pontiac 455 casting numbers Year: Engine (cid) Casting Number: 1955: 287: 518037: 1956: 316: 521560: 1957: 347: 523293: 1958 There's no numbers or other identifying marks on it. 66 head stamp location on pontiac heads. All the head casting charts I have, do not show this number. We have all the parts you need for your S/B 330-350-403 or B/B 400-425-455 Oldsmobile no matter what power level you wish to accomplish. It is likely also one of the best, said Jim Taylor, the legendary Pontiac engine builder from Phillipsburg, New Jersey. For '71-up the timing cover timing tab is marked from 4 degrees ATDC to 12 degrees BTDC and is graduated all the way to 16 degrees BTDC. Has two pitted cylinders. olds casting numbers. They are a 64 casting number which is for 455 H. yz 370 wh,ww xn,xp 455 360 wa yc,yh 370 wg xf 1971 350 250 wn,wp,wr,wu yn,yp,yu,xr 400 265 ws,wx yx,xx 300 wk,wt ys 455 280 wg yg 325 wj yc The block casting number is also found in this area on most 1964–1967 castings. Casting number is located below ignition distributor (Dist). Main bearings are not used by The SD-455 was produced in such small numbers that Pontiac had a hard time sourcing some of the engine components when new, meaning that finding some original pieces now is harder than finding a Red Sox fan in the Bronx. It has all the parts to assemble complete. 11/1. “455” stamping on Would you like to make this site your homepage? It's fast and easy We could go into a lot detail about other components and various casting numbers for intakes, exhaust manifolds, and more. 683), for 1964 64 1965 65 1966 66 1967 67 1968 68 1969 69 1970 70 1971 71 1972 72 1973 73 1974 74 1975 75 1976 76 1977 77 and 1978 78. 7cc for head gasket, 2cc ring area, and 7. Some 400s and 455s are 4-main engines, depends on the year and vehicle it was going into - so you have to pay attention to the casting number on the block to determine the 2 vs 4-bolt 400s and 455s. O. R. In 1973 Pontiac started stamping extra numbers (1/4" tall) on their heads. C. There is one exception to this rule. KRE 1964-1968 Pontiac Aluminum Timing Cover. Other components such as 1968-1969 455 C 394548 D Firebird Exhaust Manifold Flange Set, 1 - Two Bolt and 1 - Three Bolt, Pair New factory style exhaust manifold flange set for your Pontiac Firebird or Trans Am. We have 117 cars for sale for 455 pontiac engine, from just $5,999 - Page 3 REMFLEX EXHAUST GASKETS are extra thick as well as soft and compressable. However, I have a few questions. Engine bore & stroke chart. The casting code for late 71-72 455-H. The SD-455 was produced in such small numbers that Pontiac had a hard time sourcing some of the engine components when new, meaning that finding some original pieces now is harder than finding a Red Sox fan in the Bronx. San Antonio Pontiac Club. Beginning sometime in '68 Pontiac began stamping the last eight digits of the vehicle identification number (VIN) on the engine block. SD-455 prices rose sharply, along with most Trans Ams, as 1980s high-school grads finally started buying their dream machines. All 455 blocks have a 5 hole pattern and will fit pre-70 chassis. blocks is 485428. The TAW team couldn’t possibly be prouder. The 455 is a member of Oldsmobile's V-8 engine class. Complete Pontiac Tri-Power Setup (Limited) These new complete units include the aluminum intake manifold, air cleaners, center and end carbs hard and soft fuel lines with fittings, clamps and filter , throttle linkage bracket & spring, choke components, thermostat housing, carbs mounting bolts and all necessary gaskets. This head is designed for Pro Stock and similar all-out racing engines which YEAR: APP. But the SD-455 is a whole new breed of car, not just an engine. 1970 Pontiac 455 V8 Auto If you have a true collector car than you know that correct part numbers and date codes make all the difference with the value and Buickgod. 1969 400-455 442-H/O Exhaust Manifolds with heat riser 1969 Oldsmobile Cutlass, 442 and Hurst/Olds 400-455 V8 Exhaust Manifolds with correct casting numbers and letters. Rochester used the same casting for several carbs, then machined them for specific applications. manifolds is available from a number of sources. The advantage of this casting design is a significant drop in weight over the other 455 versions. Pontiac Motorsports' aluminum cylinder heads for big-block V8s have high- flow 460cc intake runners which are raised and relocated to enhance airflow. Through the years, Buick made numerous sets of heads for the 400, 430 and 455 engines. blocks is 483677. 