LS6 Spring Limit....

Reply Subscribe

Thread Tools

Search this Thread

04-09-2012, 12:43 AM

BottleFedZ346

TECH Resident

Thread Starter

iTrader: (17)

Join Date: Sep 2009

Location: Orlando Fl.

Posts: 791

Likes: 0

Received 0 Likes on 0 Posts

LS6 Spring Limit....

Got some LS6 Yellow springs to use on my 5.3 build for pretty much nothing, I was wondering what the power limit on them were before you start running into valve float issues?

Reply Like

04-09-2012, 07:11 AM

a4ls2goat

TECH Fanatic

Join Date: Jul 2010

Posts: 1,678

Likes: 0

Received 0 Likes on 0 Posts

Some say you'll get valve float after 8psi. I went with lunati duals just for a peace of mind. And their only 200$ for the kit. And are rated to. 650 lift.

Reply Like

04-09-2012, 11:57 AM

LS1NOVA

TECH Addict

iTrader: (12)

Join Date: Nov 2002

Location: Minneapolis,MN

Posts: 2,269

Likes: 0

Received 12 Likes on 12 Posts

Stock cam?

A friends car runs 13psi on a MP T70 totally stock 5.3 long block. Stock springs. Id say your ok below 600 if you dont spin it past 6k.

Reply Like

04-09-2012, 06:46 PM

BottleFedZ346

TECH Resident

Thread Starter

iTrader: (17)

Join Date: Sep 2009

Location: Orlando Fl.

Posts: 791

Likes: 0

Received 0 Likes on 0 Posts

Stock LS2 cam, also got for free......

I seen somebody else on here made 594whp on the yellow springs, guess ill have to wait and see!

Reply Like

08-13-2012, 11:03 PM

LS-Rx7

Teching In

Join Date: Apr 2010

Posts: 26

Likes: 0

Received 1 Like on 1 Post

I made 679whp with the blue ls6 springs now I think im getting valve float. The springs have been in the car for a year and half street driven on 600whp so maybe I wore them out.

Reply Like

Reply Subscribe