88. Big Block A body Tech . 5cc. 020 mopar head gasket for your calculations? For each . Thread For hp/$, if your 906 heads are in good shape, you'll be ahead by changing the intake manifold only. 010 @ 59. Contact Us - But if it were me I would want to take advantage of the cubes and run a better head then the factory heads. I have a set of ported 906 heads kicking around the garage. Mopar heads vary alot so you must cc a couple of chambers in each head. The EQ castings are much nicer and cleaner than the GM906's, although a virtual clone of the 906. Posts: 310 all you would do is lose 906 heads/stock valves Ok, this isn't exactly a new question but what's the best anyone has run with a stock set of 906's, maybe some porting but with stock size valves. 14 and 1. they are both open chambers heads , the 906 casting isn't as screwed up in regards It would be more expensive, but if you go with aluminum heads such as MP stage 6, or Indy SR, they have 75 cc chambers and that would bring the CR to 9. One in the 906&915 heads, and the heads starting from the 346 all have the same port design. These heads outperform the 180CC dart platinum's on the track, despite being considered a 170CC vs. 2844906 produced 1968-1970 open chamber 79. While a set of ported, cast iron “906” cylinder heads might have been the pinnacle of piston-topping performance circa 1990, the proliferation of aftermarket aluminum heads over the last thirty years has turned most factory pieces into hefty paperweights. Severy, KS. Basically looks like its between Edelbrock, 440 Source, and CPPA (Toth Performance). #11 dodge69hemi said: I have a 11:1 compression 451 stroker (400) with the 516's stock heads they are 73. Or if I would be better off building the 516's over the 915's. The port volume increases from 160 to 165 with a 1. 010 milled off @ 71cc, 1990 302 heads milled . It doesn't hurt the factory iron heads to have them machined for 2. I believe these cylinder heads came on some early 1968 383 two-barrel engines. My 516's have 76 CC chambers, ported, and 2. Can someone confirm? So my question is, how do both stack up against the 346 heads on my I am going to purchase AL heads and I want to increase my compression ratio . Double check to make sure that they have 'not' been milled before. 902 heads opinion. Whith small valves. 84/1. With the quality of aluminum heads out there now it makes little sense to run ported iron heads. The amount of fluid that was used from the burette indicates the volume of the chamber. 6 and 89 on the other. For another $400, you can get Edelbrocks though. 906 heads. 88 int valve due to the back side of the valve head having less tulip to it. I would like to go . 4. 1. Thanks for your help! Heads are milled . T. 035"}, the CC level should be around 80 CC's. Posted By: sixpakdodge Re: porting 906 heads - 10/17/09 01:53 AM. 5 cc's not 78 like most believe, and my motor made 453 hp on Muscle Mopar artical on 906 heads. P. 015 in the hole on the drivers side , Here's my 2-cents: - The only important difference between 915's and 906's is the combustion chamber size (ports identical or extremely close) - Closed chamber heads are pretty common & the "non-915's" can be turned into "915's" by using the larger exhaust valve (I've done this) - Quench is better with 915's - DEFINITELY no pistons sticking above the block or they'll The cylinder head cc data that is in the Mopar "bibles" is basically the NHRA "legal" minimum spec. Valve Size on 906 casting heads Vintage MOPAR chat : Moparchat - Home of MOPAR enthusiasts worldwide! > Technical Forums > Vintage MOPAR casting # cc of heads: Taz: Performance Talk: 5: 03-09-2001 03:36 PM: All times are GMT -4. The article provided no info on the 516, but certainly raises questions about the much revered 906. 5 cc. Saves a lot of $ compared to going with alu heads, not sure why the guy is asking $3K for a set of heads? Sounds like too much imo. 1:1 with factory shim gaskets , like i sed before , their a great street heads ,915 will run alittle hotter on the street, and a open chamber with shot of nos is even better . 100". 20 in the 1/4 with a 1. it would be worth it to have them CNC ported if you had a 69 R/T or Dart GTS or something the RPM's and Stealth are great for medium builds. 63 60ft. Then you can figure the compression ratio, and adjust things. If you machine the heads, any intake should fit from there on but before you machine anything, do a mockup to see how things fit. 906 Heads, what cc? What cc are 906 heads? Hybridized: 03-05-2002 03:54 PM: I've cc a set and it was around 92-93 cc. My question is I just shaved the heads . Warehouse. 75 in. Link To eBay Motors. 2268341 – 1962-1967, 318 LA-series small-block, 1. Sponsored. 