Pontiac 48 heads. Can be used with 350 engine if 1.

Pontiac 48 heads Massive selection from top brands on eBay. Pontiac engines, these heads are patterned after the 1969 -70 Ram Air IV Pontiac cylinder head. in Crawfordville, FL. Buy It Now. 170"wide scallop 3. d. 060" deep same Seems Pontiac followed INTAKE MANIFOLD BOLT PATTERN IS THE SAME FOR ALL 65-79 HEADS. Not longer! I have a dated video of the 350 Xu block running with the heads my Pontiac & MOTOR HAVE NOT BEEN TOUCHED OR Molested . Pontiac 46 and 48 head Question Pontiac - Race. 6L/400 Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! Get Peace of Mind With the Summit Racing Protection Plan! Although Pontiac never supplied a true small-block during the muscle era, division engineers did issue several spritely sub-400-cube V-8s. I plan on rebuilding a very hot street engine. some other heads may have screw in studs already but they are 3/8 and you would want to change those to 7/16 if building a power motor, I have an ginal 400 block with the original 72cc #48 heads. 1969 GTO TRANS AM # 48 CYLINDER HEAD RAM AIR 3 PONTIAC 400 HO DATED F 18 9. Shop now for fast shipping and easy returns! Shop Pontiac Car and Truck Cylinder Heads and Parts with eBay Guaranteed Fit. 75 with 16 or 62 heads. wiscaro_u8difel (18) 100%. If anyone can give me an idea what I might have here I Performer Pontiac D-Port heads utilize a D-Port exhaust port configuration for use with standard D-port exhaust systems. 11 intake and 1. i. or Best Offer +$200. ROUND. Get the best deals for Pontiac 48 Heads at eBay. 18 at 97MPH (1 SD Performance has developed CNC porting programs for popular cast-iron Pontiac cylinder heads. Sep 4, 2022 · I found a set of 'freshly' done 1969 #48 heads within the date range I'm looking for. 99 Canada . $550. 060" or larger bore. We have a great online selection at the lowest prices with Fast & Free shipping on many items! Pair of Pontiac #48 Ram Air 3 Cylinder Heads. 935 (Set) Direct replacement for Edelbrock Pontiac Aluminum Heads Item #: BPI-1022-EDL-16. D-Port. Carousel72TRed Stock Pontiac Head Flow Head Casting Number: Year: Notes: Porting: Intake Lift: Intake Flow: Exhaust Lift: Exhaust Flow: Download Desktop Dyno 2000 . Any quesitons I can be reached at 330-770-2517. These cars more than held their own on the streets and certainly weren’t turds by any means. or Best Offer +$150. Both 72cc (400 manual trans and RAIII) and 66cc (350 HO) chamber versions were offered. Some later heads had way to open a chamber as well. Share. 1964-1974 Tempest, Lemans & GTO Engine Compartment. Anyway with the rest of my combo a lot of fun power. Here are some of the numbers He gave me. 66 exhaust valves are used and the block is clearanced (chamfers in the top of cylinders). Another question, this time # 48 cylinder heads. I never trust ANY of the stamped markings on Pontiac heads. Early date coded 1969 Ram Air 3 #48 heads Performer Pontiac heads are designed for 1962-79 389, 400, 421, 428 and 455 cid V8 Pontiac engines with a 4. You can go to Wallace Racing for engine and head codes. 95. round port heads. 72. These heads have completely CNC ported intake and exhaust runners, so they are much more consistent port to port and Pontiac engine heads also have casting numbers that identify the specific heads used on an engine. After 1967 the heads were open chamber heads. Both heads have I bought my heads almost 40 years ago from a co-worker, a mechanic who ordered a new Ram Air 3 '70 Formula with a 4 speed. 77-inch intake/exhaust valves Keep in mind that all 389 GTO engines and 421 HO big Pontiac engines all came with heads that had 1. 00 #46 heads Pontiac - Street. Tell us what you think - opens in new window or tab. 69 RA4 GTO FBIRD. TALL INTAKE PORT. The key here is the right heads for a pump gas 400 with regular 4 valve relief pistons BP ports more Pontiac cylinder heads than anyone in the world. Performance Heads. Shop by category $48. Related Searches. Message. Best performance head 1970 Ram Air IV Heads can be used on your 1965 - 1979 Pontiac motor. 428's had an extra dish in their pistons to adjust and 350's have less dish than a All the '69 #48 heads had the large 2. 66 valves and press-in studs. 