feeler thread for 340 engine

72Swinger360 said
If it is a 72 340 and all original, it will have the cast crank and the 8.5:1 CR pistons as all 72-73 340's had cast cranks and low compression pistons.

To the OP, post dates and part numbers of the heads as well because 72-73 340's should have the small valve heads and if your engine has the large valve heads they would be from a 71 or older motor but are still an added bonus. Joe

I did not see "original" in the post. Big valves are not original to the engine, and some 72s have forged cranks. Seeing as heads were changed, hard telling what else has been done to it. Why I was asking.