906 vs 452 heads on 440. Jump to Latest 2. Has any one looked at/compared the port shape of the 915 to the Stealth? I believe the Stealth has the 2. Today we are looking at the differences between a set of stock casting Mopar heads from different engines and comparing them to a set of brand new 440 Source. CUDALOCO, I got the standard straight did not know about MW's till Mopar Nats but I did get them bran-new inthe box with valves for under 1400 off the internet mopar alley classifieds. If the block has been milled straight, get the correct piston for the CR you want. Message. The engine is a stock 383 with 30 over flat tops and 906 heads. 56 valves. Inactive User : Join Date: Oct 2001 Originally posted by HOLESHOT These heads are usually around 88ccs. 040 over with TRW 2388 flat tops. 915 is 1967 only, which makes them a bit rarer than your average RB head. as cast the 906 flows better than the 452 , but the 452 doesn't have the short turn like the 915/906 ,which makes it easier for the backyard head porter not screw them up. They are now Max Wedge port size and closed chambered. 09@119. I'm looking for about 2,700 weight. 906 heads . I want something big enough to give me a lopey idle, but also something that will remain streetable (6 pack, and 440 should help plenty there). Guess that's called networking to us old guys. I believe they flowed about the same. the head that suceeded the 915 was the 906 and all the heads there after were open chamber heads. 906's were the best open chambers. Member : Join Date: Mar 2000 Would the 906 heads offer any advantages over the 915's? #2 07-15-2000, 01:46 AM Brian_wo . $255. 932". 2951250 Cylinder Head Casting Number. How much can you cut? Boy thats a loaded question as the deack height etc adds variables. I don't mind the 213 heads, they were very similar to the other big block heads in terms of performance, but had the modified cooling passages. I'm going to pull the heads and look for a set of 906 heads. Like I said, I am not absolutely sure the 902 head is the one I am talking about, but someone will jump in if I am wrong. It does flow more in the mid lift area,where the valve spends most of its time. he said he knows these mopar 440s and The old Mopar Muscle magazine did some porting of the common BB heads, around the year 2000 I believe. The Intake Ports have a 'flat floor' on the runner side. 1 I want to increase my Compression with the new AL heads Question If I order a set of heads with a 78 cc camber will this increase Classic Mopar Tech. The main advantage to the 915 is it's closed chamber and better porting than all earlier heads except for the Max Wedge. Heads milled . the real issue isn't the need for a higher flowing head but the cross ram intake that doesn't flow a lot of air. They have had new seats put in and then were not finished so they will need machining. Seems to me that the intake port on the stock 906 head is around 220 CFM at . in my old newport(R. with them. Has anybody built a 440 using 915 heads that runs on 93 octane pump gas? I'am talking about a streetable engine (less than 6000 rpm). I like the Indy Actually, it's better to machine the heads for the intake. 180 CC intake runner. As you will notice From 1968 and on the volume of For a Mopar big-block, the 1967-only 915 heads are the most desirable. x2 I did a 440 with 906 heads. I ran a set over 100,000 mi. Serno heads will bowl port them to flow close to stock B-1's. 08 intake 1. The "F" castings were the best and the "C" castings were the next best of all the 906 castings. The 915's were available at least in '66 -67, maybe '65 and some early '68. are combustion chambers on the stock 452s heads ? In my '66 300 convertible, I'm running 516 heads and a Comp Cams 21-222-4 hydraulic flat-tappet cam. The 906 heads were used on the 1970 383 engine which had better flow characteristics than the 516 heads used on the 1966 383. I understand from research that the 516 heads and the 67 only 915 heads are the only closed chamber heads that were produced. Compare that to 215-220 CFM from even the best factory production heads such as 906's or even 915's! Larger 2. Sometimes you just gamble and install OOTB RPM and Stealth heads for $1,620 and $1,000 - - - Updated - - - I hear the 906 heads are prone to cracking. LA Small-Block Mopar Cylinder Head Casting Numbers. 95 cc and finely 4006452 produced 1976-1978 open chamber 81. Price out what you could get for selling the 915 & 906 heads, and what would the price of new Edelbrocks be. 78cc(closed) to typically 88cc(open) You heard wrong on the valves 906 has 2. These heads are the part number 5090, E Street heads. as for air flow, a 906 F with some port work and the mopar SST valves will flow 255 CFM @25" test pressure. Dual springs for a solid 282s comp cam. 81 stainless Manley valves. The comp ratio is about 8. 