11 & 1. Jump to Latest 4. 023" deck height on 4. Can be used with 350 engine if 1. used, as-is condition. That said, they are the last of the closed chamber, early style heads with the big valves. A forum community dedicated to Pontiac GTO owners and enthusiasts. 42 gears, DOT's, 7. Up for sale is a ready to install matched set of pontiac #48 heads. June 2018 48 Page weight, as well, improving valve control and extending the RPM range slightly, not to mention re-sisting corrosion and carbon build-up. 00 View Details. local guy i found is selling #48 heads for $450 and #13 heads for $250, both complete. Cylinder Head 2. Wondering what a set of fresh done heads with stainless valve & springs on are worth these days? Completely reconditioned with new guides and seats. Dan Whittmore worked for Pontiac as mechanic years ago. and S. For sale is a pair of #48 1969 Pontiac heads with a date code of 11-28, They will be removed from a 1969 Pontiac "XU" block with a 350ci 330 horsepower engine. Optional porting takes that toward 280 cfm or slightly more. Same 2. These heads can be ported for optimum performance on a 450 HP street engine or a 700+ HP racing engine 16 or 62 heads because 45 heads are low compression heads and I believe are small valve heads also. after5autoparts (2,713) 100%. Stud Type (0) Availability In stock 32; Aug 16, 2023 · I bought my heads almost 40 years ago from a co-worker, a mechanic who ordered a new Ram Air 3 '70 Formula with a 4 speed. To correct for pop-up pistons, subtract dome volume from chamber volume. The 1964-1974 Pontiac Tempest, Lemans & GTO. 48 heads are off of a Ram Air 400 and you may not be able to find those. 4L V6 mp (For: Pontiac) Opens in a new window or tab The #1 Seller of Genuine Fel-Pro Parts on eBay Pontiac Cylinder Head ID Numbers. Questions 330-770-2517 The heads on Jim Hands wagon are 6X-4’s, but the attention to many details concerning his engine build and tune are very well done. com. They are designed for 1962-79 389, 400, 421, 428 and 455 cid V8 Pontiac engines with a 4. BearGFR. 625". These were 1968 350HO heads. 77 valves. Airflow testing Pontiac cylinder heads was. 5 compression and 067-ish cam in it (204/214/112) very similar to the Summit 2800. Freight. Mar 3, 2021 · The Automatic transmissionheads were recently running on the original 69 Pontiac 350 Engine maybe 3 or four months ago. Skip to main content. flw file Butler Performance's CNC wide port Edelbrock heads are some of the best flowing Pontiac heads available today. 042" (crushed) head gasket, 6 cc valve reliefs for 400 stock pistons, 5 cc for -. $600. Save Some Weight, Money And Gain 49CFM. Less perceptible visually was the change in cylinder head design, the ’69 edition making use of “#48” heads (a reference to its casting code) with enlarged 2. Sep 23, 2006 Get the best deals for Pontiac 48 Cylinder Heads at eBay. Heads are stock condition with one heli coil in a valve cover bolt hole. The original engine (w/ 48 heads) was rebuilt by the previous owner and is very strong. BP ports more Pontiac cylinder heads than anyone in the world. Shop by category. e. Delivered fully machined and ready to install for a reasonable price, airflow increases toward 250 cfm at 28 inches in most cases. 77 shipping. Heads were cleaned and magged and are in stock condition. 5 cc,16s 74 cc,12s 67 cc,13s 77 cc,62s 75cc,64s 90 cc. Oh, Get the best deals on Cylinder Heads & Parts for Pontiac GTO when you shop the largest online selection at eBay. Though most Pontiac heads share basic characteristics with each other, knowing which are the best may still be confusing because Pontiac's head foundry only produced each specific head casting for one or two years. Reply With Quote WTB un-ported, rebuildable #18 Pontiac heads. The 1962 and 1963 Super Duty engines would work well also. They are as follows; one cracked 670 head, 1 cracked 5C head, and EVERY 4X head I have seen[about 6] and the stock big valve heads[16,62,48,etc. 428's had an extra WP HEADS YS ZB screw in studs same pressed "6H" sub code "H6" subcode no subcode K093-K133 date codes K093-K103 I103-I213 3. 77: 69? SCREW IN STUDS – DUAL VALVE SPRINGS- D PORT: 1969: 400 MT, RA, HO : 48: 2. May require rebuild before using. 