Rick, I have never taken offense to anything that you've said to me. You tend to be very thorough in thought, and I can respect that.
I think your hp goal is pretty realistic and now that you have the rods bought, I would look very hard at valvetrain components as they are equally as important in the overall scheme of engine reliability. Lots of deflection in parts at 7500 rpm, and I think that if it's got enough cam to make power up there, you'll find yourself above that mark. No need in building the bottom end to be bulletproof but short-siding yourself on the top end.
Not sure what you're using for a cam or lifters, but it takes a good bit of spring pressure for things to stay in contact with each other at those rpm levels. Pushrod quality is paramount, and rocker arm stability is paramount. I guess what I'm trying to say is that there's no need in hamstringing yourself over a set of valve covers.
If you are using a flat tappet cam, I would look long and hard at having the lifters EDM'd, and I would not restrict oil to them or to the rockers/springs. At those kinds of rpms, springs will weaken quickly from heat.
As for bearings, I like both brands and use them pretty much exclusively, using more ACL over anything else. King will size up differently than the ACL, so before you pay the big bucks to have them coated, I would buy one or two of each and do some clearance mock-up.
3Likes
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