74 valves with about 90cc chambers. 14 If the engine is a '70, it wil have 906 heads, which are open chamber design, and upwards of 88-90ccs. I've looked at some of the piston offerings and don't see a piston right off that would give you around 9. 60 exh. I see in past post claims that it is never what Chrysler documented. 08 intake and 1. 60exhaust on 383 and non hp applications but steps up to a 1. qkcuda FABO Gold Member The flow characteristics are totally different than the 915 and 906 heads and if you know how to port, they can work good. The aluminum 440 source heads look like a great deal. comp ratio. Will have look for it. What cc are 906 heads and what would be a guestimate on the compression of this engine. 74 exhaust valve on 440 hp applications. 2780915 produced 1967 closed chamber head 73. Showing the flow of a 906 440mopar head that has been cnc ported. I wouldn't want to stick a whole lot of money in a set. 45 to 10. 500" lift. 74 for the 906 heads. 030 to raise compression a bit, but it still ran fine on regular unleaded 87 octane. 2465315 – What would the compression be in a 383 using L2315 . i think the torkers are for all out race. 3462346 produced 1971-1973, open chamber, 79. l. They were good for compresstion but the small valves really didn`t flow well. the intake will be a choke point for good high flowing heads. A lot of good information posted about aluminum heads from savvy folks, but I'm tending toward keeping to the Mopar components for an original look. We had one exhaust port crack and we knew we had screwed that one up. Generally on our bench the 906 has a slight edge, 3-5 cfm at various lifts but not all lifts. casting number 2406516-10. If you do the intake, it will become a part just for those heads. 4006452 Cylinder Head Casting Number. 81" valve sizes also come standard. I've got the Mopar Muscle mag articles on the flow tests they did on various BB heads;very interesting reading,but almost overwhelming in information. Listen, we port 906 heads but we are in Idaho. I think they'll do ME just fine. I've personally cc'd and documented 1971 915 heads with . 1 of 3 Go to page. Jul 24, 2024. Picture 1 of 6. 17 posts · Joined 2020 Add to quote; Only show this user #1 · Oct 15, 2021. 69MOPR: 03-05-2002 03:58 PM: Check 'em. com. 60-inch exhaust valve, which had been fitted in standard engines, was discontinued. 020. Together they have worked on most common and uncommon heads. That's where I ran I have a 440 engine: with 10:1 pistons, 906 heads with 9:14 intake and 1:81 exhaust, 530 lift cam, the pistons are cast, I'm hoping for 520 horsepower, I'm using a 750 Demon carburetor, MSD distributor, 4:88 gears. more times than not people will steer you towards an aftermarket aluminum head. No comparison was made to the pre 66 heads in the article, but it was mentioned that the runners in the 915 were a step forward from the earlier heads, and the 906 was pretty much the same head, but with the open chamber added for emissions reasons. You can put 1. Mopar Muscle took their "cheap-build" 400 and put Edlebrock heads on it and gained over 70HP on regular unleaded over 92 octane Rocket In our flow bench testing the 906 flowed better than the 452 or 346 (That were about equal) by a significant margin. 08" Intake / 1. One thing to add to your list that I just learned while working on a 1968 383, is that before the 906 came out, they used 250 heads on early 1968 engines. I don't know what cc the 516 are, both heads have 2. Moderate/mild cam, split profile MP cam that would probably be considered an RV cam. 88 Manley Stainless steel valves in them car went from best of 11. Gallery. )is that the closed chamber is going to give you more compression. We are talking about using a mild cam around . The early 60`s up to 67 had a closed chamber head. "stone stock" they are pretty much the same and variables in casting might give one or the other a slight edge at any time. All the 68&up heads and the 915 heads are good factory heads. 035", but what is the Combustion Chamber CC volume. 78 as far as your wife goes she will learn with time had my 70 Challenger for 29 years and the wife for 27 years remember speed cost it Car season is coming, so let any Mopar guys know what you have. Know nothing about the. factory machining isn't always perfect. Inactive User : Join Date: Jan 2000. 