I recently got a block and they came with a set of pistons and rods. The pistons are flat straight across, so Im guessing theyre gonna be around 10.5:1. But the seller didn't tell me what the bore was on the block. I tried looking up the specs, but I couldn't find anything. I was gonna wait til tomorrow to contact them, but I figured I'd post on here and ask first. Underneath the skirt it has the number 351849. I went on arias's site and all the piston part numbers started with 33


Can anyone help me figure this out?

 

measure the bore? just a thought......