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Old 03-19-2014, 01:52 PM   #1
Alan Roehrich
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Default Re: piston to valve cl. check

If it is a rectangle port big block Chevy Stock Eliminator engine that makes enough power to be competitive, I'd be real surprised if you could not see the "shadow" of the valves on the piston.
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Old 03-19-2014, 02:14 PM   #2
DIV3CR
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Default Re: piston to valve cl. check

Check the valve lift at retainer with both
springs and see the difference
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Old 03-19-2014, 07:30 PM   #3
richie 2
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Default Re: piston to valve cl. check

thank you.....exhaust im getting .105'' w/checking spring & dial indicator, .155'' w/race spring and clay method. The .028'' valve lash has been set while testing both ways...

Last edited by richie 2; 03-19-2014 at 07:56 PM.
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Old 03-20-2014, 07:38 AM   #4
richie 2
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Default Re: piston to valve cl. check

thanks everyone....we are going with what we have measured w/the race spring installed. its well safe. The answer to the question therefore is "using the intended valve spring to measure p2v clearance gives appx. +.050'' more than what the checking spring method shows". sp.

Last edited by richie 2; 03-20-2014 at 07:41 AM.
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