3:1 static CR considering the 78cc chamber volume of the 915's. Any year 906 head will bolt up on a 65 big block motor. It is a quick comparison of port sizes between t The only difference between the closed(915)and the open(906,452etc. I do have one set but I am saving those for a 383. A engine with a bore size at 4" or under will burn cleaner,same as the open chamber head. 067 gets you in the ballpark with about . Good luck and have fun with yours! A Body Classic Mopar Forum; C Body Classic Mopar Forum; E Body Classic Mopar Forum; F, M & J Body Classic Mopar Forum heads just need to flow enough for the set up. jelsr: 03-05-2002 04:29 PM: Find many great new & used options and get the best deals for Mopar 1968 Rebuilt 906 Heads Ready to Go Dodge Plymouth CHRYSLER 440 383 at the best online prices at eBay! Free shipping for many products! I would like to increase my compression 1 point I have read where guy's have milled there 906 heads . Check out Mopar Muscle on line in thier Tech Articles - they have three great articles The 975 cylinder heads were used on all 440 engines in 1975. They are very limited but similar to the Mopar Technical Forums. 060 and I'm wondering what cc these heads are now. The original 68/69 Magnum/Roadrunner high performance 383 pistons had a compression distance(CD) of 1. Haven't pulled the covers on the 413;may find a set of the "decent" heads with at least a 1. compaired to 1. Thread starter 72demon440; Start date May 2, 2012 - 72demon440 Well-Known Member. I accumulated several hundred cylinder heads for testing for our Stock Eliminator engines. or Best Offer. 030 L 2293, they are a high dome forged piston, i googled that number and cam up with a trw piston 22cc dome, anyone have any Read the tech article on a Mopar Max Wedge Cylinder Heads Guide, brought to you by the experts at Mopar Muscle Magazine. on pretty much any BB Mopar head. This Starting with factory 906 castings, Muscle Motors completely cleans and inspects Stock 906 heads had 89 cc chambers. I stayed with the iron to be more street friendly at my 5200 ft elevation. Mopar Mechanical Parts For Sale . . 74" exhasut valve. Get the best deals for Mopar 440 Heads 906 at eBay. 00 shipping. The 516's will work but are the doorstops of the big block heads. )with 87 octane u. gig_supply_co (169) 100% positive; Seller's other items Seller's other items; The heads that I have on the engine now are 516 heads. They probably all flow very similar so I don't think there would be a big power difference between all 3 cylinder heads, not for what I'm using them for anyway. Hi I am at the early stages of doing some head work to the 72 440 in my 70 RR. Need to find out cc,s to work with my 13;1 forged pop up's. 030 pistons and a set of 906 heads with a thick gasket. 100 and shaved a 1 second of there 1/4 mile times. WHAT ARE 906 HEADS? The 906 head was an open chamber head with If you have the heads with the extra coolant hole, just be sure to use the right gasket. I recently got a nice clean set of 906 heads from ebay and want to go through them before I begin milling etc. I. I have stacks of bb heads of all numbers, they are at the point of scrap value now. 509" lift cams. Garden & Outdoor. I needed to find out the volume of the combustion chambers so I can make a better piston sele OK Thanks meep meep, I just got the rest of the motor apart, looks like the heads need repair, it has a cam in it that says on the end CC 305H10 and P2434 I think it is a comp cam 525 lift 305 duration, and on top of the pistons it says . 915 flow numbers. It has 906 heads, comp ratio is about 8. The Hemi was an offering with huge ports that could benefit greatly from aggressive modifications . 906's are open chamber with 1. 010 @ 64ccView attachment 137678 Yes, Steve in a 1999 Mopar muscle issue flow tested all the big block heads and the 906 and 915 flow nearly the same in terms of Intake numbers. 74" valves in the 516 heads and nearly equal the flow of the 906's. 915 Heads On 383. The factory 2. Find many great new & used options and get the best deals for Mopar 1967 440hp 915 Cylinder Heads at the best online prices at eBay! Free shipping for many products! I picked up a 73 440 . Joined I use to run 906 heads with the 2. These heads have outstanding features that include premium one-piece, stainless steel, high flow 2. FYI, un-milled 906 heads are about 88 CC. Thread Tools: Display Modes #1 04-08-2002, 09:28 PM your 213 heads will flow more when ported than the 906 heads. I think 906 heads originaly have a 79. I ran a best of 12. Every 906 head that I've checked (many), no factory heads were ever over 90cc From what I have seen, the 915's will increase the compression almost a full The '906' heads were the standard head casting for all RB and B engines from 68-72(ish). Slightly ported heads. Thread Tools: Display Modes #1 03-05-2002, 03:44 PM RadCuda. 915's were basically a one year item for 1967, in 1968 heads were changed to 906 open chamber to meet emmissions. 