Thread: Ok Engine Building Experts/ 350 Chevy

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on a gm small block 350 you can have 001.5 to .003 you want to be at no more than .002.5 this will have alot to do with .the make of the bearings and where the housing bores on the rods the mains are at .i keep makers bearings that i use in stock and tq them up. i set the mic off the crank and set the bore gauge off the mic at O and put the bore gauge off the bearing that tells me the size for oil . were i am at. and i ajust from there. if you are telling me your on the lowside and.001 less on the crank you will need them +.001 for sure housing bore on the rods can be up to .0007 big and the mains to so this will throw your size off to i like them at small to mid point on the rods and main bores when i recon them

Don as I recall and go by. If the crank is UNDER size you need OVER size brgs..by that much. A 10 under crank needs 10 over brgs.