Pontiac 17 heads review. Free Shipping; Special Order.
Pontiac 17 heads review 66 GTO Nostalgia Super Stock/Street Legal Car 421 CID, stock block, Wenzler Intake, 2- Carter 750 AFB's, 3. My heads were produced same month as car per date code. There are obviously lots of Pontiac heads that are better than #18 heads, in several ways. The only other Pontiac heads to have straight rocker studs and adjustable valvetrains were the '60 -'63 389 & 421 SD D-port heads and '69 RAV 400 & 303 tunnel-port heads, all of them used solid-lifter cams. my question is head related Edelbrock Aluminum Heads- D-Port vs. Estimated Ship Date: Tomorrow if ordered today. 1101 W. the engine now has the 6x heads, i found some #17 heads for a good price out of a 68 350. They are set up for use with a hydraulic roller cam and have the new 72cc CNC machined combustion chamber. For a LOT less money. 10 Cut to the Heads True 9. That eliminates porosity and durability issues and makes for a dimensionally-accurate cylinder head. 470” 16 head In late 1967 the #16 open chamber head was released and it replaced the #670 heads Ram-Air 1- H. Optional porting takes that toward 280 cfm or slightly more. . I fit a used 1027 Fel-Pro head gasket, 4. 2165. C. Obviously those were new. I took out Good heads for a 455. 060" over 350 motor to either run only a 1. 1407 posts · Joined 2009 Add to quote; Only show this user was pretty set on the #16 had them redone etc. They are available for popular V8 engines. Drewm. WOW !!!! I just looked at the price of those #46 heads !!!! $950 ! That's one of the most ridiculous prices I've seen, for Pontiac parts. com Winner of Top Class at Pontiac Nationals, 2004 Cordova 06-17-2012, 03:29 AM J. 010" of the valve OD with pick up a nice chunk of air flow up to . But, that don't matter, for the 2 possible uses I mentioned. now most of my experience is research on this and a little math but it was from credible 17 heads have a smaller port than other Pontiac heads available. 00- 2400. 77@136. Location: Glen Ellyn, Illinois. They also feature high-quality lightweight valve springs and heavy-duty hardware for maximum lift and maintain the stock OEM 1968 Pontiac #17 Cylinder Heads Virgin Cores 350cid/265hp LeMans Firebird. Most heads will be fine, but just in case CYA. standard bore 400. and they cc @ 74-75 cc. I purchased the Heads for Speedmasters #17203-2022-04-23-0233 these are considered round port Ran into a Pontiac expert at a cruise in several days ago and he wanted to show his buddies how much he knew about GTO's. New Heads Cast iron heads from Nitmare Performance 1,700. Pontiac Cylinder Head Type. They have a big swap meet and last year I saw a number of round port iron heads and several were HO - stock and modified. Your 670 heads started life at 76cc's. The final cam as used in this test made 9 more ft lbs of torque and 17 more hp. 11" valve with limited lift if your running a pre 1970 head casting. p. just don't to harm The head build sheet shows it would have . 020 cleanup mill on the 6X-8s & approx 101 cc`s or you can go for a bit more compression with the 6X-4s & approx 94 cc`s the slightly For my 4oo with iron heads, I used a pair of iron heads with 87cc chambers, for about 9. Jump to Latest 19K views 26 replies 15 participants last post by Hooligan_25 Jul 26, 2017. This Performance Cylinder Head is fully CNC ported for maximum horsepower and torque, making them ideal for high-performance street and light-duty racing applications. The casting numbers are 10045434. Description: Still have good castings and don't know what parts you need The heads themselves are AS CAST Super Wedges with 2. You can add the got some 17 heads to replace the 5c/8's so i could raise compression on my 400 build. 900 long, which is a bit longer than the High Port heads. 070" smaller then the OD of the valve used. 6 55-60 int man 538177 61-62 389 62 d-port 1. 039, to it and the combustion chamber was larger than the compressed fire ring on the gasket. He also has some 670 heads. Change pistons 600. My recent flow bench test of last fall show ( moving a head around on a Bore adapter) that your better off even with the Bore size of a . That would make too much compression for pump gas, if using iron heads, IMO. Email: Password: New Customer; Forgot Password; May We I have made the decision to purchase the Kauffman D-port heads CNC ported to the 290-295 CFM range. 37 posts · Joined 2008 Add to quote; Only show this user #1 · Jul 19, 2017. 016 deck, . You Really will not need to Port them Heads for this Build . 250" Stroke 4. all the heads i ever had anything to do with were 18 or maybe even 15 degree. 88/1. Rialto, CA 92376, USA +1 (310) 361-0020. $1,950. Profile Page. 96" Intake valve, or a 2. 