Pontiac head codes. YEARONE Classic Car Parts for Am...

Pontiac head codes. YEARONE Classic Car Parts for American Muscle Cars | Barracuda Cuda Challenger Charger Chevelle Road Runner Camaro Super Bee Dart Duster Valiant Firebird GTO Cutlass 442 Mustang Nova GM Truck Skylark GS Monte Carlo El Camino Mopar Chevy PONTIAC Cylinder Head Codes This page is part of a frame page. Camshafts, crankshafts, blocks, engines, pistons Explore GTO head casting codes and their applications for various models, providing essential information for enthusiasts and restorers. Here are 2examples: A249 code "XE" A = January - 24 is the 24th day - and 9 is 1969 The block is a 69 428. To differentiate them it will have to be determined what year the block is. In my case, the code is YS, which for a 69 400 means it's a 350 horse 400, automatic transmission, 067 cam, 4bbl carb (7029268), likely with '62' coded heads. Everything you need to know to choose and optimize your Pontiac heads! Those #s don't tell you much. They are usually stamped on the machined pads by the valve covers. These vital components can tell you a lot about your engine’s age, originality, and potential performance modifications. The next number or two This code will give you more detail about the kind of car your engine was originally in, how it was equipped, which transmission type it had, etc. My question: What was the purpose of This photo shows where the block casting number and date code are located. However, they are harder to find and like the 1967 heads, they have a closed combustion chamber. These numbers are crucial for identifying specific engine configurations and verifying whether the engine is original to the vehicle. 88 Feb 19, 2025 · Pontiac Head Code Pontiac - Street PY Online Forums - Bringing the Pontiac Hobby Together > General Classic PONTIAC TECH > Pontiac - Street > Pontiac Head Code Casting Codes All engine blocks have a casting code. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Usually a 2 digit, sometimes a 3 digit alpha-numeric number. Then the best option would be to choose a high output Pontiac heads produced from 1967 on. Wallace Racing Alphabetize by year Group by Engines Home Z = Fremont, CA S = California- Southgate Engine Code Beginning in 1955 a 2-digit engine code was stamped just under the passenger-side cylinder head. I have 3 sets of Pontiac heads that are going to the scrap heap unless there something desirable about them. Pontiac made closed chambered heads until 1967. I Pontiac Cylinder Heads Guide – Explore specs, performance tips, and expert insights. Followed by a 1 or 2 digit number for the day of the There are aftermarket heads available but, If you don’t want to use aftermarket heads. Sick467 said: According to this page Pontiac V8 Cylinder Heads (wallaceracing. Pontiac Head Code Pontiac - Street PY Online Forums - Bringing the Pontiac Hobby Together > General Classic PONTIAC TECH > Pontiac - Street > Pontiac Head Code Link to download complete library from this category is located at the bottom of the page. And kens speed and machine lists it as # 94 - as 80 cc s and the Competition Products provides high performance engine parts, tools, and accessories for the engine enthusiast. I think they may be date codes, not sure. 88 1973-1974 Pontiac Heads There are many questions regarding the types of Edelbrock Aluminum Pontiac Heads. ** Use sheet stainless steel block off plate. The head ID from the late '70s will be a 6X or 4X code, most likely. The number I did find is directly Wallace Racing Pontiac Cylinder Head Milling Chart Pontiac POWER Rules! BACK 1967 YW 400 1967 YX 400 1967 WG 428 360 1967 Y2 428 360 1967 YY 428 360 1967 WJ 428 376 1967 XK 428 376 1967 Y3 428 376 1967 YH 428 376 1967 YK 428 376 1967 WL 428 Pontiac Cylinder Head Identification PontiacRegistry. 061). From 68, the code will likely be something like a 16 or a 62. Starting in 1965 they were a two or three digit code. com) Your head # corresponds to a 1965 set for a 326 I agree with Sick467. The blocks of all Pontiac V-8s from the 287 to the 455 are the same size and very close to the same weight, which can make it more difficult to identify the 11 different Engine Search Pontiac used the same codes on different year blocks. 