What is a Chevy 350 engine bored 030 over called?
A 350 starts out with a 4.000" bore and a 3.48" crankshaft
stroke which really only gives you 349.8 cubic inches. (Chevy
rounded it up to 350)
Your engine which has the same stroke of 3.48 but now is bored
.030" over (making the cylinder bored size now 4.030) total size of
355.1 cubic inches or just a 355.