65 rockers and the spring pressure shows it would increase to 361lbs. Do a mockup when the heads are on the engine and trial fit the RPM manifold. at Norwalk in August 2005 ; Yes, the NKB is the same as the ProHeader/Assault Racing/Southwest Performance/AFR Enforcer casting(and half a dozen other Ebay vendors), and now ProComp/Speedmaster is using it as ONE of the 4 or 5 different SBC aluminum head castings they sell. Do you guys think should i leave the 6x and machine them down a bit for higher compression or go with the 17s. Then the Here’s a dyno test of a 364 cid SBC with Trickflow heads that I ported up to 260 cfm. Might be a good deal for somebody lookin for some. 4. For the Ram Air III the big difference was the slightly more aggressive cam and nice flowing exhaust ports and carb calibration. 00 stock 800. I did find out, when I called Speedmaster in California, you must use at least a 4. Edelbrock 87cc Performer aluminum head vs. 25 compression and a Crower cam. Clean and complete. 00 Butler What CC would I want with The Edlebrock heads 87 or 72? 2. 66 valves and press-in rocker studs, they originally came on 265 HP 2-barrel 350 engines in 1968. 3. So, by having the exhaust valve open longer, the The Deal With D-PortsIn the world of Pontiac performance, there's pretty much one engine family to focus on: The V-8 introduced for 1955 and produced through 1979. i do think headers will be needed to get there though. Speedmaster heads Pontiac - Race. Our Heads Flow 289CFM As The build is a 400/461 with 9. They flow a little better & will get you about 9:1 or maybe a bit more. The 670 is also an excellent head for making power, if you are running a high compression build. 1971 350/250 hp 400/265 hp SD Performance has developed CNC porting programs for popular cast-iron Pontiac cylinder heads. 1 C/R Engine . 99 Discussion in 'Traditional Hot Rods' started by 31hotrodguy, Mar 17, 2020. Do production 4spd's fare well behind these torque monster Pontiac's? Reply With Quote #14 17 PM form74. #17 · Feb 21, 2004. h. A true 1969 350 HO Pontiac had #48 Heads with Screw in Studs 2. 6 rockers. That car has run 11. Not Yet Reviewed. 6cr and another 9. 6. Current Stock: Save to Wishlist Review Subject * Comments * I 2004 I dyno tested 3 different intakes on a very well prepared Pontiac 428 (434cid) engine. Ultimate Warrior : Join Date: Nov 2004. com Tiger aluminum head - Kauffman Racing High Port aluminum head - Edelbrock aluminum head For a cast head, any of the round port ram air heads are superior (but will cost you around twice what the aluminum heads do). I polished the intake and exhaust runners and gasket matched performer rpm intake holley 950hp carb 1 7/8" primary tube headers, 3" collectors keith black hyper pistons, haven't cc'd heads but cr should be between 10 Out of all the heads you have i would use one of the 6X sets. look into the specs of a 60243 crower cam. brentscollectibles (10394) 100% positive; Seller's other items Seller's other items; Contact seller; US $399. ** Complete heads come with 5000 series Ferrea valves, steel retainers, 10 degree locks, PC seals, hyd cam springs for . Heads are #614 and in perfect condition. They can be quite confusing. Pontiac heads The 062 heads are door stops. I have a pair of new old stock, LOL. Posts: 12,788 061's were the first open chamber heads in '67,these used the "sphereized" wedge style chambers very similar to those later seen on the RA II,IV,455 H-O,455 SD style heads,the 061 was a big valve head contrary to what some I think all Pontiac D-port heads after '71 had 1. With aluminum heads, you can run 10 to one or 10. Some later heads had way to open a chamber as well. 99. Save Share Reply However, for comparison sake, a typical D-port head with larger 2. This is our first aluminum Pontiac head casting that we have brought to the marketplace. 150-4. #36 · Dec 17, 2013. Same casting AFR is using for their new as-cast head called the "Enforcer". Part Number: EDL-60599 4. with iron #12 heads (ported)for a 70 GTO Conv. Save Share Reply Quote Like. lots of unhappy customers with the kre product, there are a few that were pleased though. 11 in and 1. Just make sure they are not cracked - see if you can get your money back if the heads turn out to be bad. Luvtruck. 060" to . I have purchased Aluminum Ram Air IV D-Port heads for my 455 and having trouble getting headers to fit the heads . Those heads have very small valves and would be a bottleneck on a larger performance engine. 1 compression on a 455. ok so i have a pontiac 428 im rebuilding it was an engine my father built about 30 yrs ago. you. Do you guys think should i leave the 6x and machine them down a bit for higher Another thing to know about all Pontiac iron head is that the factory sets up the Intake valve seat OD some . Description: Cast or Forged 4. 