This Chevy 383 block engine is supplied with a 4 bolt main block of your choice; seasoned or new, 2 piece or 1 piece rear main seal design.
This part number is recommended for street use and premium pump gas with a compression ratio of approximately 9.5:1 with a 64cc cylinder head.
Tri Star Performance lets you customize your engine build to what you really want. Start by telling us what block to use. Next, look through the variety of options offered for each performance engine. Add what you want to make it your own.