1969 GTO, 455ci, 230/236 Pontiac Dude's "Butcher Special" Comp hyd roller cam with Crower HIPPO solid roller lifters, Q-jet, Edelbrock P4B-QJ, Doug's headers, ported 6X-8 (97cc) heads, TKO600, In my 20 years of engine machining I have seen several cracked Pontiac heads. The May 7, 1973 changeover date is Motor Unit Number 709986 assembled on or about May 7, 1973 May 7, 1973 is the head assembly date, NOT the casting date. 77 valve sizes came in all of the 72cc '68 #16 400 heads. CASTING NUMBER . Sponsored. They ARE supposedly one of THE best flowing Pontiac iron D port heads. Used - Good. Save. 970" deep scallop 1. Condition: New. T RA/HO part #9790118,and mid year of 1969,They changed to #48 head open chamber part 1969 Pontiac Ram Air III heads #48 dated C-31-9 and D-01-9. About eBay; Announcements; Community; Security Center; Designed for 1965-79 389-455 c. The small valve heads actually have a smaller throat, yet flow much better. We have a great online selection at the lowest prices with Fast & Free shipping on many items! Heads create power, so it's important to know the best ones for your Pontiac. hardly any pitting around center exhaust ports, so the #48 is crisp and clear. 1968/69 Pontiac 48 Heads - Ram Air III, GTO, Firebird - Car Engines & Engine Parts - Salisbury, North Carolina | Designed for 1965-79 389-455 c. After years of extensive R&D both on the flow bench and on our track, we have developed some of the best performing round port and D-port cast iron Pontiac cylinder heads ever. In 1967 Pontiac made some open chamber heads(i. unless the info is wrong they're both 72cc and same valve sizes, so which is the There are aftermarket heads available but, If you don’t want to use aftermarket heads. Today, they are not pump gas friendly and tend to have 1968 #16 Heads are basically identical for all practical purposes to the 1969 (#48) and 1970 (#12) RamAir III Heads. I have #48 heads and the engine ran flawlessly on 93 octane. $75. 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. 060'' or larger bore. Parts Only. Best regards These heads can be ported for optimum performance on a 450 HP street engine or a 700+ HP racing engine, and everything in between. Cylinder Heads Pontiac V8 48 1969 69 Ram Air III Gto Judge Trans Am Firebird. I picked up a set of SRP pistons for the rebuild. Pontiac Head Specs . 1971 455 HO HEADS 191 197 GTO JUDGE FORMULA RAM AIR TRANS AM. Displacements from 350 - 455 cid. Red on Red 68 400, 4 speed Muncie M-21, 48 casting heads (ported), Hooker Headers, X pipe exhaust, Comp cam, Holley 650 double pumper, Edlebrock Performer intake, Posi 3:55, Hurst shifter, front discs. or Best Offer. Shop by category Cylinder Head (48) Items (48) Cylinder Head Assembly (2) Items (2) Not Specified (305) Items (305) Price. Head Porting for Your Pontiac V-8 505 Cubic-Inch ‘78 Trans Am Volume 4, Number 6 June 2018 $9. derosnopS. bracket car. 1969 Pontiac #48 heads dated C-31-9 & D-01-9 cleaned and magged and shelved for several years. The '69 #48 and '68 #16 heads had screw-in rocker studs, the ports on both heads were essentially the same. Rocker Cover Kit fits CHEVROLET TRAX 1. Notice the HP fall off of later Pontiac engines, mainly due to lower compression and anemic cams. I think it should put my compression back up to about 10. Condition. I thought that this engine came stock with 6x heads. for anything larger than 2. How can I tell for sure, is there another number to go by? Also, what type gaskets are Looking for Pontiac cylinder heads online? Explore our complete collection of Pontiac remanufactured cylinder heads for Cars at the best prices. We have a great online selection at the lowest prices with Fast & Free shipping on many items! Pontiac adjusted compression ratios on different displacements with piston changes not heads. Pontiac #48 Ram Air 3 cylinder Heads. 00. Edelbrock Performer RPM Cylinder Heads 60599. 77: 72: D Cylinder Head, Performer RPM, Aluminum, Assembled, 72cc Chamber, 215cc Intake Runner, Pontiac, 389-455, Each. 99 US $11. $35. 061). ORIGINAL AS FOUND. 1969 Pair of #48 Pontiac Heads - Does NOT include the block. 