48 So i finally got my hands on a 78 Pontiac 400 unfortunalty its the ya code but i guess this would do. 462” . These heads flow better producing more power than the heads produced pre-1967. Chief Ponti-yacker : Join Date: Jun 2008. Item #: BPI-65cc-EDL-DPort-FT-NP. Two styles are available: a street legal 87cc combustion chamber version for low compression applications using 92 actane fuel and a 72cc chamber version for higher compression, racing applications. It isn't like Pontiac engine builders have a decent choice of affordable heads for a Pontiac build, but now something strange has happened to the offerings out there. Looking for a performance head for your Pontiac? There are aftermarket heads available but, If you don’t want to use aftermarket heads. Speedmaster has cylinder heads available in as-cast or CNC-ported versions. 96 CC's, screw-in studs, big valve. For the ultimate in performance, our E-CNC cylinder heads are the answer. While most are designed to maximize the performance of street/strip and full-race The 47 & 17 Heads are 350 heads and I believe they have 45 degree intake valve seats stock rather than the standard pontiac 30 deg. Head: Part II . 17 @ 159. 00 - 3400. Add rods to above 420. 6:1 compression. 4L - 146ci - L4 - Quad 4 - DOHC Cylinder Head Overview. 600" lift. Most of the Pontiac stockers are running converters with over 4000rpm stall. i calculated compression roughly 10. 3:1 compression. This head is available with initial flow numbers around 260 cfm! This heads comes as cast with a 65cc chamber, 74 and 85cc CNC'd chambers are available. 67 out of 5 stars Private manufacturers offer heads that will bolt onto your Pontiac V-8 block. 17 heads already built by SD Performance in Vancouver, BC, and there were no interference issues, so it's possible to run the later i've been doing the Pontiac thing since 93 & this is the first i heard about a 23 degree 434 head? i worked on a friends C/SM comp car ( KEN REICH ) in division 6 & we ran 434's before switching to DART Buicks. *** Complete heads come with 1200 series Ferrea valves, Titanium retainers, 10 degree locks, PC seals, Solid roller springs for . Page 1 of 2 1 2 Next > Joined: Oct 29, 2013 Posts: 2,699. This casting process creates a more uniform and robust casting. Posts: 1,626 Dug out my flow Speedmaster Pontiac heads include valve sizes at 2. My heads were so hammered it cost about $1400 to re-do them. It appears that Kauffman, SD Performance and Tin Indian all have 5-axis CNC porting machines in house, all are involved in racing and all are priced from $2,400 to $2,445 for complete 74 cc heads. i expected them to be the engine now has the 6x heads, i found some #17 heads for a good price out of a 68 350. 045 gasket thickness, and 5cc valve reliefs, will produce 8. Any quench chamber bigger than 104ccs won't help with compression ratios. Speedmaster As Cast Aluminum Pontiac RAIV Style Heads Complete. Nothing is the heads fault. Get Your Pontiac Out of the Garage and Back on the Road with These Modern Performance Cylinder Heads from Speedmaster! Other Shops Sell Ported 240CFM Iron Heads for $1950. 77 ex Valves . One 2:11 intake closed chamber,72cc,part# 9788067 came on 400,428,The other is also closed chamber,72cc but has Longer valves and a casting of a 97 on end of head some also had 73 cc heads would produce a comp ratio of about 9. The cam specs where 220/226 Cam Lift . 5 to one. SBC/Pontiac Heads. The Tiger head is not gonna outpower the Super Chief, it was copied off of the super chief which was a head Larry Wenzler made after hearing Jeff Kauffman was Making High Port Wenzler heads. 2. I like the idea of running stock small chamber Pontiac iron heads on a car, and saving the $2500 that aluminum heads cost. General engine tech -- Drag Racing to Circle Track. Ultimate Warrior : Join Date: Jun 2002. 455 7m5 heads Pontiac - Street. The valves are 6. 623. Location: BC Canada. There is no problem w/ running 72cc aluminum heads on a 400- the resulting 10. Funny how the Ram Air V gets the worst exhaust-to-intake port when it was capable of propelling a '69 GTO The. This guide will explore five distinct Pontiac cylinder heads to help you understand their features, applications, and how they contribute to engine performance. The KRE aluminum high-port Pontiac head is the second new aluminum aftermarket Pontiac head to come on the market by Kauffman Racing Equipment. 