1970 Transmission Identification If the transmission is original, the 'Transmission Serial Number' ( figure T1 ) should read 9 digits - a '4' (for Buick), followed by the last 8 digits of the VIN. A 428 engine shares the 4. Just castingflash and machined to cast smoothed. Similarly, a 421/428/455 share a 4. Answer . RA IV for 1969 casting # 722 and RA IV for 1970 is casting # 614. 1955-1958 blocks had no side motor mounts, they used a mount under the timing cover All blocks prior to 1964 had the casting number on the passenger side of the block. I haven’t been impressed with the quality for performance use, the machining process leaves behind many sharp edges internally and plenum volume is reduced. Description for Pontiac GTO 1971: Up for auction is a 1971 Pontiac Lemans Sport, with Gto Enduro front end, with 455 engine. I'm pretty excited, as I finally have been able to find a Pontiac 455 for sale in my area. great for the Pontiac 455 top end as well Blocks with these casting numbers were used in certain 1977 Buick Station Wagons built in 1976, the Pontiac Bonneville with tow package, the 1979 Pontiac Trans Am with tow package (w/block casting #554990-4A), and in 1977 Olds 98's. 00 inch stroke. Serial number is located by fuel pump on 29 - 37 engines. Pontiac rated the SD-455 engines at a stout 310 bhp and 390 lb-ft, but experts agreed that it was closer to 370 bhp. 1970 Pontiac 455 V8 Auto If you have a true collector car than you know that correct part numbers and date codes make all the difference with the value and These are casting numbers for the floatbowl section. Needs rebuilt. 79's was the last year of the 400 and 76 was the last year of the 455. year: code: c/i: hp: tran: carb: car: misc: 1962: 13b: 421 : 3 m: 2 x 4: full: super duty: 1962: 13u: 421 : 4 m: 2 x 4: full: super duty: 1962: bu: 421 : 4 m: 2 x 4 True Pontiac engines were made by the Pontiac Motor Division. • Note: The casting number for service replacement heads was 1240149. Hence; a 36 block #836010, has a full water jacket, Dipstick and oil filler on left and Serial number by fuel pump. yz 370 wh,ww xn,xp 455 360 wa yc,yh 370 wg xf 1971 350 250 wn,wp,wr,wu yn,yp,yu,xr 400 265 ws,wx yx,xx 300 wk,wt ys 455 280 wg yg 325 wj yc Buickgod. Engine block casting numbers. Z-bars (countershafts) Turn signal switches. 6500 Bowden Road, Suite 300 Jacksonville, Florida 32216 Local: 1-904-636-9400 - GM 9796625Both sides of the block have cast numbers "400"Lifter Valley cast code is O/O = 400Other Code Casting ID marks GM-6 D { N Date code casting number 1231All factory boltsThis Pontiac Ram Air IV block has beencompletely cleaned and tested for cracks by a highly reputable automotive Early (1961 to 1979)Pontiac V-8 engine parts and engine building. In 1975 General Motors painted all engines corperate blue. V-8 debuted in 1970 and was the largest displacement Pontiac engine ever built for the street. 030-over 400 block, you end up with a standard bore 455 on 3-inch mains. For the most part, even numbers were used on automatic transmissions, and odd numbers on manual transmissions, but there were numerous exceptions. 38 GENERAL MOTOR CORPORATION The following information should generally enable you to identify the make or manufacturer of GMC 350 or 455 C. This is to match the casting number in the table above not to be confused with the 60s. Each intake features the correct casting number and "W" snowflake logo used by the Winters Foundry that produced the originals. Motor mount holes Ok, this is'nt easy, but check out the number of drilled motor mount holes on the block. Casting numbers are part of the component and are raised above the surface. head, while “13” is a 1970 330-horse (Firebird) or 350-horse (GTO) 400 head. RA IV casting numbers now available upon Request! LH requires 2 bolt flange, RH requires 3 bolt flange (sold sererately) From 1965 to 1967 the serial number identification plate was attached to the left front body hinge pillar directly below the upper door hinge. 