Valve Springs for 500HP

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01-11-2008 | 02:30 PM

Kimochi-ii

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From: Holland,MI

Valve Springs for 500HP

I am planning to do some winter PMs on my 35'Fastech with 500HPs. What are the recommended valve springs for 500HPs?

Last edited by Kimochi-ii; 01-11-2008 at 02:48 PM.

01-11-2008 | 02:59 PM

formula 382 sr-1

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From: Chesapeake Bay

Quote:

Originally Posted by Kimochi-ii

I am planning to do some winter PMs on my 35'Fastech with 500HPs. What are the recommended valve springs for 500HPs?

Isky 8005 sp

01-12-2008 | 05:03 PM

Strip Poker 388

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From: Ms

I used the comp 929. set up at 1.880 145 seat,buzzing mine out to 6k.. 150plus hours and pressures the same

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01-12-2008 | 10:14 PM

Noise Pollution

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From: Upper Chesapeake Bay

Just put PSI on my heads.

http://www.psisprings.com/

http://www.proracesupport.com/prs/fe...oduct/psi.aspx

Last edited by Noise Pollution; 01-12-2008 at 10:16 PM.

01-13-2008 | 03:51 PM

Gizmo

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From: Chesterfield, Va.

I have the the Comp 929's in mine, also. Very pleased.

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01-14-2008 | 08:11 AM

axapowell

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From: Alexandria Bay, NY 1000 Islands

I'd follow Strip's recomendation of the Comp 929 and change to steel retainers and upgrade the locks to 10*.

Dave

Quote:

Originally Posted by Strip Poker 388

I used the comp 929. set up at 1.880 145 seat,buzzing mine out to 6k.. 150plus hours and pressures the same

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