Originally Posted by second 70
The Mopar is cast on the siamese bore block but not on the water mega block.

I wonder if the Chrysler star on the hemi block I posted and it missing on Doug's block where mopar is cast has anything to due to what year the blocks are or maybe it's a hemi wedge thing or someone just removed it from Doug's block????


Mine is siamesed and cross bolted. I am curious as to why the chart list the standard bore at 4.19"?

Brian