Gold Lifetime Member
Join Date: Jan 2005
Location: 2 Dog Town in West Texas
Re: 69 Camaro COPO 3963512 Block align bore issues
Long ago when we raced each weekend we had issues like this after a block was cut. It was too late to find fault , We would try to move the crank center line away from the cam hole by using different size bearings, thus tightening the timing chain. .
In one case ,we used an oversize bearing on the cam side and a standard or undersize on the opposite. It worked but after the race, our motors were tore down for inspection. When working with ,.010-.020 clearances, this sometimes worked.
This was not the norm, but we made it thru the race day.
TC # 349
Zdld17:69 Z/RS,306, NOR141111, 9N554XXX, 12A, X3G, 59/59,723, AFR 195,CCC282/290HR, TKO 600, BU1122B1E Owner since Dec 1968
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.