Engine question.
 

I have a 72 longbox I am just starting and was going to have the 350 rebuilt. My question is are these truck all equipped with 4 bolt mains or will I have a 2 bolt. My trans is a 350th. The truck has air also if that matters.

Thanks
Kev

Re: Engine question.
 

All of the 350 truck engines, (69-72) that I have seen have been 4 bolt main engines. Check the suffix code and block casting numbers to verify that the engine is an original 72 truck engine.

Jim