6: 111: 543796: 2: 64: 215: 389: M: 02B: 8. "Ready to Assemble" All Machined,forged pistons,rings,oil pump,bearings,gaskets,etc. D. History Based on fact, rumors, internet stories, and my vague memory; The history of the ST-10 transmission begins with the Borg Warner T-85 3-speed which was the basis for the Borg Warner T-10 4-speed first used by GM in 1957. They are notoriously very hard to read and often people make the mistake of thinking a '3' is an '8'. Every Pontiac head has a casting number on the head. All Pontiac V8s the same dimensions. This item has been shown 3 times. If the chamber volume is increased, the C. Pontiac engines were last produced and used in 1981. Hello all. Price: $711. Block casting number. 57 + head cc (assuming 6cc for valve relief, 9. Some have a long string of numbers, some have 2 or 3 numbers, and yet others(low compression, large chambered from the '70s) are alphanumeric, a number or two and a letter cast into the head. You can click the thumbnail image next to each description to see an enlarged view. \nIn 1979 Pontiac did not make available any 455 (cubic inch) engine. It indicates that this block is a 1967 400. Pontiac engine blocks cast in 1967 through the last casting in 1978 have 3 freeze plugs on each side. The block casting number is located on the right side (passenger's side) of the engine block below the cylinder head surface and identifies the model year for the engine block. The casting numbers are on the outside of the head. Identifying these engines is relatively simple if the casting numbers on the engine block are intact and legible. Casting Numbers Engine Make 260 4. Flow numbers were obtained using 4. 87 for deck height volume) *blocks are assumed to have a . 00 each *** Note: Core charges will vary, depending on casting number. The number are about ¾" high, and oriented to the right (passenger) side. Pontiac Crankshaft Casting Numbers Feel free to contribute or email us with any corrections or additions you may find. Water pumps. 755" in diameter. Stock heads / stock valvesflowed @ 28" H2O 6X-8 cleaned up heads are unaltered ports. The casting code for early 71 455-H. The new 455 Trans Am Super Duty is a powerful, beautiful, and ultimately rare vehicle; a work of art in its design. Pontiac engines were available in many different displacements, ranging from 265 CID to 455 CID. I am selling a set of used 1970 pontiac cylinder heads. From stock to the highest torque monsters on the planet, these guys will give you the best advice and proper parts selection to meet your goals. ), engine code is: 485428. The original part number for this housing is 230727 and will have the casting number 39413 or 394139. ) on a Pontiac is a function of the chamber volume and the engine displacement. Casting codes for 1955 to 1963 are found on the passengers side of the block. Pontiacs sold so well that the Oakland line was canceled within a few years. sure its 7J2. The block casting number is located on the small "shelf" above the water pump, next to the oil fill tube. This first is the typical collector who is trying to identify a component by Chevrolet casting numbers, which may be in a salvage yard, at a swap meet, a friend's cache 260-307-350-403-455 Gas and Diesel 65-85 passenger car & Tr. We can also drill and tap missing exhaust bolt holes for $5. 5 1970-1971 1237661 Find Pontiac at the best price. Includes heat riser in driver's side manifold. . The letter is the month, next 2 digits are the day and the last digit is the year. This number was usually the casting number, or a portion thereof. This information was taken from a Pontiac Master Parts Catalog dated 11/69. This level of engine ratings were unheard of in an era when other manufacturer’s engines’ output were falling dramatically, and the Firebird became the only true performance car remaining in the market. Casting codes for from 1964 to 1967 are found on the distributor pad, except the 421′s Casting codes for from March 1967 on are found on the rear of the block just behind the number 8 cylinder The block casting number, 9790071, is for a 1968-1969 400 engine. The date code is located next to the distributor mounting boss. *Denotes Over-The-Counter "Daytona" Package. This is a work in progress and not guaranteed to be correct. 040. The cylinder heads topping the motor were again of a new casting number, the 4X. designation from the engine, and simply badged the shaker with 455 engine calouts. Filed under Pontiac Engine. For carburetors produced from 1970 to 1974 , the first three numbers are “ 704 ” followed by the same sequence of numbers as the “702” series of carburetors. They are usually stamped on the machined pads by the valve covers. HORSEPOWER! AND WE KNOW MORE ABOUT BUILDING STOCK PONTIAC ENGINES THAN ANYONE. the first 5 numbers of the VIN are 23737 (Lemans Sport, 2Dr Hardtop). 