i wanted to know what clearences you guys use on the main bearings and rod bearings, how mutch looser and if any one has a chart that gives me actual bearing thickness not cleaence it will give me, im gonna blue print the bottom end my self i just want to know what bearing specs people are running and what works good for like 8000-8500rpm

 

Stock bearing clearances.

 

i swear you should go with looser clearences when rebuilding a motor for high hp

 

there are a couple of people u might want to talk to in the prelude forum they would know just go check it out talk to satan and 2 point 6 or ranta they ll know

 

I did a thread awhile back on this.

The oil clearance specs I found in my Honda manual for the crank are:
#1 .0008-.0018
#2 .0008-.0018
#3 .0010-.0020
#4 .0005-.0015
#5 .0004-.0013

For a full race motor go .0018-.0020
For a street race motor go .0013-.0015