millerw

Im looking for suggestions on which valve springs to get for the installation of my comp cams Custom grind 237 INT 244 EXH .610 INT .644 EXH 112 LS on my 01 WS6. Any help would be appreciated im new to ls1's

jetlag

iTrader: (32)

PAC 1518, maybe?

slt200mph

iTrader: (42)

PRC Extreme duals (.700 lift) ...with that size lobes you are going to need good control of your valve train.

millerw

would these work safely? https://www.patriot-performance.com/...0&cat=0&page=1

slt200mph

iTrader: (42)

You need 50/1000s over the lift of the cam for your spring ... you listed .640 lift on the exhaust lobe...that is why I suggested the .700 lift PRC Extreme springs. What is the application for this big azz cam??...one place you do not want to cut corners is in your vavle train especially with a large cam.

WSsick

iTrader: (13)

yes but id go with these:

nothing wrong with a little bit of insurance when running a big cam. peace of mind never hurt. some people even run duals on low 230s cams.

Jason 98 TA

iTrader: (4)

Without a doubt you should consider the new PRC EHT springs. They're a complete redesign from the platinum/gold/xtreme springs old stuff. They are built using much better material & as a result have been tested to have greatly longer life & they won't shrink when installed on increased lift camshafts.

For the money the EHT PRC spring kit is worth it's weight in gold. If your on a budget the new .660" PRC spring is a redesign that's still a good bit better than the old platinum or extreme springs. They were redesigned to not have shrinking issues at .650", but they won't last as long as a EHT spring.

JPH

iTrader: (2)

Use a "proven" dual spring setup imo. That camshaft profile would prefer that.

02*C5

iTrader: (1)

^^^^ ALWAYS go with 50/1000 over your total highest lift number. You will have assurance that you won't run out of spring specially if your running an M6 set up and miss a shift or something, you don't want to have your springs maxed out when you hit hit the rev limiter.

bearcatt

iTrader: (41)

I like those too alot.

But the poster has a BIG cam.

The duals might be better.

I have a good deal on a set of some of the best valve springs made.

https://ls1tech.com/forums/lsx-parts...l#post12151077




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millerw

Im not really finding many options for a .700 lift without having to moddify the spring pockets. Can anyone point me in the right direction?

WKMCD

iTrader: (2)

I run PAC 1521's with more lift than you. Expensive but the best drop in spring you can get.