2=Pontiac - V=Trans Am or U=Formula - 87=Hardtop Coupe - X=Super Duty 455 - 3=Model Year 1973 or 4=Model Year 1974 I always glance at the fifth digit first, which should be an "X", then I go from there. Pontiac made it easy to know what is sitting between the fenders of your Pontiac or on the ground at the local salvage yard. . The Casting Numbers to the right are found just below and to the right of the Distributor on the passenger side. The seller says the engine is a 1971, YC 529126 or YG 529126 (I could not find the 529126 number researching. V8 OLDSMOBILE & DRCE BIG-BLOCKS GROUP 0. We have 117 cars for sale for 455 pontiac engine, from just $5,999 - Page 3 Sales Department Open 9 am to 6 pm EST Monday - Friday; National Carburetors, Inc. These numbers can be found on the side of the carb main body next to the throttle lever , 1965 to early 1968 was a round disc 1968 and later ones where stamped into the body on quadrajets If the date code under the number is 4 numbers "1938" like above it was produced by Rochester Pontiac 301-350-455 V8 Torque Specifications. Generally, the rule is that early heads can be used on later blocks but later heads will not fit early blocks. Buick Century Custom specs: 1975-1977 Buick Century Custom specs: 1975-1977 The Buick Century Custom replaced the Buick Century Luxus for model year 1975. REMFLEX gaskets fill voids on warped header flanges and exhaust manifolds. While the number-96 R/A II casting contains an intake port that’s nearly identical to the number-670 D-port, and subsequently flows around 210 cfm, the intake port volume of the R/A IV, 455 H. in. Main bearings are not used by ** Please note: There is an additional $150. 010. com Network has over covers all of Buick Makes and Models over the past 100 years. click image for larger view ** Use sheet stainless steel block off plate. ive ben try'n to find some better heads so far ive only seen 2 Pontiac's with the engines still there in the 4 years ive ben searching the pick-n-pulls 1 had the 389 with the 092's an the 75 trans am with the 6x-8's there was a firebird but it had the same heads as mine Some have the casting number of 9773762-1, while other sport the number 9776383. It will be the last 8 characters of the VIN and will tell if the engine is the one which came in the car. NEW: The following are scans from a Pontiac Parts 1973 Pontiac 455 XE Code Block $1100. Choose one of the categories below to narrow down your search, or scroll through it all if you want to browse. 519A CAMSHAFT The code consisted of a "2", designating a Pontiac engine, followed by the model year (0=1970 etc), the assembly plant code (U=Lordstown, N=Norwood, L=Los Angeles, Van Nuys), and the vehicle serial number. Cylinder head casting number is 66. great for the Pontiac 455 top end as well 1971 Pontiac Trans Am 455 HO with 4 Speed Transmission (Lot #2049), this car has matching date codes, casting numbers and engine numbers. True Pontiac engines were made by the Pontiac Motor Division. 455 SD N/A: 63: Nut, rocker arm to stud (3/8″) Casting Numbers. By using a standard bore 455 piston in a . 020 now should clean up at . Parts, Motors, NEWLY ADDED PARTS. Over 800 Buick Related Links for Parts, Owners cars and much more. The engine serial number will also be stamped on the block somewhere nearby. Pontiac came out with tripower in 1957 and produced them until 1966. Year: Engine: Cast Code: Casting # Part # Stud Type: Intake: Exhaust: Volume: 59: 389: 531395 Numbers on the crank are often the same as the part number, but not always. 6: 111: 543796: 2: 64: NA The iinformation I have show that casting number to be a 455 block with multiple uses in the early 70s. RECTANGULAR PORT - Valve size 2. wear are the casting numbers on the 455 heads located and what is the differance in the numbers from the heads with the 1. 2. 6 55-60 INT MAN 538177 61-62 389 62 D-Port 1. This engine was placed in a wide variety of Oldsmobile's vehicles for a period of nine years. Casting number required Replaces Casting Numbers 380001, 393185, 403453, Pontiac, Sprint 267-305 This is a Used Original Buick/Oldsmobile/Pontiac Die Cast Aluminum Bell Housing, (Bellhousing, Clutch Housing), (GM Part Number 9785581, GM Group Number 0. NOTES: 1967: 400 2bbl/4bbl: 061: 2. 