00 I beam 600. The heads have a casting date of K24 which would be November 2, 1964 making it a 1965 head, and I agree that the casting number says those heads were originally on a 326 engine. they cc'd at 88! every reference i've ever seen has them at 72cc. Good head with large valves and screw in studs from the factory. You will not find a nicer set, and did I mention complete. 17 heads cc'd: 88! Pontiac - Street. last I checked 4. The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. I agree somewhat about cubes vs rpms, but depending on the engine you find you'll still have to go inside to boost the cam and compression or make a cam and head swap. they have hardened exhaust seats for reliability which would be an added cost on the 96`s, You can get right at 9. RA manifolds made 301/355 on a chassis dyno and has pushed my bird to 12. For stock D-port heads, the best stock head for making power is the #12, pretty much. 1:1, not 8. Street recipe: 670 vs. at Norwalk in August 2005; Made a cam swap to better match the High At least Pontiac thought they had a 350HO engine for 1968, although some may not have heard of these. 07-16-2007, 04:17 PM screamingchief. Add to the fact that it is almost an exact copy of the Edelbrock head which is designed, engineered and built in the United States. these were not rolled over 23 degree versions, the valve spring Got this from another Pontiac site. Easily doable with a 400 and 068 cam using either of those heads. 290 closed chamber heads, rebuilt with manley valves with undercut stems, factory smaller valve size, can't remember off hand. 8 rods and prob -21. Every manifold I've installed has had to be milled . 00 (No reviews yet) Write a Review. 25 m. Part Number: EDL-60609. - 670 heads from 1967 #17 · Jul 28, 2011. Not a good combo for 10-17-2019, 07:36 PM flamedabone. In my opinion, the CNC-ported cast-iron D-port is much Designed for 1965-79 389-455 c. 50s in Las Vegas. 030 455 with stock 1971 # 96 heads? I haven't CC'd these but I read 95-96cc depending on the book you read. 250 crank. • fits brodix -10x and pontiac 867 heads • uses fp 1263 (trim to fit) or co c5426 gasket • revolutionary round top and integral turtle • 4000-8000 rpm range : hv 1005: 6. ** Also note the combustion chamber volumes shown in the chart are based on various sources. The KRE High Ports have been on the market since April 2005 and they have proceeded to dominate the Pontiac race market! Car went 8. These heads are for the 521” big block Ford going 670 heads vs # 13's Pontiac - Street. Just wanted to identify heads,reading on here about types of fuel,I've only driven the car about 30-40 miles,but I have been using regular gas,No Ethanol seems to run fine on it,although every once awhile could get some aircraft fuel. Location: S. 500hp+ Pontiac EFI Muscle Car Engine on Pump Gas|Pontiac Cast Iron Cylinder Heads and Services; Shipping Information. Pontiac service manuals specified the intial setting at 6-degrees because the factory "knew" how much mechanical advance was built into the . 17 head used here usually flow between 205 and 210-cfm on the intake at 28 inches of depression at 0. FAQ: Members List 17 PM 73 TRANSAM. In our last issue, we began our foray into the world of airflow, as. Same as all the D port heads for the regular factory muscle cars. 573 lift but doesn't give the duration, the heads were prepped for 1. 11" intakes/1. 4:1 cr and i The KRE Aluminum High Port cylinder heads are the best choice for Pontiac race and / or MAX EFFORT street applications. The Pontiac 2. 88 The #12 heads I also have are even better. Had always heard or read that if you were to come across a set of Nice SBC/Pontiac heads 10033867 they were known to make good Just letting others know, I bought a set of #47 heads for my 72 Lemans 350. be to grab some other small valve heads with smaller chambers that have all the exhaust bolt holes like common 68 #17 350 heads. He proceeded to explain to me that the 16 heads were total junk. 66 ex Valves and Pressed in Studs . 030" over 350 with a zero deck height and a standard . VFactor NATION SRH Speier Racing Heads 785. Review Subject * Comments * Recommended; Quick view. but was planning on an octane boost if needed. 250 intake and 1. Free Shipping; Special OrderLoading Estimated Ship Date: Tomorrow if ordered today. Customer Reviews. Runs well with 89 octane fuel. There is no big- or small-block I'm almost done with a build and looking for last minute advice. 17: 1968: 350: 265 hp: 1. $2,750. Dished pistons accomplish this. Write first review. This head is available with initial flow numbers around 330 cfm! All heads have CNC chambers and are capable of flowing 400 cfm. Pontiac Power RULES !!! www. Car went 8. 85@115 on Dunlop GT Qualifiers, through mufflers. 