Originally Posted by stevenm357
GM has always given it's consumers the most interchangable parts on the market all of their engine blocks and trans housings bold up in trucks. parts swap over insanely easy.... that's what made Gm #1 for so long.
They have many engine configurations... very similar blocks but many different parts that go on to make the long block
Here's a bit of trivia. GM has used basically the same bolt pattern for the bell housing for EVERY V8 (small block) and V6 since something like 1958? It's the standard pattern and Cummings diesels (4bt) use that pattern for their adapter plate in the Frito Lay and Wonder Bread box vans.