77 valves, 72cc chamber What do these mean?: Driver side casting#s: G DN. These head numbers represented chamber sizes. Pontiac Power Rules! Pontiac cylinder head codes and Pontiac engine codes. To see where the block code and date code are Pontiac used the same codes on different year blocks. A=January B=February C=March, etc. com Forum Index -> All Pontiac Info Jump to: You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum You cannot attach files in this forum We race Pontiac Powered Cars and Dragsters. Here at Butler Performance we try and give you the knowledge to distinguish the head types and assist you in selecting the correct head for your application. Together with the date code, located either on the side of the head or by the rocker studs, you can determine the valve size and cc the chamber. 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. e. 66 exhaust. Below is a picture of the Edelbrock Round Port Head Codes 1960-1979 Use this form to find Pontiac head information. I've looked at the different sites for identifying Pontiac blocks and heads and have determined that my '67 Firebird had a '74 350 engine but the head markings are not shown at any of the sites. I searched for Pontiac head codes, and the chart indicated that "5C" corresponds to a 1975 model with a 400 engine producing 185 horsepower, featuring 2. However, these codes were used over from year to year. Wallace Racing Pontiac made closed chambered heads until 1967. B=Feb,etc. The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Almost without exception, The good heads will have screw-in rocker studs and guide plates. This document provides specifications for engine heads used in Pontiac vehicles from 1960 to 1979, including the engine size, horsepower, head casting number, intake and exhaust diameters, and combustion chamber volume. 11/1. Passenger side casting#: 5 36 Below the To find where the Engine code/id can be found. E158 is a date code from either 1968 or 1978. 6 55-60 INT MAN 538177 61-62 389 62 D-Port 1. In 1967 Pontiac made some open chamber heads (i. They also do not have the machined land where the code number would be and I am looking at a few different charts about cylinder head volume and was looking for some solid advise. If you’re a classic car enthusiast or a Pontiac owner looking to restore or upgrade your engine, knowing how to identify Pontiac heads is essential. You must find the date code at the back LH side of the block first. Sep 23, 2006 · Ron's Pontiac Page: Stock Pontiac Head Specs 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. Wallace racing site lists a #94 and a #96 cylinder head (1971 350 -94 1971 400 -96 ) both as having a 96 cc volume. The letter is the month, next 2 digits are the day and the last digit is the year. After 1967 the heads were open chamber heads. Ron's Pontiac Page: Stock Pontiac Head Specs Pontiac head ID codes are cast into the heads on top of the 2 center exhaust ports. The first digit will be a letter. Ron's Pontiac Page: Stock Pontiac Head Specs Classical Pontiac Engine Codes If you know the code number, try my new head search Chart to mill Pontiac Cylinder Heads Pontiac made closed chambered heads until 1967. This Page Last Updated on: Saturday, September 23, 2006 11:14 PMspan> Pontiac blocks are interesting power plants that are often misunderstood and improperly identified by sellers and buyers alike. They can be quite confusing. A list of block casting numbers is located < click here> I'd like to identify the year cylinder heads on my 65 GTO. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass. more Pontiac used a three or four digit date code on the block, heads and intake. Engine Unit Gotta use the head ID code on the exhaust center ports to confirm it. Go here to verify: Pontiac Head Search of Wallace Racing Home of Pontiac Powered Firebirds,Trans Ams,Pontiac Powered Dragsters,Pontiac Power Rules! Search for Pontiac Cylinder Heads As You Go Thru Life DO A WHEELIE !!! You Searched For: 165 Matches Found (displaying 1 to 25) Engine Block Codes Pontiac engines have block code. My thanks to Erik Moore for the concept and research. These are the open chamber, big valve heads. Head specifications are listed by year, with multiple engine options specified for some years. Pontiac 400 428 455 Engine Codes This is a quick block ID for junk yard hunting, etc. In 1967 Pontiac made some open chamber heads (i. In 70 they cast a, 11, 12, 13, 15 and 16. These have been magnafluxed. If you came here from a search engine or are not in a frame,click here. Explore GTO head casting codes and their applications for various models. Fill in the appropriate blanks to narrow your search. they are stamped 092 with a casting date of J45, which I think is Oct 4, 1965. Also, 2. Where to find the Casting Code: Casting codes for 1955 to 1963 are Pontiac heads have their casting codes stamped on the center exhaust ports. 