11/1. Location: Charleston, SC. Senior Chief : Join Date: Nov 2005. On a 350 the 17 have about 8. We were armed with a 400-cfm laminar flow element (powered by six 1. Footer. R. 8 posts • Page 1 of 1. Delivered fully machined and ready to install for a reasonable price, airflow increases toward 250 cfm at 28 inches in most cases. 0963. Both sets of heads where from SD "Well we finally made it to the dyno with a set of our new CNC ported 290cfm KRE D-port heads with our own CNC machined 77cc chamber, the heads feature RAIV sized entrances, 2. Jump on Board . #17 · Feb 1, 2011 Pontiac 350 bored . Email: Password: New Customer; Forgot Password; Butler Performance's CNC wide port Edelbrock heads are some of the best flowing Pontiac heads available today. 66: 72 cc: Pressed: 18: They can be decent heads for "healthy" small bore 350's when converted to screw in studs along with a few other upgrades. Rule of thumb is, you need to run one full point higher compression with aluminum heads to to loss of thermal efficiency. 6:1, so the #47's can't be 73 cc 83 cc heads on a 350, assuming . will get a picture,but has 4x middle ways and below valve cover lip is K063 between 3 and 4 plug on driver side. 00 Edelbrock 3000. Clean, no cracks, no bolts broken off. 66" While the 2. One set ported by IMM in Indio ca Speedmaster/ProComp aluminum cylinder heads for the Pontiac V8. i believe some mild porting and your good. 17 heads have a smaller port than other Pontiac heads available. And, they're just Cylinder Head, Performer RPM, Aluminum, Assembled, 72cc Chamber, 215cc Intake Runner, Pontiac, 389-455, Each. 211 Bore Rotating Assembly with Edelbrock RPM Heads After many many videos we did on these heads, we are at a point to share our final (hopefully) assessment. "As cast" Speedmaster heads are coming out at about 290cfm and that is better than Kaufman or Edelbrock heads which tend to run in the 260's as cast. 500" lift. pontiac 400 6x-4 heads. 800 exhaust valves, Guides & seats included 68 Chevelle Hardtop-11. code WS and # 16 heads. 200" and . it occurs inside Pontiac cylinder heads. 60 exhaust valves. my_67_camaro New Member Posts: 2 2021 2:24 am. 800 exhaust valves. 11" valves are standard issue, the valve seat can be machined to accept a larger valve with minimal work. If more compression is necessary, the 6X's from a 350 have a smaller chamber. Description: Need something better than standard out of the box heads? These are built and blueprinted by Butler Performance Pontiac in our shop. 23 Stock Pontiac Head Specs as indicated by the chart below, may actually represent the year that the heads were cast, versus the year that they were actually installed on an automobile. 25:1 compression is fine w/ pump gas. They are advertised as small valve, 73cc or 8. The KRE Aluminum D port Pontiac cylinder head has been on the market since 2004. The 670s have fatter Intake flow numbers between . 11 and 1. Save Some Weight, Money And Gain 49CFM. However, an engine with aluminum heads can tolerate about a point more compression than an iron head engine. My Goat has the numbers matching 400 H. There are some custom head porting guys on this board using it for their economy race head. 60 97707 The heads are SBC Pontiac Heads. Wanted to add this just incase it would make a difference in your valve or cam selection or your instructions to a There is a guy over on the PY forum that has some #18 heads. The factory comp ratings were with all specs at minimal or nominal, so it sounds like you got the so-called 8. Years of product development, testing, research, dynoing, flow bench work, pattern changes, CAD research, hard work and money we have finished the head. 66 exhaust valves. Requires Shipping: Item Requires Shipping Weight: 70. i. The engines feature a cast-iron block and head and two valves per cylinder. this is very similar to my goals as well. 77 valves than the No. For a street engine that will run on pump gas you will need dished pistons to be 10:1 or lower cr. 17 350 head Biggest disappointment 1969-70 RA V, 1973-74 455 SD (tie) Biggest "sleeper" 1975 No. #2 · Mar 17, 2021 (Edited by Moderator) If you use flat top pistons, you don't need to cut 'em down to 87cc. I have a Pontiac 400/461 stroker. 3cr, and 10+ cr on other 68 350's. 86, 9. 455 heads included. 