455 Head Comparison: Regular 455 head, Stage 1 and Stage2 heads. This cylinder head was also used on the 400 engine available on other Firebirds. 250” bore. Bore Vin# Description Short Block Complete Block Casting Crank Forging Head Casting Crank Kit No. This is the new KRE 1964-1968 aluminum Pontiac timing cover! This Pontiac timing cover is made by precision sand casting 356-T6 aluminum and comes with the following features: Original casting numbers on Manifolds: LH 490803, RH 490802 Exact Reproductions from GM blueprints. Stored in garage for 10 years. Pontiac Trans Am, 1974 numbers matching 455 Y code car, auto, rebuilt engine & trany, interior like new, Paint is near perfect, car is super solid NO rust, all original body panels, doors close like new. The '68 timing cover casting number is 9790347 and uses the 8-bolt water pump. It has a complete listing of casting numbers for Pontiac S/D, Oldsmobile DRCE, or Chevrolet bolt patterns. From 1968 to 1971 it was attached to the top of the instrument panel on the driver's side and is visible through the windshield from outside the car. PONTIAC: 1960-61 - 1962-63 - 1964 - 1965 - 1966 - 1967 - 1968 - 1969 - 1970 - 1971 - 1972 - 1974-1975: 1973 engine is the primary v 8 used in general on all 2001 ls1 6 engines the casting number super duty 455 cid pontiac v8 engine chevy casting number identification The code consisted of a “2″, designating a Pontiac engine, followed by the model year (0=1970 etc), the assembly plant code (U=Lordstown, N=Norwood, L=Los Angeles, Van Nuys), and the vehicle serial number. The visible digits in this example are what remain of the original “9786133” after machining. year & factory application 75-76 455. Engine Size: Description: TCA-258: 258: Casting # 3225184: TC-360K (New CNC machined heart shaped chambers with improved spark plug location!!) This package is designed to give the absolute most bang for your buck, SD gives you more for less$$$, no one offers this much cylinder head for the same money. 3 1980-1981 65 Pontiac 301 4. Rod bearings are the same as those used in Pontiac 326 cubic inch to 455 cubic inch motors into the 1970's. Exact fit for all models that need 1 - Two Bolt and 1 - Three Bolt. The area above the two center exhaust ports was a popular location for the casting numbers. 25" main journal diameter Note: 265 and 301's have a 2. Tomahawk intake, Technical info. - The Pontiac 400 V8 engine that we're using in our 1969 Firebird project called "Routy" came to us completely as a rebuilt long-block with all new parts inside, but we were charged with the task Static compression, (C. First off - 350 Pontiac heads will fit a 400 and 455 Pontiac V8. A blue 455 is generally considered a more desirable motor to build. Man Number Cid Year Bore Mains Notes ; 1: Buick: 1169334: 322: 1956-59: 2 “Nailhead” 2: Buick: 1172889: 401: 1960: 2 “Nailhead” 3: Buick: 1173201: 364: 1957 Please enter your crank's casting / forging number in the Additional Information box below when checking out. REMFLEX gaskets are good to 3000 degrees. This particular 1926 Pontiac is part of the General Motors Heritage Collection and was the first Pontiac ever produced. 519A CAMSHAFT and rear ends have casting numbers. Pontiac 400 428 455 Engine Codes This is a quick block ID for junk yard hunting, etc. Read about our Crankshaft Core Policy Availability: Out of stock *Pontiac 455 compression area = 25. 5 1970-1971 1237661 Pontiac removed the H. My Buick 455 one has multiple holes drilled for different sizes/types of clutch sets. Cars & Parts Catalog of Chevrolet Engine Casting Numbers 1955-1993 and Stamped Numbers. 88 exhaust 2-door coupe 2-door sedan Convertible Tri-Power 389 4-bbl Manual transmission Automatic transmission Total Production: 55,722 8,319 11,311 20,547 54,805 56,378 260-307-350-403-455 Gas and Diesel 65-85 passenger car & Tr. • The Stage 1 heads share casting numbers with the 455 heads, but contain larger valves. s and grind off extra one off depending on the application. Both heads have the same casting number. 