Piston compression height

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Dec 25, 2005 | 04:45 PM

TchargedLS1TA

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From: Temple, TX

Piston compression height

What compression height on your pistons do you guys normally run with the 408+ cubic inch forced induction engines? Im lloking to be throwing about 19-25 psi of boost with maybe a squirt of nitrous for holeshot only... Is 1.125" sufficient?

Dec 25, 2005 | 06:07 PM

stevewix

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compression height is a component of stroke, deck height, rod length, and the amount you want the piston 'out of the hole'. if you have all of this other info i can help you out...

Dec 25, 2005 | 06:10 PM

stevewix

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http://www.diamondracing.net/cocalc.htm

btw this is really nice, and FYI my pistons for my 370 were a 24cc dish. hope this helps!

Dec 25, 2005 | 06:58 PM

SStrokerAce

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I wouldnt think it's enough unless the pistons are made specifically for that application.

Bret

Dec 25, 2005 | 10:54 PM

TchargedLS1TA

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From: Temple, TX

They are -30cc dished pistons with .107" valve reliefs cut in them..

Dec 26, 2005 | 09:37 AM

KCS

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From: Conroe, TX

For most F/I setups you really don't want anything below a 1.250" C/H. Most shelf pistons are in the 1.300"s anyways. Just make sure that you have enough quench so that you don't smash the pistons into the head.

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