Bearing Clearances & Ring Gaps
#1
Bearing Clearances & Ring Gaps
I just pick up all my parts from the machine shop and I'm ready to start building my engine. I found these bearing clearances for a Chevy 350:
Main
Stock: .002-.0035
Hi-perf street: .0025-.0037
Race: .0032-.004
Rod
Stock: .0017-.003
Hi-perf street .002-.003
Race .0025-.0035
Are the clearances about the same for an LS1?
Also, what is recommended for ring gaps?
Thanks
Main
Stock: .002-.0035
Hi-perf street: .0025-.0037
Race: .0032-.004
Rod
Stock: .0017-.003
Hi-perf street .002-.003
Race .0025-.0035
Are the clearances about the same for an LS1?
Also, what is recommended for ring gaps?
Thanks
#2
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Re: Bearing Clearances & Ring Gaps
Ring gap opinions seem to vary alot on this board. I would go with the recommendation of the piston manufacturer. IMO, the rod bearing clearances you listed look dead on, but the race clearance on the main bearings look a little high. I would stick to .0025 to .003". The larger clearances will take more oil pressure to feed the bearings.
#3
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Re: Bearing Clearances & Ring Gaps
I have a Excel doc with the factory specs for the LS1.
e-mail me if your interested
robertbartsch@kpmg.com
e-mail me if your interested
robertbartsch@kpmg.com