HP500 Piston to valve clearance
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HP500 Piston to valve clearance
Does anyone know if a crane "651" cam will work in an otherwise stock HP500 and have enough piston to valve clearance? Stock heads and stock JE pistons...I plan to measure anyway, but curious from anyone with experience on this set-up. Thanks.
#2
Re: HP500 Piston to valve clearance
That cam has .034 more intake lift and .020 more exhaust. I would think that it is a big cam for a stock compression low displacement engine. I was going to use that cam on a 9:1 Whippled 540 with dry tail pipes. I am sure the experts will chime in.
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Re: HP500 Piston to valve clearance
Crane has it in their blower cam section. It would not be my choice either. I should say "had", on their old web site.
Last edited by PatriYacht; 01-19-2005 at 11:07 AM.
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Re: HP500 Piston to valve clearance
Parti,
In the 15 years I have been messing with camshafts and lobe designs for engine combinations I have NEVER had a shaft ground with advance to go into a blower enigne. It makes no sense to open a valve early when you have something that is going to stuff air and fuel into the chamber.
Chris
In the 15 years I have been messing with camshafts and lobe designs for engine combinations I have NEVER had a shaft ground with advance to go into a blower enigne. It makes no sense to open a valve early when you have something that is going to stuff air and fuel into the chamber.
Chris
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Re: HP500 Piston to valve clearance
Chris;
What cam would you use, hydralic roller? Stock 500HP except for 8-71's and (2) 825 blower carbs.
I gotta tell you though, I know several people who run that cam on blown 502's with great success, not only on the dyno but in their boats.
What cam would you use, hydralic roller? Stock 500HP except for 8-71's and (2) 825 blower carbs.
I gotta tell you though, I know several people who run that cam on blown 502's with great success, not only on the dyno but in their boats.