02 j heads I have tested flow 228cfm intake and 142-147cfm exh. 6 and 88 on one head and 87. Closed Chamber Big Block Heads 516 they are probably the best closed chamber heads chrysler ever made. there's been times when I've milled heads and the intake actually fit better than before. Free local pickup. 65 engines used closed chamber heads & I think you'd have a pretty large compression drop by adding 906 (open chamber) heads IF you are keeping the stock bottom end of the motor (I think 65 pistons set pretty far down in the cylinder). Thread Tools: Display Modes #1 07-15-2000, 01:10 AM SubLime440. 1 watched in the last 24 hours. The compression ratios you are reading in a book are what they are supposed to be I have never seen a set of untouched heads that cc out to number that Chrysler listed, most have to be milled a good amount to get to the real purpose for the 906 heads is if you are doing a perfect resto for 68,69,70 B or RB chrysler put them on all the big blocks those three years. The inner spring has inside diameter of . To get a good baseline and make sure I know what I have, I want to cc the heads. 2. Real compression is about the same as the earlier ones. I believe hello, i have a chance on some heads, yeh they preetty scrap value stateside but not much happening here in uk, these worth the effort? my engine a 66 <65 casting> 440,ali inlet, shumacker headers,holley 750 carb. matching parts makes more power!exhaust is last and needs to flow enough for the whole set up. Click here to search for Mopar cars and parts for sale. Parts Only. Wondered if the 516's were any better than the 906's. 6! Porting, all new valves, seats, and milling iron heads gets expensive maybe $1000 or more depending on porting. complete Set of 906 Heads including-CCA-911 Ventilfedern-7° new locks-613 HD federteller-ventilschaftdichtungen-2,08_ edelstahl einlass ventile-1,74_ edelstahl auslass ventile-gehärtete bleifrei Auslassventilsitze für die Verwendung von bleifreiem Benzin -the 906/915 heads are basically the same with the exception of the 915 being closed chamber. Mopar Technical Forums. Engine, Transmission & Driveline . The owner wants to put Edelbrock RPM heads on it and I'm not sure what cc to get. For I am looking for a set of aluminum cylinder heads to replace the 906 heads I have on my 383. P Click here to search for Mopar cars and parts for sale. 60" exhaust valve. 915 has 2. 81 intake and exhaust valves. You must be smarter than the cylinder heads you are working with. The alum heads would require reducing the combustion chamber cc's to make the best ratiosmilling the heads is no big deal, just needs to be done the right amount, and pick the correct cam (intake valve closing angle). Lots of the Mopar shops offer this package for around $700-$800. 915 heads are basically the same as 906 heads, except for the closed chamber. As a general guide, stock chambers on the 340/360 heads are in the range of 63 to 75 cc. 906 heads came on 383-440 engines from 1968-1970. Didn't want to go too far! After C Body Mopar Tech Forums. The 906vs 516 was in reference to the 906's I've got now. That is much larger as high as 88cc My issue is that I built this engine with stock flat top pistons. The reason why Mopar went to the open style was for emission purposes. My build is mild, 284/484 Mopar perf cam, comp valve springs,stock valves, weiand intake , 650 edlbrock carb, stock crank,pistons,rods. I have worked on some of this stuff back about ten years ago. Inactive User : Join Date: Mar 2002. Can anyone give me some technical info on mopar 346 heads for a 440. We will probably put some indy heads on that. Engine, Trans & Driveline . LarryClark Discussion starter. 060, what are my CC now? I have a 73 440 with . hello, the 906 F head will out flow the 452 easily. $450. As Gary said 2. The big difference between them is the port shape , the flame hardened casting on the exh seat is just a nice to have . There were 2 versions of 915, one with the small 1. Also known as the 452 heads, they were used on all Chrysler 440 engines from 1976-1978. The Cylinder Heads on the 1966 '383' were {Casting #2406516}, which have valves sizes of 2. when selecting a conduscive piston "compression distance" height for your desired Compression Ratio WITH the Cam events to be used. dont get talked into a bunch of high rpm range stuff,keep your operational range At the time the 915 heads were appropriate for the cam profiles , compression ratios , weight and gearing of daily driven cars . 4, and magnum heads shave . 516 head question. 080 and of course mill the intake side also I was going to buy 440 Source heads and have them milled but my buddy told me I can have the iron heads milled for about $200--cheap, Have them checked for Originally posted by dirty dan UNKNOWN CONDITION 1960'S ERA 383 (WITH UNKNOWN HEADS. Just like everything else Mopar-related, Hughes Engines figured out how to make If I'm not all wrong, the 250 heads originally came mainly in some '68 2 bbl 383's. Search the threads for 906 or 915 head for good info. 004 th cut from the head you loose 1 cc. I'm not very familiar with Mopar engines but the basics. 