The engine is a 350 1996 one pc rear seal four bolt main with a windage tray.It was bought in a donor Astro van for my Ole Yellar project high top Astro.The seller told me it was a crate engine with 30,000 miles on it when he purchased it out of a chevy pick-up truck.I am wanting to turn it into a 383,but would not do so if it is already over by .030 or more.I don't own a dial-bore-gauge.I got the casting number off the piston I took out and it says it is part number 101282 and is a four eye brow with a notch towards the front.I did a google search and didn't find any info.Please help me find the size of that part number piston if you can.
Thank You,
Gary