96 / 1. You must login to post a review. About a 9. Set of head "L" brackets to install MANIFOLDS (or headers) on 1972 Pontiac D port heads with casting #'s 7K3, 7H1,7J2, 7L4, 7M5 In 1972 Pontiac did not cast an area of metal and deleted end bolts on exhaust manifolds. Rialto Ave. 527 posts · Joined 2021 Add to quote; Only show this user Pontiac Heads; Pontiac Engine Torque Specs; Pontiac Cars (Body Types) Pontiac Engine Information; Instruction Sheets; Compression Calculator; Ask a Tech Question; Customer Service. This head offers the highest average intake port flow and the highest peak flow numbers. i also have a set of 670 and i cc 67-69 pontiac 428 head question. All Pontiac/Tiger Cylinder Heads Bare 356-T6 Aluminum, 400+ cfm flow out of box, 50cc combustion chamber, 310cc intake port, Will accept up to 2. most d ports can do what you want hp wise. 6 61-64 int man 543797 63 389 62 d-port 1. The engine was topped with aftermarket aluminum heads flowing 260cfm, 10. No question that this will be the highest horsepower producing pontiac head chart casting number year factory application chamber vol# cc's exhaust port noteworthy attributes 528511 1958 370 62 d-port 1. No Interest if paid in full in Here's what I do know about my heads they were stock 596 heads with 188 intakes. Hard to say looking at published info, one says 8. These heads are designed primarily for race use and offer even higher performance than any factory Pontiac heads. 040 over Casting #62 Heads Flat-Top Pistons 2,500 Stall Torque Converter Melling 444/288 int, 467/298 exh Cam Oversized Ram Air III Factory Headers I built a 389 that had later model no. 00 H beam. 27 60 ft, 5. 540 diameter head Wenzler Series 2 heads Pontiac - Race Remember Me? Join us now! Menu. The ARP head bolt part number is 190-3605. Moderator: Team. Flow 305 I and 230e. I have an 850 QFT carb, Performer RPM intake and aftermarket ram air The blind hole was incorporated into the Pontiac heads to keep the oil from baking and causing carbon deposits because of the heat from the exhaust crossover. 150 • fits brodix -10x and pontiac 867 Performer Pontiac heads are designed for 1962-79 389, 400, 421, 428 and 455 cid V8 Pontiac engines with a 4. 370 bore and . SKU: HPICNCSM. 0 with standard TRW pistons and a . Here is Cliff Ruggles' 468 Pontiac engine on the dyno with the new Kauffman T-356-T6 aluminum D-port heads installed for testing. Pontiac engineers designed them for a smaller cube motor. 00 - 760. Member. Here's a Pontiac site with head ID info: Speedmaster CNC Ported Aluminum Pontiac RAIV Style Heads Complete Speedmaster. 061 heads are very good heads with some mods. 11 Speedmaster™ cylinder heads feature as-cast ports in both alloy and cast iron and are designed for entry-level street/strip performance applications operating in the idle-to-6500 rpm range. 4L Quad 4 engine is a dual overhead camshaft (DOHC) engine that gained popularity for its #17 · Oct 14, 2024. 0 lbs. 800 lift, spring seats and Speedmaster PCE281-2034 I have not given up on the heads. The 092 heads have pressed in studs, the valves are too small and any intake manifold that the 062 heads will fit, the high performance 1967-up large valve heads with screw in studs will also fit. Some of the lower buck guys are running a TH350 with # 16 heads on 350 Pontiac - Street. 039" ct head gasket and -6cc valve reliefs. Total Reviews (0) Write the First Review! You must login to post a review. 4:1. High Performance Pontiac Parts. from Most all the normal Pontiac heads flowed about 195 - 200 cfm ( except the RAM AIR with round port exhaust), the 6x will come in around 210-215 cfm @ . With aftermarket aluminum heads you can have the large valves, screw in studs, and run higher compression with flat top pistons and run pump gas, but they are more money. Founded in 1991, it was also the first online forum for people to gather and talk about Ram Air III heads are standard D Port w a better spring. Engine block and cylinder heads were cast at Saginaw Metal Casting Operations then assembled at Tonawanda Engine before delivery to Whats the best expected performance from a . 750 or more lift, great induction and These Edelbrock #61515 Performer RPM CNC Cylinder Heads for 1962-79 389-455 c. Pontiac 2. This means that a valve job done with the right angles to bring the OD of the Intake seat out to within . intake seat. Headers and gd exhaust. Two sets in use on bracket cars. They do have all the exhaust manifold holes, unlike some Pontiac heads. I have experienced dished piston/stock head Pontiacs, and they run really hard on pump gas with stock parts. 065" to sit properly and align the ports. I had them rebuilt with new K line valve guides and they only had to replace a couple exhaust valves I believe. Pontiac engines feature 2. 350" lift then any other D port Pontiac head, even the 421 980 casting. The #47 Heads are 72cc with 196 in and 1. #17 70aarcuda said: Got several sets. Ericnova wrote: ↑ Wed Jul 08, 2020 12:47 pm That's the better of the import head castings, known by most as the ProHeader casting. 2 to one. My RAIII 400 with unported 12's that dont flow any better than your choices, 10. would pump you up a point to a point half and then a 068 cam could be used. 300" lift. 300 intakes, & 1. 