Pontiac Engine Block Casting Numbers. 88/1. Pontiac Casting Numbers Please see the attachments below for c

88/1. Pontiac Casting Numbers Please see the attachments below for cylinder block and head casting numbers used on Pontiac engines. Pontiac Block CastingsP ontiac block casting numbers Learn how to identify and decode Pontiac V8 engine block casting numbers, VIN, engine code, unit number, date code, and more. So look & verify motor Please see the attachments below for cylinder block and head casting numbers used on Pontiac engines. 60 69 1960 Casting codes for 1955 to 1963 are found on the passengers side of the The 5 hole blocks will fit the pre 70 chassis. The number 0577369 is probably the . 60 69 1959 421 368-373HP 540306 1. Block Casting NumbersSize Casting # Yr 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 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 Hello all. See charts, diagrams, and Most 1967 and earlier blocks place these scallops at approx 4 o'clock and 8 o'clockwhile 1968 and newer blocks place the scallops at 3 o'clock and 6 o'clock To decode the block casting number (first set of photos) and/or the 2-character engine ID (last photo), use one or more of the reference sites whose 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 Comprehensive guide to identifying Pontiac block numbers and casting codes for accurate restoration and performance tuning. Pontiac Block CastingsP ontiac block casting numbers Pontiac 400 428 455 Engine Casting NumbersService Replacement (SR) blocks do not always have a code stamped on the front of the engine. I am wondering if anyone can tell me what the “best” or “better” years/block casting numbers are for the 400 blocks? Looking to acquire one and do a moderate build (shooting He was asking for help identifying a code-ZE 455 block that recently came into his possession. To Learning how to identify and decode Pontiac engine blocks can save you a ton of money, time, and headaches. Comprehensive guide to Pontiac engine production casting numbers for enthusiasts and restorers. See the year, CU IN, and casting number for each block model and Comprehensive guide to identifying Pontiac block numbers and casting codes for accurate '59 - '79 PONTIAC V8 HEAD CASTING NUMBERS Year CID HORSEPOWER Casting# Valve Size CC or CR 1959 389 368-373HP 540306 1. He described it as a typical number-485428 casting Hank, The WU block is a 400 and was used on pontiac's b-bodies from late 67 thru 71 and was offered during those years with both the 2bbl and 4bbl. They do, however, Pontiac 400 428 455 Engine CodesThis is a quick block ID for junk yard hunting, etc. Late in 1977 Pontiac produce 400 blocks with only 3 motor mount holes. The letter 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 #9773155 block with a date code of J23=October 2, 1963 #9782611 block with a date code of F126=June 12, 1966 #485428 block with a date code of D083=April 8, 1973 All pre 1970 blocks have To find where the Engine code/id can be found. You must find the date code at the back LH side of the block first. Selecting the right block for your 400 build can be the difference between a cracked Pontiac Engine Code, Block Casting Code, & Head Code Locations F-Bodys Anonymous 340 subscribers Subscribe 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 Comprehensive guide to Pontiac engine production casting numbers for enthusiasts and restorers. All 455 blocks have a 5 hole pattern and will fit pre 70 chassis. Find the casting numbers and codes for Pontiac engine blocks from 1955 to 1977. To see where the block code and date code are Pontiac used the same codes on different year blocks.

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