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which valve springs?

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Old

Apr 17, 2007 | 06:34 AM

#1

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Joined: Feb 2007

Posts: 19

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which valve springs?

What are the cheapest valve springs that I can buy from summit, that will work with the ZZ4 cam, its max lift is .510

Old

Apr 17, 2007 | 07:31 PM

#2

Supreme Member

Joined: Sep 2001

Posts: 6,111

Likes: 53

From: Ontario, Canada

Car: 1988 Firebird S/E

Engine: 406Ci Vortec SBC

Transmission: TH-350/3500stall

Axle/Gears: 7.5" Auburn 4.10 Posi-Traction

Re: which valve springs?

Lunati #73943 at $66 will do the job. Check the installed height and shim as nessessary to get them as close to 1.70" as possible. Comp cams stock diameter valve spring shims kit #4753 $25

Old

Apr 19, 2007 | 05:33 AM

#3

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Joined: Nov 2000

Posts: 3,347

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From: Roy,UT USA

Re: which valve springs?

I just bought the GMPP orange color coded ZZ4 valve springs from Scoggin-Dickey to run with my ZZ4 cam. Only cost about $45 for the springs. You'll want to get the matching retainers too, which are less than 20 bucks IIRC.

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