Hey Val360, do me and everyone else a favor and post up some pics of your car! From what I can see in your profile pic that color looks killer!!!
Some 318 blocks I've bored to 4.00 -4.040I have tested about 5 x 318 and 5 x 360 blocks out here in Oz and havent had much luck with finding a decent 318 block. The worst 360 block i sonic tested was better than all of the 318's tested,not sure what everyone else experiences have been.
I have a 318 block with 3.58 crank and overbore to 4.00 running for the last 10 years. this engine produces 446WHP, 12.0:1 compression ratio.