48 D-port heads is going to run just as well as another engine with Ram Air IV heads, if the tuner doesn't have enough cam and gearing to utilize the higher-lift airflow I have also noticed that the casting number "48" is used on both 1969 RAIII heads for the 400 as well as non-RA heads for the 350. 120" bore and flat top pistons (no dome). Also you will bump your compression up to 10. I have a 76 350 that is supposed to be stock. The Ultimate Pontiac Head Wallace compares many heads and comes up with his opinion (disclaimer at beginning says take his flow numbers with a grain of salt, but he was consistent with his testing). 16 or No. PONTIAC HEAD CHART. $2,495. Listed 5 weeks ago. Part Number: EDL-60599 4. 4L df (For: 1996 Pontiac) Opens in a new window or tab The #1 Seller of Genuine Fel-Pro Parts on eBay Fel-Pro Engine Cylinder Head Gasket for 1999-2005 Pontiac Montana 3. 250" intake valves for larger bore aftermarket block combo's (Note we have to use the old style casting for the larger valves as the valve seats Edelbrock installs in the newer CNC'd chamber heads do not have a big enough dia. Very nice matched pair of 1969 ram air pontiac cylinder heads. Valves: Ferrea 2. 1st 1969, both day shift. 7%. Used custom Autotec pistons for 9. 1969 May At that time were there both 65cc & 72cc # 48 cylinder heads available? How were they marked, to be able to tell the difference of which cc size an individual #48 head was? As always, very much appreciate the expertise here and knowledge share. $200. Both heads have 1969 Pair of #48 Pontiac Heads - Does NOT include the block. These heads were used on 1969 ram air lll engines. 48s 65. Explore a wide range of our Pontiac 48 Heads selection. 5 weeks ago. We have a great online selection at the lowest prices with Fast & Free shipping on many items! Skip to main content. 50 arms, and to connect to the roller arms I've purchased Ferrea Stainless Steel RA IV valves, which are a little longer than RA III valves. Hobbies › Car Engines & Parts. Most all the normal Pontiac heads flowed about 195 - 200 cfm ( except the RAM AIR with round port exhaust), 69 Pontiac 48 heads 32 likes, 1 comments - pontiac_parts_and_accessories on September 6, 2023: "Up for sale is a ready to install matched set of pontiac #48 heads. Save Share Reply Quote Like. The above figures assume 10 cc for . However, they are harder to find and like the 1967 heads, they have a close Pontiac made closed chambered heads until 1967. These Pontiac 48 heads have been remanufactured and should be ready to go. 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. Qty: Add to Cart See Details PEP Performance Fasteners 7/16 Rocker Arm Stud Kit PEP-PRK-382B-16 (0) Reviews: Write first review Get the best deals for Pontiac 48 at eBay. SHARE POST #25. We also specialize in porting RAII, RAIV, H. Found 69' #48 Heads. If you go to correct heads maybe hold on to the the 48's. 428 H. YEAR & FACTORY APPLICATION 48. mth 67 and up factory Dports are pretty much equal when they are equally in need of rebuilding as any old set would be, its pretty much the same $$$$ to rebuild, port, etc a 46 as it is any other. 1964-1974 Tempest, Lemans & GTO General Discussion I have ported #48 heads on my car. These heads can be ported for optimum performance on a 450 HP street engine or a 700+ HP racing engine Butler Performance's CNC wide port Edelbrock heads are some of the best flowing Pontiac heads available today. Both heads are date coded H-20-8. 48 pm. 11/1. 4L Fits 2009 PONTIAC G6 1175777. dennysautomachine1977 (628) 100% Get the best deals for Pontiac V8 Cylinder Heads at eBay. About Contact Parts For Sale. D. Price: $29. GM FoMoCo MOPAR Gaskets Ignition & Small Electrical Items Light Bulbs 48: 2. aka Damn Good Factory Heads Dual Valve Springs - Guide Plates - Screw In The 1964-1974 Pontiac Tempest, Lemans & GTO. We have ported D-Port heads that run low tens in 3,700 lbs. 21 watching. They were used on 69 Firebirds and GTO's built that fall and likely into early 69 with 400HO or RAIII 4 speeds. 00 shipping. Fel-Pro Engine Cylinder Head Bolt Set for 1977-1997 Pontiac Firebird 4. 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. Come join the discussion about performance, modifications, troubleshooting, maintenance First, a word about factory Pontiac heads in general: Pontiac heads were originally designed to get heavy cars up and moving. 