Spectre86

iTrader: (42)

So I have milled L92s with a TEA valve springs/retainers, but a stock L92 valve. build is a 427 with roughly 11.5 CR and a large cam. Whats the "safe" limit for the L92 valve. 6500-6800 pushing it?

Gordon0652

iTrader: (4)

I would not worry about it, but with the money in that build, why not LS3 valves? My G8 spins 6500, after market spring kit, LS7 lifters, after market push rods.

3pedals

iTrader: (3)

I've turned mine 7200 MANY times, and my new combo will be wound up to 7700ish

WKMCD

iTrader: (2)

I ran stock L92 valves in my 403 build with a .660 lift cam and PAC 1521 springs.. They're not a bad valve and actually lighter than some of the SS valves out there. I bounced mine off the 6800 limiter lots of times. I'm still running the PAC 1521 springs.

Spectre86

iTrader: (42)

arent they rated at .650 lift? never had any problems running a .660 lift cam with those springs?


well i feel alot more comfortable now with the l92 valves btw, you have one hell of a setup man

WKMCD

iTrader: (2)

The Pac 1521's will handle .675 very comfortably.

Spectre86

iTrader: (42)

gotcha. thanks for the info