replacing rod bearings..?

[NC87GN]

87 GN with 113K on the clock stock block. I'm doing the rear main seal and thinking about replacing the rod bearings. Motor runs great however it has been run hard the last 5-6K. What bearings should I replace the stockers with and where do most of you purchase them from? Any other comments are welcome...

Mike Banas
87GN, pt51, 009's
mbanas@triad.rr.com

 

[NC87GN]

Talked with a TR specific engine builder today. Recommended the Clevite 77 that are 0.001" over std. Also ordered the a replacement rear main seal (rubber). Only concern I have is the increase in oil pressure going with 0.001" over std bearings. He said I may see a 4-5 psi increase. I modified the stock timing cover with a spacer plate and honed the ports for decreased oil pressure upon startup. I have 75 psi (cold) 40 in park (hot) 20 in D (hot at idle). Might step down from a 20W-50 to a 10W-40... Any thoughts??

Mike Banas
87GN