1. Visually it's just like the '906' heads, so they should be OK performers. Neither head has an advantage over the other as a 10:1 915 head and a 10:1 906 head will require a differently designed engine to accomplish the same compression ratio. This is part 2 of the Edelbrock Aluminum heads series. Combustion chamber is a "closed chamber" design, with quench area built in, so the benefits I brought the heads to work, I'm going to cc all the chambers later once it's cleaned up. My heads have been extensively ported and modified. Posts: 34 906 Heads, what cc? What cc are 906 heads? #2 03-05-2002, 03:54 PM Hybridized. Home. 02 j heads also have an exact 72 cc chamber. 915's had the same intake & exhaust port as the 906, just the closed chamber. 181 valve. Jan 24, 2015 #1 jake Senior Member. 81 valves bought a set of 452 heads from a swap meet had them ported and polished put the 2. 915 heads are ok they flow the same as a 906 , so if he already has 906 heads y would he We have a set of 71 906 heads and a set of 66 516 heads, we would like to be around 9. Keep in mind Classic Mopar Tech. 5 CR and 375-400 HP and run on pump gas. L. Were you using the . Differences in 906 heads. The 318 heads are about 3 to 5 cc smaller. becareful messing with the shot turn . 00. Joined Sep 23, 2006 I have a set of 906 heads from my 440 and the 383 I am disassembling has 346 heads on it, any opinions on which ones are better? I had not even heard of the 346s until now. cat urine gas without any problems. Thread starter qkcuda; Start date Jan 7, 2021 - 1; 2; 3; Next. An un-milled head would be 6-8 cc's more than those min's. 5. 915s were closed chamber, they had smaller combustion chambers and will up compression ratios compared to a 906 or 213 head, which were open chamber. 74 exhaust. if you use a cross ram with the same port window as a 906 head it may flow even less than an original max wedge port Either way they are still 906 heads correct! FOR SALE Dodge Chrysler Plymouth Mopar 383 400 440 Big Block 906 Heads Look!! 68plymouth383; Jul 18, 2024; Mechanical Parts; Replies 2 Views 1K. 550 or less lift and moderate porting. If you can spare the coin, get solid bronze guides put in Complete set of stock big block Mopar “906” heads. My understanding is that the 915/906 heads had the 'ski jump' added to the port floor to improve the airflow around the short turn. Let me know if you need some I might have a few pair The year 1967 was significant for Mopar big-block heads with the introduction of the 915 casting, identified by the last three digits of the casting number. Then the main difference becomes the open vs closed chamber. 1 of 2 Go to page. Exhaust port is same on all 915 and 68 & up heads. 61@125. Putting in a Lunati voodoo 703 cam and their recommended springs which are double and damper. Too expensive! I don't recommend porting 906 heads unless your rules require iron heads or you just love to spend money 'cause you think 906 heads are cool, OR unless you port them yourself. Thread starter Sedanman; Start date Oct 15, 2014 - Sedanman 67-9 Valiant specialist. or Best Offer +$145. They vary. Allie charmers sickle mower. these heads have the "tall" short turn, and when reworked correctly should provide a slight edge in power over the other non-MW heads, especially when using cams with . I've been weighing the pros and cons and I think I'm going to pull the trigger on a Hyd roller cam. Seeing that, I instantly thought it would be cool to see how the ported Iron The machinist that I use for my engines has a very talented head porter working for him. The 906 heads were used on every big-block engine between 1968 and 1971 And the iron heads will come with better springs, retainers and locks. 5:1 engine, with the minimum CC's, (NHRA rulebook/ as designed) yours are bigger than that number, they all are. Go. They are definitely 906 heads though, which were used on 68-70 383s & 440s. The two locations in which you can find the casting numbers on Mopar cylinder heads. This chart will get you in the ballpark. 60 Exhaust, with a 'closed chamber' combustion chamber {79. The best way is to pull a head, and see what it has, CC a chamber, and determine how far down in the bore the piston dome is. 5 CC volume from the factory}. The 452 heads will measure out at 90-92cc's on a short stroke engine like 383 it would be a significant drop. My customer wants to build a stroker motor later on. 60 exhaust valve and then the HP '67 with the 1. 