[LMSRACER]

Originally Posted by GRX

Great job Larry. The pontiac community is all the greater because of your efforts.

If I may ask ... have you noticed if the casting variances you mentioned relate in any way to the foundry numbers? (GME, GM5, GM10, etc ...) Would make identification of desirable blocks in fully assembled engines much easier if true.

Well , I can tell you that the 5 Blocks that are here in the Shop have 5 Different Block Codes. GMC, GM1, GM3, GM7 & GM8.

I've concentrated on Block Dates, Casting Numbers and Applications. (Such as, 2Bbl. or 4Bbl., Low Performance or High Performance, Etc.)

I believe that in order to be able to determine a correlation between Block Castings and "Pontiac Foundry Casting Line Coding", that it would take a Large Number of Blocks with the same Block Casting Number and Different Build Dates. Then you could analyze the Foundry Codes to see if there's a trend.

I've never had enough Blocks with the same Casting Number to do that accurately.

If you get it wrong, then you may end up passing on a Good Block.

It is a Good Idea and It could be done with a combined effort on the part of the PY Forum Members.

Larry S.