455 applications—all manifolds will work on 1965 and up 350-455 engines. As you can see in the diagram at right, the number is behind the lower radiator hose next to the timing chain cover on the front passenger side of the block. wITH A CASTING DATE OF L129, maybe they mated for the 1980 production run. JUSTA was correct, tri-power was not an option for the 428, nor was there an H. The casting code will help determine what the block is. Cleaned, magnafluxed & ready to ship. ** Please note: There is an additional $150. Pontiac Exhaust Manifold Identification We have put together a collection of photographs and descriptions to help you identify parts for your Pontiac. I. I have a 400 in the shed with 7J2, or possibly it says 712. The 455-cu. Unlike this time and our European cars, a Pontiac wasn't necessarily motorized by PONTIAC engine, and all displacements combined, there was also Chevrolet, Buick and Oldsmobile engines on the second generation firebird. pete78, the YH code is not the date code. Bearings must be installed in the engine and measured prior to grinding the crank to get clearances right. The casting code was also 485428 for the 455's (non-SD) for both 73+74. 9 1977-1980 455 7. However, these are all searchable online or can be found in Mark Allen’s booklet, Pontiac V8 Engines Factory Casting Number and Code Guide 1955–81, which is available on Amazon or eBay. With 1969-70 manifolds being correct for Ram Air IV 400 engines and 1971-72 manifolds being correct for H. 400 V8 , the engine serial number is located on the machined face of the cylinder block, below and in front of the right-hand cylinder head. Here is side by side comparison of 1970 455 heads. Original casting numbers on Manifolds: LH 490803, RH 490802 Exact Reproductions from GM blueprints. Then along came a 1976 Pontiac Bonneville. 70-73 blocks are stronger than 74-76. The '69-'70 timing cover casting number is 9796346 and uses the improved 11-bolt pump. Pontiac Cylinder Head ID Numbers Service Replacement (SR) blocks do not always have a code stamped on the front of the engine. Pontiac fanned the flames with a black-and-gold Trans Am and SD-455 show car, while participation in the Cannonball Runs gave it hip credentials that ad agencies could only dream of. These heads are largely interchangably. Thanks Don for the info. The largest available was a 400 4bbl in the Pontiac Trans Am (220 net horsepower). Pontiac 400 428 455 Engine Casting Numbers; Pontiac Cylinder Head ID Numbers; This is a quick block ID for junk yard hunting Pontiac engine blocks cast in 1967 through the last casting in 1978 have 3 freeze plugs on each side. , and Super Duty 455 was increased at least 170 cc, and even more depending upon the application. by George Nenadovich. Replacement cranks may be a different part number or casting number than what came in the original engine. pontiac block codes. For Sale page! Take advantage of the (my) crummy economy as I put up core engine parts 1971 Stock Pontiac 455 engine out of Catalina or Bonneville. 120-inch bore of a 400. 120" in diameter and the 1. option. We have 17 cars for sale for 455 pontiac engine block, from just $6,900 Through the years, Buick made numerous sets of heads for the 400, 430 and 455 engines. 030 over bore and heads cut . The code consisted of a "2", designating a Pontiac engine, followed by the model year (0=1970 etc), the assembly plant code (U=Lordstown, N=Norwood, L=Los Angeles, Van Nuys), and the vehicle serial number. 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. Here’s to hoping GM will take serious notice and possibly reinvest in the Pontiac brand. A cast-aluminum reproduction of the original R/A IV and 455 H. casting number . Complete New All Machined 455 Pontiac Engine. So look & verify motor mount holes depending in what chassis you are installing the block in. Block/Head casting numbers, in addition to carburetor/distributor numbers can be found Here. 6500 Bowden Road, Suite 300 Jacksonville, Florida 32216 Local: 1-904-636-9400 Olds 455 – 68 – 191 -396021F – 4 Barrell. There are two basic chevrolet casting numbers identification needs that this book serves. 88/1. Part No. Going by casting number sequence alone, it would seem to dictate that for whatever reason, 64 bellhousing have these two numbers. 00 gears, but because these models used larger carrier bearings, the housings were machined accordingly and therefore required a different part number . Buick Olds Pontiac ive was looking up head cast numbers an found the 76 6s heads that are on my 73 400 are only given me some were in the 7. “7F6” is the code for a 1972 455 H. These head numbers represented chamber sizes. I just so happened to have just the manifold to copy their design. It was called the W72 high performance package. Custom-Ported Pontiac Cylinder Heads: At Nitemare Performance, we only build and modify pure Pontiacs with traditional Pontiac engines — the legendary 326-455 cubic inch V8s produced from 1964 through 1980. Buick Big Block casting numbers for the 400, 430, 455 The information below reflects the research conducted by Pontiac enthusiast/ author Pete McCarthy, much of which is from his book, Pontiac Musclecar Performance 1955-1977, as well as information gathered from many other Pontiac enthusiasts world-wide. Find Pontiac at the best price. Casting number required Replaces Casting Numbers 380001, 393185, 403453, Pontiac, Sprint 267-305 block, heads, intakes, etc. The number is located near the front of the engine near the crankcase ventilator outlet on 40, 40A, 40B & 50 series, near the rear of the engine below the push rod cover on 60, 70 & 90 series. You must find the date code at the back LH side of the block first. Pontiac GTO, Pontiac Lemans, Pontiac Tempest, The best source for GTO books, GTO parts, GTO pictures, GTO links,production numbers and Vin Decoder Information about Classic Pontiac engines. In fact, the engine actually weighed close to 150 pounds less than the legendary 454 big block that Chevy used . or C. goes down; if the displacement is increased, the C. Frequently you need to scrape all the crud away to read it. The Pontiac Motor Division was an all-star in General Motors’ starting array of casting numbers can be confusing but a brief overview that Pontiac 455 Block San Antonio Pontiac Club. The intake valve is 2. | Pontiac: | 387 = Firebird | 487 = Esprit | 687 = Formula | 887 = Trans Am +-----> Carline Series 12 = Chevrolet Camaro 22 = Pontiac Firebird Back to top of 1970-1971 VIN Back to top *Pontiac 455 compression area = 25. 1946 - 1947 - Stamped on a raised boss on the right side of the engine below the push rod cover. NEW: The following are scans from a Pontiac Parts Tillbaka OLDSMOBILE BLOCK CASTING NUMBERS. Late in 1977 Pontiac produce 400 blocks with only 3 motor mount holes. 73's were rated at 250HP due to the restricted heads. Starting in 1959, the end carbs used were the larger based units, while the center carb remained small. Horsepower: Cubic Inches: Trans: Code: Compression: Cam: Heads: Carb: Year: 215: 389: M: 02B: 8. 5cr. Casting Numbers; Sales Department Open 9 am to 6 pm EST Monday - Friday; National Carburetors, Inc. Blocks 1949 - 1964 The casting number is located at the rear of the bell housing. The number is in the form AB123. The engine was optional in ‘73 and ‘74 on both Formulas and Trans Am’s. d-port. What aree they in comparison to the 6x heads,actually do have 3 400s,and 0ne bare 455, the first 400 i spoke of whipped everything on the street, sorry chevys, the other with the 6x ive never used, if the 6xs are better, my 82 TA is gonna rock, thanks for any info. Buick Big Block casting numbers for the 400, 430, 455 part # year: bbl: size: tran: notes: 7011350: 1957: 2: 347: a: tripower center: 7011351: 1957: 2: 347: a/m: tripower front: 7011352: 1957: 2: 347: a/m: tripower rear 70-72 455 had the higher HP numbers. 42 through 5. One of those listed is for an HO engine. 326 to 455, they all started out with the same. accueil engine code. RA IV casting numbers now available upon Request! LH requires 2 bolt flange, RH requires 3 bolt flange (sold sererately) Pontiac rated the SD-455 engines at a stout 310 bhp and 390 lb-ft, but experts agreed that it was closer to 370 bhp. Find Your Cylinder Head 10% off on all gasket sets with the purchase of a cylinder head. Motor mount holes Ok, I didn't say this was easy, but check out the number of drilled motor mount holes on the block. see chart below. Chevrolet Big Block Cylinder Head Casting Numbers. Posted in Misc. 3 1975-1976 550362 231882 Olds 265 4. goes up. The YH is the engine code that, along with the block casting number and the casting date, identifies the block as a 1970 Model Year high-compression 455 for full-size cars. block, heads, intakes, etc. My charts go through 1979. Rebuilding info, featured Pontiacs and engines, Restoration Bulletin Board. 231 V6, the engine serial number is on the front of the right cylinder bank 260 V8 , the engine serial number in on the oil filler tube on the front of the engine. 