3/18/2021 0 Comments Pontiac 400 Block Identification
Heres some helpful information on how to identify that block youre examining.The distributor hole is located on the rear deck of the block which allows for the easy intake removal without disturbing the distributor.
Pontiac 400 Block Identification How To Identify ThatWhile most Pontiac motors were painted blue, metallic blue or robins egg blue, color is only one of many clues and not one that can be relied upon to determine the Pontiac line. Pontiac engine blocks cast in 1967 through the last casting in 1978 have 3 freeze plugs on each side. Pontiac blocks with only 2 bolts holes per side were cast before 1970. Pontiacs engines were all 2-hole blocks. Blocks cast in 1970 to the last of the run had 5 holes per side, at least in theory. Some blocks, like this 400 thats in a 79 TA 6.6, is different (below left). These pads can be drilled and tapped if necessary to accommodate a different engine mount. So, if you have examined the rest of the block, you can easily ascertain the year the block was manufactured. ![]() Pontiac used two-letter engine codes in different years in various cars. In later years, Pontiac added a corresponding VIN number to the block. Whatever the case, you need to examine the front passenger side of the motor. If the VINs match, that determines the engine option from the factory. Pontiac engines began including VINs on blocks as early as late 1967. The third digit represents the assembly plant.the last digits match the sequence number of the cars VIN.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |