Reply to "Engine Rebuild"

George,

Your advice is to go to a hydraulic roller cam. What is involved with switching to one? Can you use the same type of cam bearings? Do you have any break-in time? Is it just a matter of installing it and away you go? I understand that you have to use a "retro fit" kit. Does this involve drilling the block? Do I have to change the pushrods? I am at the stage now where I have just had two flat tappet hydraulic cams go flat, one after five mins and one after ten mins after doing everything right, checking valve lift, spring bind, etc and now am so fed up that I am going to use a hydraulic roller but have never used one before and want to get it right the first time. Any advice for me and the rest of the forum? I have been advised to use Comp Cams part number 32-431-16 hydraulic roller cam with a lift of 566 on a Pantera equipped with 4 48IDA webers and 180 headers, bored 30 over, KB Hypereutectic pistons, PJ gear drive, reworked rods, oil accumulator, oil cooler, and MSD 7al2 ignition. Thoughts on this?

Thanks, Steve