Hey guys.....quick question, if I have an 1985 305 block, and I want to swap for a 1994 4 bolt main 350, will I run into fitment issues such as alternator brackets, starter, water and PS pump, etc....or is everything the same???

Thanks for the Help!!!

 

It's all the same. Apart from oil pans and flywheels, anything that fits one SBC block will fit any other.

 

so you"re saying that the flywheel and oil pan from my 1985 305 small block is ''not'' the same as the 1994???

 

I can not comment about the flywheel but the oilpan should be different because the 94 engine is a one piece rear main seal where the 85 would be the old 2 piece style.

 

Yes, the flywheel and oil pan are different and will not interchange between the two blocks.

Although technically, the flywheel doesn't bolt to the block, it bolts to the crank.

 

'85 is a 2 piece rear main, has a large bolt pattern and a large end the flywheel bolts to . '94 is a 1 piece rear main, has a small bolt pattern and a small end the flywheel bolts to.