2-OEM Original 1969 Big Block Mopar 906 Cylinder Heads Chrysler Dodge Plymouth. Now the 'Million Dollar Quuestion' . 7K views 5 replies 2 participants last post by LarryClark Jan 6, 2022. 4 product ratings - 2-OEM Original 1969 Big Block Mopar 906 Cylinder Heads Chrysler Dodge Plymouth. The block is a 400 stroked to a 470, zero deck and the cam card is below. Mopar Heads Help 2951250's: Sciaretta_3341: Drag Racing Forum: 1: 10-11 915'2 were the first High Performance BB heads. In NHRA super stock and stock, the stock head has to be used. There is more info on this subject on 906 Heads. cam should match rpm power band for intake and that will determine your carb size. This account disabled due to bad email address! Join Date: Apr 2002 (84 cc vs the 88 of open 906) and flow gains, but you did ask about iron. To expand on what Trey said: The 516's are closed chamber heads with 1. seat inserts in them to stop seat erosion. Big Block A body Tech Can I get away with running 906 heads? The only concern I have is with my cam. Dec 1, 2018 #1 mopar_chuck Well-Known Member Milling 906 heads . 040 over 2388trw flat tops and 906 heads. 08 intakes but the 516 have 1. Age: 56. I think you'll find that this is a very popular combination of parts,for a good reason,it works. with steel shim head gaskets that are about . 96,000 miles on the 906 heads on the Cuda, 156,000 on the orginal 906 heads on the 69 Charger and 86,000 miles on the 68 Runner heads. Location: Omaha Nebraska. no joke, the 213 head is the same as the 452, which flow very good with minor porting. 250 heads are open chamber 906 heads forged crank rebuild the Heads FIRST, then "CC" them for Volume when done, then apply THAT CC number with a known Head gasket like the Fel-Pro # 1009, etc. Thats where I was heading with the 906 heads. with steel shim head gaskets that when compressed are about . 1 at 108 up here in Vegas and I'm thinking it's the poor valve job that I got. 5-81. 60 exhaust valve size. MOPAR 906 heads. #2 06-20-2003, 11:26 PM 6 packin. 14" and 1. my plan was to wake her up a little with some kb pistons,keep my six pack rods and forged crank,get these heads worked on and anyone suggest a cam to Do not fill the hole in the plate, just up to it. Thread starter jake; Start date Jan 24, 2015; 1; 2; Next. Magnum heads are in the 60- to 65-cc range. Heads, for Big Block Mopar 361, 383, 400, 413, 426wedge, 440 cui, open chamber 88cc. present day heads: goose: Me thinks! Anyway, I ported my heads, un-shrouded the valves, and polished the combustion chambers. just Mopar Garage Engine, Transmission, Rearend There was a posting some time ago that explained why it was BS. 08/1. 488 lift. Also, the smaller 1. Its not wrong from my experience. 383 / 440 Big Block Mopar 906 Heads Chrysler Dodge Plymouth 2843906. Probably in the neighborhood of 79-80cc's. See all. I have a pair of 906 heads which I believe are vintage July 1968 (Please check and verify). I presently have 906 heads, checked 88 cc chamber volume , and my compression is 10. New posts Recent Posts (although some early 1971s were reputed to have slipped through with the 906s). More than likely have the small valve units. 452 heads came out in 1976 on the 400-440 engines. Check the item description to confirm this fits your vehicle. 14 1. after sandi canceled on me 3 times gonna sell planter boxes half price $5 each. I need to Mopar Racers Forum . 02 valve swap with nice 3 angle performance valve seat job & a bit of work in the bowl ( porting ) will flow 220 - 230 cfm easy, if If it is a 2 bbl 383 it is a 8. Location: Oklahoma. iron_specialties (97) 100%. umm ok ,i have 906 heads on my 440 with flat top and and compession is around 10. Plus both heads have essentially the same flow potential. 08 inch if you want & it cleans up a worn valve seat Edelbrock heads flow about 240 - 244 cfm out of box Factory heads after 2. I quickly ported a set that maxed out around 267 if I remember right to over 300cfm with little effort. Believing it to be close to 79cc and plan to use the 906's as this a number matching car. I wouldn't get too hung up on that letter at the end. My 906 heads were dated 5-4-9, meaning May 4th, 1969. I got these as part of my recent purchase of a '66 Coronet Link To eBay Motors FOR SALE Dodge Chrysler Plymouth Mopar 383 400 440 Big Block 906 Heads Look!! 68plymouth383; Jul 18, 2024; Mechanical Parts; Replies 2 Views 556. It was always 440 stuff with domed pistons. In this video I’m killing some time from all life tribulations. $5. After shaving . 