08-23-2014, 01:43 PM
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Senior Club Cobra Member
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Join Date: Feb 2005
Posts: 651
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Not Ranked
Quote:
Originally Posted by blykins
This one is not. It's not a high rpm engine, nor will it be a high hp engine, relatively speaking.
On a $250 crankshaft, having to add $100-200 worth of metal just isn't cost effective.
Spent another 30 minutes on the rocker arm geometry, just wasn't happy with it.
Went through a couple more iterations with the pushrod length checker and got it to where I didn't lose any valve lift.
FWIW, a 6.225" pushrod lost .005" worth of lift at the retainer. A 6.300" pushrod didn't lose any, and the pattern was good, just a little past center on the valve tip.
Good retainer to rocker arm clearance. Check.
Good pushrod to rocker arm clearance. Check.
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Your attention to the smallest details and values is satisfyingly noted!
David
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