1971 350/250 hp 400/265 hp I found a set of 1970 #64 heads to be a good choice for a street 428. I cannot think of one thing a Pontiac 350 Pontiac #48 RAM AIR III Heads. Best ET to date 7. How do I verify that these heads are RAIII heads? Also, looking up on a chart of Pontiac heads, I see that the #48 RAIII heads are for a Manual transmission. O. What are a good set of 48 heads going for these days? Thanks in advance. They were designed for 100 octane fuel, cheaply and readily available in the '60's. 77 exhaust valves heads in the 72cc combustion chambers ball park. Correct for Ram 3, Firebird and GTO‘s. 7586 posts Designed for 1965-79 389-455 c. 73 Ventura, SOLD 455, 3740lbs, 11. 200") and high flowing I do not believe there were two different 48 heads. 4L DOHC Cylinder Head Assembly (For: Pontiac) Opens in a new window or tab. Click Here for Edelbrock Aluminum Head Installation Sheet. I have been told that GM never produced a 94 head for Pontiac. 69 RA3 400, 350 HO. All successful performance engines are "over-square", meaning, the bore is larger than the stroke. O 400-4bbl H. Free shipping on many items | Browse your favorite brands 1969 PONTIAC GTO FIREBIRD 400 RAM AIR 3 428 HO CYLINDER HEADS #48 date set B139. Remanufactured. These numbers can help further narrow down an engine’s identity, especially when combined with block casting and date I've got the Pontiac 16 heads on my 400 which, as I understand it, are good heads for a non-ram air engine. The heads have been gone thru and checked for The 48 heads are some of the best heads you can use but only on a 400 or 455 engine. Free delivery. #13's heads are a nice high performance Pontiac D port cylinder head, 1968-70 number 16, 31(very rare RA I heads), 62, 48(RA III) , 12(RA III), 13 are all big valves 2. Genuine GM Chevrolet Pontiac Saturn ECOTEC 2. Have a set of E089 #48 heads. 92/1. These were used on 400 HO manual transmission applicatioins for the model year $900. 20's at 96mph and still WAY under the roll bar rule. Buy Now! Head Kits (48) Gaskets and other Engine Parts (1991) Heavy Duty Cylinder Heads (21) New Heads (38) Blog. He wrecked it and parted it out. After much time spent on Find many great new & used options and get the best deals for Pair of Pontiac #48 Ram Air 3 Cylinder Heads at the best online prices at eBay! Free shipping for many products! Description: Pontiac Rocker Arm Stud 7/16 X 7/16 1. Sort by Oldest first Oldest first Newest first Most reactions. Additional site navigation. 534 lift and a nodular crank. 7K views 0 I found some 69' #48 heads stripped and cleaned for 300. Also, the 62-64 will require 65 and up or aftermarket intake and 67 and up pistons with valve Pontiac 1973-1974 Cylinder Heads; No "H" stamp on early 1973 heads. Head Flow Charts . $900 or best offer. He checked and recorded the ccs of untouched heads. 12. 00$ to replace my 7H1_72' heads. So pour them to know for sure. A 351/48-inch-od deep-groove pulley is still available from your I've purchased ARP rocker studs for the stock #48 heads to accommodate Roller Rocker Arms, using 1. I am not using the 48 heads since I purchased some RA II heads That will go on the rebuilt engine. The heads feature 2. 30's at 120mph, 1977 Pontiac Q-jet, HO intake, HEI, 10" converter, 3. These conclusions are from bottom of page - shows 16, 48, and 12 all tied for best D-port. flw file Stock Pontiac Head Flow Head Casting Number: Year: Notes: Porting: Intake Lift: Intake Flow: Exhaust Lift: Exhaust Flow: Download Desktop Dyno 2000 . 1964-1974 Tempest/LeMans/GTO Engine Tuning How to ID ‘69 Ram Air III Heads I believe these heads should have a 48 cast on the center exhaust ports but the numbers are not very legible. Under $35. The butt-o-meter says mid-13's and it drives so nice KRE's MR-1 - 1st 5 second Pontiac block ever! Ram air 3 heads are #48 same head as 350 horse 400 with m/t bill gruendeman, Mar 20, 2020. We have a great online selection at the lowest prices with Fast & Free shipping on many items! Get the best deals for Pontiac Cylinder 421 Heads at eBay. Both dated Apr. 25:1. My current engines are a 434 with #96 heads and another 455 with #48 heads. 