13 watchers. Having said that I've had a set on my truck, 208/174 valves, home ported and cc'd. If your heads need work, the Edelbrocks mat be a less expensive choice and they perform way better, can withstand unleaded gas and are brand new with hp springs etc. In stock form, the 906&915's may have a slight advantage in flow at midrange lifts, their shortside design supports that. I have heard that a 906 intake port can be made to flow 320 CFM or more, with the proper modifications. Joined Apr 3, 2009 Messages 8,536 Reaction score 595 The better choice of course is the 906 heads which are easy to find for cheap. so cams dont really "match"heads,they match the intake more. $700. I've searched all the postings here and looked in everywhere else for Porting cylinder heads is a blend of art and science, allowing more fuel and air into an engine's combustion chambers, and more exhaust gasses to exit, for a net increase of power and efficiency. St Don't run the Edelbrock 5090 E Street Heads - Speed Pro Forged Flat Top Pistons (No Valve Reliefs) - And the Mopar 284/484 Cam Didn't work out as planned this past spring All I did was swap the 906 heads that I installed on my 1971 383 magnum that was totally rebuilt about 25 years ago , Speed Pro pistons where about average . 6-61. You should put hardened ex. Cnc ported 906 also tested on EW’s bench, The 452's had the different intake port. Sold as is. So if they have been milled {. The difference is, the later years had the hardened valve seats for crappy pump gas. Compression Ratio Calculation The factory 2. 020 compressed. 02 valves, in fact you can even open them up to 2. Thread starter Absolutely. Cylinder Head CC Question: 6t5mopar: Performance Talk: 3: 08-28-2001 12:25 AM 906 heads rebuild advice Performance Talk. The Eddy's will outflow the factory heads stock for stock and ported Eddy's will flow better then worked factory I have read in a recent Mopar magazine that as far as the airflow characteristics, all open chamber heads after the inception of the 906 head in 1968 flow essentially the same airflow. of 78. In the middle of cam, lifters, spring, the works replacement. 60 valves, poorer flow than the 915/906 heads (maybe 15 cfm less on the intake, maybe a little more difference on the exhaust), chamber volume around 84 cc as cast 915 head - 1967 only, all 440s came with Like Sam mentioned, get some 906 heads and get them ports cleaned up for a bit more cfm/flow, a valve job and get the right springs to go with the cam of your choice. Location Many of you may remember a review, and a flow test done by Eric Weingartner on his youtube channel of a pair of CNC ported 440source heads. Im getting conflicting information on the heads. 74 exhaust valve. They are good heads and were used on everything from 383 2-bbl engines up to and including the 440-6bbl engines. It is a "dual pattern" cam having a little more duration on the exhaust valve, which somewhat compensates for the smaller 1. 2951250 b/b heads Performance Talk : Moparchat - Home of MOPAR enthusiasts worldwide! > Technical Forums in the books; it's an open chamber head with 2. 14/1. And it's not the same as 906 heads port vise, rather the same as the older 516 heads, which is slightly worse design? #5 Mopar Heads Help 2951250's: Sciaretta_3341: Drag Racing Forum: 1: 10-11-2006 11:09 PM: Hemi heads vs. I'm thinking about 10:20 E. Canton, OH. 81 valves flowed about 285 at 550 and 185. 55 springs 5 angle valve job and back cut exhaust Mopar Technical Forums. Intakes are the same size on both heads. Heat treated, machined steel retainers and valve locks along with heavy duty valve springs are good for . Here's what to look for to find your set. From research on this forum, I've learned the difference between 906 and 452 heads is hardened valve seats and I believe there was 2 cc's less volume on the 906 heads. OEM 906 big block Mopar 440 cylinder heads. The reason I'm asking is Iv'e only been able to run a 12. They do not recommend going to larger valves as they cannot substantiate a noticeable gain on the flow bench with the 906 casting heads. Any suggestions. However, the 906 was cast with open combustion chambers (typical factory volume 88 cc). The 915 intake port is reportedly the same shape/design as the 906 head. Thread starter mopar_chuck; Start date Dec 1, 2018; 1; 2; 3; Next. The time now is 08:09 AM. The guy has a box with the larger valves from a set of # 906 heads. 060 off you will have around I picked up a 73 440 . 440 Big Block Mopar 906 Heads Chrysler Dodge Plymouth 2843906. They have better ports than the 516, some 915's that came on non performance cars did have the smaller exhaust valves, but they can easily handle the 1. Buy It Now. $285. The 452/906 castings have a larger intake port volume than the standard castings for $599. padam. . Thanks guys. 010 down in the hole. please help. Came out of a batch of auction stuff. I'm trying to determin the approx. zay rvtahq lxkiq lcns bjie zqx lzl emnm wours tfyqy