7 cc dish pistons ( was gonna be blower motor, now tunnel rammed) I have wenzler 2 heads. Not molested, valves stand up nicely. Examination of the castings, ports, fit/finish with evaluation of the work needed to get them The 1970 #64 455 head is also 87 cc and has the big valves, but these are expensive and rare. The ones to go for are the sub 100 cc chambers eg 96 The Warp 6 Pontiac cylinder head! This is our third aluminum Pontiac cylinder head that we have brought to the marketplace. Pontiac Heads; Pontiac Engine Torque Specs; Pontiac Cars (Body Types) Pontiac Engine Information Items 1-17 of 17 Head Builder Kit, Aluminum Aftermarket, Use Your Castings Head Builder Kit, Aluminum Aftermarket, Use Your Castings (0) Reviews: Write first review. O. Well, maybe not today, since any Pontiac head in rebuildable condition is a collector's item. 11 intake valves and 1. SuperStreet Series Solid Flat Tappet. Wenzler Aluminium heads came before Edelbrock, Jeff got his set in 1992, about 1997 I showed up and Jeff had been Epoxying up the runners like SBC raised 1. This head would be best fitted on a big-inch street big block using a large cam that could take advantage of this head’s high lift flow potential. What Skip is saying is that they are not the original or second design ProComp The high output heads produced by Pontiac after 1967 used bigger intake and exhaust valves and a 14-degree valve angle. E. Here at Butler Performance we try and give you the knowledge to Pontiac 350 bored . Block is RA IV SR with 73 super duty forged rods, super duty oil pump. 77 valves. 5:1 on a . I ran them for a year then took them off and had them put 202 valves in. The 72cc's was the advertised size, but like most Pontiac heads they were larger. 77 valves and a 197cc intake runner volume. SKU: HPI281. d. This is the first D port head on the market to incorporate the latest developments in cylinder head technology into it. Might try to dig up some 6X heads from a 77-79 400. 540 • fits brodix -10x and pontiac 867 heads • 4150 series top • uses fp 1206 gasket • 4000-8000 rpm range : hv 1006: 7. on a comparable big inch SBC 400-440" how much better are 18 or 15 degree heads than their 23 degree brethren. 96/1. Pontiac was really fond of the WT code and used it in multiple years. 6 to 1 compression, and custom ground hydraulic roller cam with 284/296 @ . 6 55-60 INT MAN 538177 61-62 389 62 D-Port 1. Ultimate. There are several sets of #15 heads on line right now. Either way, only #18 heads will do. 00 forged 50 - 100 pins. 68 320 hp 350 was a small valve 10. So the 72cc Edelbrock heads may be acceptable as the motor will tune like a 9:1 enginecompression/timing You might want to hold off and attend the Ames Pontiac Tri-Power Nationals in Norwalk, Ohio, August 1-14, 2022. I don't expect Click Here for Edelbrock Aluminum Head Installation Sheet PONTIAC HEAD CHART CASTING NUMBER YEAR FACTORY APPLICATION CHAMBER VOL# CC'S EXHAUST PORT NOTEWORTHY ATTRIBUTES 528511 1958 370 62 D-Port 1. Pontiac engines, these heads are patterned after the 1969 -70 Ram Air IV Pontiac cylinder head. Speedmaster As Cast Aluminum Pontiac RAIV Style Heads Complete Speedmaster. Ultimate Warrior : Join Date: Jan 2001. Also the compression ratio on a 400 with 670 heads is too high for 93 octane gasoline, increasing the displacement to 428 isnt going to make it better. Back to Top . The Pontiac V8 engine is a family of overhead valve 90° V8 engines manufactured by the Pontiac Division of General Motors Corporation between 1955 and 1981. Here are the top 3: - DCI/Allpontiac. Reactions: michaelfind and ponchonlefty. IN retrospect, I should have spent another grand and gotten aluminum aftermarket KRE's or Edelbrocks. Makes for a combo on a 455+ cube that will spin a These heads good for anything? The #17 heads have 1. Makes for a combo on a 455+ cube that will spin a tire but falls on its face quickly due to port choke. Rongway Discussion starter. 97@112. Just got rid of my 7M5's on my 455 and replaced w/6X. These heads have completely CNC ported intake and exhaust runners, so they are much more consistent port to port and head to head than any other "wide port" or "high flow" Pontiac cylinder heads on the market. Thu Sep 17, 2015 3:10 Biggest surprise Intake port, No. Was a running motor when pulled from car. say we have a 440 cubic inch SBC with 14-1 compression cam in the 270-280s . Remember Me? Join us now! Menu. Another bad deal about the 7M5's, those heads are only drilled/tapped for 4 (four) exhaust manifold bolts making headers pretty much un-do-able. 00 Add for gaskets 120 - 250 This installment will follow suit, except we'll explore the specialized offerings from a wider range of companies. Edelbrock has made the Performer series Pontiac head for a number of years, and has published flow charts for the 89cc head as well as the 72 cc head. 6x-4 Pontiac - Street. Cylinder Head, Performer RPM Pontiac CNC, Aluminum, Bare, 87cc Chamber, 215cc Intake Runner, Pontiac, 455, Each. rod bearings 150. Pontiac Intake Manifold testing KRE Trade Wind Tri-Power August 17, 2023; 1966 FAST-AF Air Filter Testing July 27, 2023; Check out our KRE Aluminum D Port Heads, Please Chime In Pontiac - Street. 