Quote Originally Posted by DennyW
On this road runner engine that will run between 62-6500, we are using sheafer oil blend. Rods at 2, mains at 2.5. Side clearance 15. full floating rods.

Have you tried the V bearings ?
No we have not.
I have heard other racers say they worked very well for them.
We have used some of the coated bearings when the crank was on the loose side to take up some extra clearance in street cars and have good luck with them.
My only worry is at hi-rpm/hi-load applications that the coated bearings might start to lose their coating.