Numbers on bearings
snr gb12399s01 France 01m

1 inch and 5/8ths of an inch is the bore width. thats the closest i can give you right now with out calipers.

PLEASE HELP ME GET MY CAR TOGETHER! ITS IN DAYTON OHIO! I need the motor together and in the car so i can DRIVE it! Pleeeeeese! diamond pistons for 3.0/forsale #702 of 2150