70mc
Automotive
- Jun 30, 2004
- 8
I am working on a smallblock chevy and getting rod bearing clearances of .0045. I am looking for a clearance of .0025. I have a new crank that is measuring 2.099, in spec. but on small side, and new rods that are measuring 2.2252, in spec. but on the big side. I am using a micrometer and dial bore gauge to get these specs. I have tried 2 differant bearing brands,that came out to .0045. I have also tried a bearing that will give you .001 less and it came out to .0035. I am racing and need a chamferd bearing and can't find one that will give me .002 less clearance. I can't return the crank or the rods since both manufacturers say they are in spec. My question is if i have the rods reconditioned on the small side 2.2247 what will that do for my clearances. I dont think the answer is .0005 less because i think the bearing will exagerate the half thousandts.