Iron block main bearing clearance ..
#2
I can shift faster than you.
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That is too tight for an iron block application. For street/strip applications, I shoot for .0024-.0026", with the on the thrust on the looser end of the spec.
I have run them as tight as .0020" on iron blocks with no problems or exessive bearing wear. Just be careful with your oil temps though.
Jason
I have run them as tight as .0020" on iron blocks with no problems or exessive bearing wear. Just be careful with your oil temps though.
Jason