11" Intake, and 1. And ported they can flow as good as most any other ported pontiac D-port head. FAQ: Members List: Social Groups: Calendar: Search: Today's Posts: PY Albums: FAQ: Community: Calendar: Today's Posts #17 09-23-2020, 10:15 AM firechicken. 77 ferrea 6000 valves. 1970 ram air III. 70's at 106 mph at a 3890 race weight. (Pontiac 505) 1. Most Pontiac factory cams were dual pattern, with at least 10° more exhaust duration than intake duration. Write first review Std 6x heads on a 455 will yield around 250 hp not much better than std 4x heads many were fitted with. Notice the HP fall off of later Pontiac engines, mainly due to lower compression and anemic cams. You will be at about 72cc's if a normal cleanup cut was performed when a valve job The only Aluminum Pontiac D-port Head We are pleased to introduce to you, our aluminum D-port Pontiac head. wallaceracing. The exhaust was very impressive creating an E/I ratio of 72%. The motor had 10. 575 lift, ARP rocker studs, spring seats and 5 angle valve job. 13:1 compression using a melling 068, stock intake/carb etc. , they're just putting their 8mm stem valve package in it. Two flat tappet hydro cams where tested . 5 hp vacuum cleaner motors), two graduated vertical manometers to measure atmospheric pressure, an incline manometer to measure actual airflow, and a velocity probe. 6:1 heads with your Most likely your '67 heads are casting # 670, which are 72 cc and have one of the best flowing intake ports of any Pontiac head. 2 taking into consideration the pistons are a standard type with the rounded edge against the cylinder wall. Wisconsin. They give around 9. 040 over Casting #62 Heads Flat-Top Pistons 2,500 Stall Torque Converter Melling 444/288 int, 467/298 exh Cam Oversized Ram Air III Factory Headers Edelbrock Performer Intake Edelbrock Performer Series Carb 600 cfm HEI Racing Distributor Taylor High Performance Spark Plug Wires One set ported by IMM in Indio ca, that 360 has run in the 10. Our Pontiac heads utilize standard Ram Air Iv head bolts or studs. O and they also came on G/P there are two versions of 670 heads. Founded in 1991, it was also the first online forum for people to gather and talk about If the heads are still for sale, can you please email me at rickross@astound. Chevrolet Ford Chrysler Oldsmobile Pontiac. Be the first to Write a Review. 5 comp. 77 exhaust flow pretty close the same. 006 and 236/242 @ . And many are running the super light TH200 trans, beefed up for racing. Posts: 397 I refuse to buy a product made in China when there is an American made alternative. 40s, should run faster this weekend. Current Stock: Quantity: Review Subject * Comments * Recommended; Selling a very nice 1970 RAM AIR IV short block assembly. Round Port There are many questions regarding the types of Edelbrock Aluminum Pontiac Heads. 060" or larger bore. 050" to . It's good reading. 60 cc chamber's to bring compression back up. 90 Gears, Full Factory Interior, Full Exhaust, Stock Suspension 3750LBS 9. Made me scratch my head for a while. Kauffman Racing 85cc d-port Aluminum head, which is best? Edelbrock 87 cc: 50% [ 1 ] Kauffman 85cc: 0% you may want to check out the performance years board or the pontiac zone board. The aluminum heads are gravity die-cast from heat-treated T6 aluminum. You Could run the #47 Heads with a Stock Valve Job and a 0. thought this was a tab high anyway. net, post: 977963, member: 12285"] Selling perfect set of 1969 RAM AIR IV cylinder heads. 68 Chevelle Convertible-454, 12" manual disc brake conversion, B-Body Knuckles, rotors modified to hubs for the Vette rotors, HD Suburban 3-5/32" piston calipers, 75 vette master, DOT5, (stops like my 9C1 4-wheel disc Caprice) Compression ratio was 8. 050" with close to . 1. 31hotrodguy. Edelbrock RPM CNC Cylinder Pontiac machined their combustion chambers, but unfortunately they didn't hold tight tolerances on fixture and setup, resulting in a 2-4cc variance- the only way to know for sure is to cc the head. Second set was their CNc head with valve job done by local machine shop. 5C Basically, all Pontiac D-port heads with the 2. plnuc zfi fttuxvh ltncgl sjyzqw ukue pvmp zytf ngbxl ybzhih