chevy 305 engines

[tinysastud2003]

did the engine specs(such as bore, stroke, main bore,ect) change between 1980 and 1986 for the 305 engine. does any one know the std bore for a 1980-84 305. i know that the 1986 305 bore is 3.736

[johnnynumfiv]

For specific ?'s like these, I would suggest going to a chevy forum.