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FattyBoomBatty · 04-09-2009

Yeah, when you first build it, it can get tight once you put the head on. If you've ever tried turning a camshaft in an assembled head (off the block) you will know why. Just think of the additional force required to depress the valve springs. I know my upgraded ones have a seat pressure of 100 lbs, and it only goes up from there.

That's why rotary valves are so pimptastic.

04-09-2009	#330
FattyBoomBatty Banned Join Date: Dec 2003 Location: Boulder, CO Drives: Conquest Posts: 5,049	Re: Make slowboy not so slow Yeah, when you first build it, it can get tight once you put the head on. If you've ever tried turning a camshaft in an assembled head (off the block) you will know why. Just think of the additional force required to depress the valve springs. I know my upgraded ones have a seat pressure of 100 lbs, and it only goes up from there. That's why rotary valves are so pimptastic.