88/1. Looks like "16" maybe? In '69 there was no ID code that started with a 1, so your '70 theory may be working here. See Chart Below for actual codes. However the cylinder heads do not appear to have any markings on the center exhaust port. PONTIAC Cylinder Head Codes This page is part of a frame page. Starting in 1965, Pontiac heads will have numbers on the center 2 exhaust ports. Excluding the Ra Comprehensive guide to identifying Pontiac cylinder head ID numbers and decoding their applications. The have the GM on the other end port of the head. Pontiac Events Read how to compare common 70's smog heads to find the best performers for your Pontiac engine, brought to you by the experts at High Performance Pontiac Magazine. The date code, L017, breaks down as follows: December 01, 1967. This motor has 061 heads on it. The first is a letter corresponding to the month, the second digit and , if present, third digit correspond to the day of the month and the last number represents the year. Get the code off the exhaust ports and I can tell you exactly what you have. PY Online Forums - Bringing the Pontiac Hobby Together > Classic TECH- specs, codes, resto issues FORUMS > 70-72 GTO Tempest & LeMans TECH > #51 head code I bought a 65 GTO that had a 67 400cu in motor but was upgraded with the 65 tri-power . OK. The head code 9780562 was only used for a 1965 326 engine. Next to the distributor hole there is a casting number that has a letter with 2 or 3 numbers. W = Manual transmissions, Y and Z = Automatic transmissions, and X for both. The block casting number, 9790071, is for a 1968-1969 400 engine. The first question is the ability to distinguish between the two types of heads. . The first digit of the code indicates Manual or Automatic transmission. Chamber volumes ranged from 65 to 114 cubic centimeters depending on the engine Pontiac Codes Searches On the top right of page is a Menu button for list of all links () Pontiac Search Codes Pontiac Axle Search Pontiac Carb Search Pontiac Engine,Head,Carb,and Cam Code Search Pontiac Head Search Pontiac Intake Search Pontiac Distributor Code Search Pontiac Alternator Codes Search Distributor Number Search Alternator Number Search Pontiac Starter Numbers Pontiac Bore Sizes PONTIAC BLOCK CODES '64-'79 Year CID HORSEPOWER Code 1964 326 280 HP 94x,970 389 230 HP 04L,05L,08R,09R 389 235 HP 22B 389 267 HP 11H,12H 389 283 HP 10A 389 303 HP 25K,26K,27P,28P 389 306 23B,29N 389 325 78X,79J 389 330 32B,34N,33-6 389 348 76X,77J 421 320 35B,38S,43N 421 350 44B,47S,49N 1965 326 250 WP,ZN 326 285 WR,YP 389 256 WA,WB,YA,YB 389 Distributor part numbers 1950-70 page 3 Distributor part numbers 1950-70 page 2 Click HERE for more scans Pontiac head code links: Since I don’t have head code info, here are some great links: Bill Boyle’s Pontiac Street Performance Geebjen’s Pontiac head info Wallace Racing Head Chart Hi, Looking for help understanding what some numbers on my heads mean (if anything). Here is what I know: #16 casting number F288 date code on both heads (June 28, 1968) 2. This code will tell you the year it was to be used. The have a 62 on the end port of the head not on the center two ports. However, these codes were used for more than one year and could have different machining or even different main caps. Together with the casting code and casting date you can determine where what the engine is. The engine block casting code, date and production number are correct and are verified by the Protect-o-Plate. If you have questions please direct them to the Q & A. Need to quickly decode Pontiac blocks and cylinder heads? We show you how in less than 60 seconds. 11 intake valves and 1. Alphabetize by year Group by Engines Home Pontiac Head Codes BACK Pontiac made closed chambered heads until 1967. The block code is VX, and research told me that it is a 290hp motor from a Catalina. Pontiac made closed chambered heads until 1967. Pontiac engine identification numbers, including engine codes, block casting numbers, and date codes, help determine an engine’s originality, displacement, and production year. Head Codes Pontiac heads have their casting codes cast on to the center exhaust ports. 66 valves and a 101cc chamber. In 1975 Pontiac started stamping extra numbers (1/4" tall) on their heads. The letter is the month of manufacture- A=Jan. Starting in 1965 Pontiac began using a 2 digit Indian Head Code Database 1960-1979 Use this form to find Pontiac head information. Can anyone help me? The first set came off a big Pontiac 389 4v engine. The date code is a 3 or 4 digit code. The date code of K24 translates to October 2, 1964 which would be for the 1965 model year. The 1962 and 1963 Super Duty engines would work well also. xyvk, ima0, zgey, kqw7b, iaix, yayo, vjqi, e1cd, 9qhae, xqp4e,