6"intake valves and the heads wit Pontiac for instance, introduced their new high performance engine package in 1977 Trans Ams, Formulas and select Can Ams. Find PONTIAC Exhaust Manifolds and get Free Shipping on Orders Over $99 at Summit Racing! Photo shows casting from Performance Years in foregroundOur casting, in rear, has correct port detail, overall head flange config is crisp & correct and correct pn type and position. They used the same block casting and just changed the bore and stroke to get the different engine sizes. This same housing was also used for the 1967-1968 models with 3. All 421/428/455 blocks have a "TRANSFER LUG" cast into the block near the distributor hole. 1973 Pontiac vehicle identification number (vin) decoder. "does that mean that they are all big blocks or small blocks" Take your pick, the terms don't mean anything when referring to a Pontiac block. high performance Pontiac engines, CNC cylinder heads and roller cams Pontiac Timing Covers . 77: 75: Pressed in studs - Unique open chamber: 1967: 400 4bbl RA I: 97: 2. This is a quick block ID for junk yard hunting, etc. 88 The 455 is a member of Oldsmobile's V-8 engine class. What Pontiac did was create a new casting number for their 400 engine block and added some nice pieces to improve the engine. Likely the single ugliest car I have ever seen in my life. However, with the installation of ARP rod bolts, proper resizing, beam grinding to remove casting flash, and shot-peening of the beams, factory Pontiac rods are reliable to approximately 600 horsepower, especially if engine RPM in the 455 is limited to 5,500. A 1968-76 350 block is 395558. 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. Not that the model is particularly ugly, but this specific example of that model was the worst. This is found on the distributor pad for 1964, 1965, 1966, and the first part of the year in 1967. Would you like to make this site your homepage? It's fast and easy We could go into a lot detail about other components and various casting numbers for intakes, exhaust manifolds, and more. Casting from Catalog Suppliers has poor detail, they also cast with 2 pn. Since all Pontiac engines must be considered a "big" block, the 455 is not new or unusual in the Firebird chassis. 00 charge to convert cylinder heads that have press in studs to screw in studs. AMC Top of page. In 1973, Pontiac released a limited production engine known as the Super Duty 455 (SD 455). Blocks with these casting numbers were used in certain 1977 Buick Station Wagons built in 1976, the Pontiac Bonneville with tow package, the 1979 Pontiac Trans Am with tow package (w/block casting #554990-4A), and in 1977 Olds 98's. CASTING: VALVES: C. Year CID Lit. They do, however, usually have a casting number. Add to cart. (New CNC machined heart shaped chambers with improved spark plug location!!) This package is designed to give the absolute most bang for your buck, SD gives you more for less$$$, no one offers this much cylinder head for the same money. 77 This is our first aluminum Pontiac head casting that we have brought to the marketplace. The engines were coded with many numbers and letters. In 1957 and 1958, the 3 Rochester carbs were all the small based version. GTO/Grand Prix with a casting date of B 26 0. 50" main journal diameter. This head is designed for Pro Stock and similar all-out racing engines which Although the video starts out with coverage of some of the other goings-on in the shop, we’re focused on the 455 Pontiac engine Nick’s got on the dyno. Engine can be turned by hand (it is NOT seized). This page will help you identify the year and size of your Pontiac engine. 400 428 455 engine ID. Chevrolet. 19 intake, 1. Second - Less cc's in the head give you a higher compression rati 2=Pontiac - V=Trans Am or U=Formula - 87=Hardtop Coupe - X=Super Duty 455 - 3=Model Year 1973 or 4=Model Year 1974 I always glance at the fifth digit first, which should be an "X", then I go from there. 6: 111: 543796: 2: 64: NA Oakland introduced the Pontiac in 1926 to complement itself. Note: 421,428, and 455's have a 3. A small block GM is a chevrolet. These are casting numbers for the floatbowl section. Pontiac stock manifold that flowed just about as well, or better in many cases, than many of the expensive aftermarket aluminum ones. Pontiac 400 428 455 Engine Codes. pontiac 455 casting numbers