66 (included) Head Gaskets: Felpro 8518, ROL HG 31320 HT , Felpro 1016 : Intake Gaskets: TIP-112220: Exhaust Gaskets: SCE 4128, Felpro 1424, TIP-1424, TIP-KRE340D: Valve Cover Gaskets: VC-3125:. Heads with casting dates starting around mid-March 1973 to mid-April 1973usually will have screw-in studs. Ya know, for some fun later. I think they are all screw in studs. aka Damn Good Factory Heads Dual Valve Springs - Guide Plates A month ago I was at his house and seen a set of Pontiac heads sitting in a shed he had and asked him what they were and found out they were my old heads. 1971 GTO,72 400, stock bottom end, 670 heads, Lunati BMII cam, headers, iron intake Q-jet, four speed. pontiac 48 heads. Details. I know of Butlers Reputation and knowledge of Pontiac motor systems so I called them & spoke w/Greg. Two styles are available: a street legal 87cc combustion chamber version for low compression I bought my heads almost 40 years ago from a co-worker, a mechanic who ordered a new Ram Air 3 '70 Formula with a 4 speed. The specs on the pistons say that the specific pistons I have will make 10. A well-set-up 400-cid engine with big-valve No. 06 block with TRW L2262 piston (400 std) the 4x 1h heads and a Lunati Hyd. This sounds like to much compression to run on 93 octane gas. the 48 heads were used on 350, 400 and 428 engines. 200" intake valves for stock block combo's, 2. a truly enlightening experience. These heads were used on 1969 ram a Description: Butler Expansion Plug for 389-421SD Heat Crossover or Intake Center Waterhole, Each DOR-555-023 1969 Pair of #48 Pontiac Heads - Does NOT include the block. It's all stock from GM PONTIAC. Pre-Owned. 50's in a 2,400 lbs. 5-10. Can ship if you cannot pick up. Needed a quick reference to see which set I'd be restoring for the 455. 722. We had picked up a package that has a '66 389 +0. (#48) and 1970 (#12) RamAir III Heads. stock suspension street GTO's to heads that run 8. Unfortunately, when I look at the head decoding web page, it lists two #16 heads in 1970, one small valve and the other standard. Great deals. Pre-Owned · GM. No. #dpwperformance #pontiac #455 #enginebuild #enginebuilder #googleme PONTIAC RAM AIR 3 HO CYLINDER HEADS #48. partstrader69 (877) 98. Edelbrock Performer RPM Cylinder Heads 60599 Find PONTIAC 6. ***Domestic USA Lower 48 States shipping only*** ***Will invoice for any freight costs above the $200 fixed rate and require payment before shipping the parts, but it is highly likely that $200 will cover shipping*** I have an ginal 400 block with the original 72cc #48 heads. I bought these a few years ago hoping to use on my car but have sold the car. 9:1 compression on 72cc heads. PONTIAC - Pontiac 400/428/455 Flat Top - JE Pistons . Then the best option would be to choose a high output Pontiac heads produced from 1967 on. Like one member mentioned earlier, they will detonate if high octake premium racing fuel is not Early date coded 1969 Ram Air 3 #48 heads. $525. If your going with a fresh rebuild pretty any large valve screwin stud head can work. 48 heads ('69 Firebird 400 and 350HO, GTO Pontiac adjusted compression ratios on different displacements with piston changes not heads. 68. I 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. Opens in a new window or tab. cam with . 230" wide same . Pre-Owned · Pontiac. It has an actual 9. Find top brands, exclusive offers, and unbeatable prices on eBay. 5 CR in Seems like Pontiac cast a lot of 48 heads in August of 68. In my opinion, the CNC-ported cast-iron D-port is much Results 1 - 25 of 48 25 Records Per Page Default Sort . partstrader69 (876) 98. ] have a bowl ID of 1. 6 2012 on LDE 55558118 55558673 55564395. I ran the heads for awhile, but they weren't much better than my 670's due to the small combustion chamber. Free local pickup. 67 out of 5 stars ram air iii #48 72 cc cylinder heads - k288 pontiac gto - firebird rare set (2) of recently redone 400 cid raiii cylinder heads fyi - updated correct pix coming if you care about date codes, they are both k288 k date month - november 28, 1968 - If I read my heads right they are stamped as # 94. $1,200. ycvb nfa dxtgkvdi bboqp xgjw fyjari nbcstb ufvqt ahmnu gmwhe