FRCTony

Seeing many LS1's have weak springs, what would be a good replacement choice for running boost?

I would like a spring that has stock reliabilty if possible.

Are the LS6 springs sufficient for 7-8lbs? Cost?

Aftermarket?

TIA!

mdhmi

Depends what cam you run.

TSP and Comp 921's are reported to work very well for aftermarket cams and FI.

I didn't have any problems with the Comp 918's with FI and a stock cam.

The REV 18's are to be avoided when possible.

Mr. Big

if you are going to replace the springs, you may as well do it right the first time. You will be fine with ls6 springs or 918 springs. TSP's or Comps dual spring is more than you need with a stock cam, however, i would do the the dual anyways. This way if you decide to upgrade the cam later, you won't need to upgrade the springs.

At this point the weak part of the valve train becomes the pushrod, may as well replace while your there with a hardened set

LV Vette

About how much would it cost to upgrade the springs and pushrods? Just an approximate guess would do.

Thanks,

Clayton from Las Vegas

RED99

I have a brand new set of LS6 springs if you are interested. $60 shipped. They cam with the LPE GT2-3 cam I just installed. I am installing a set of Patriot Gold Double Valve Springs instead. I got the whole kit for about $270 shipped. I think the hardened pushrods was around $110.
All springs lose some tension after a period of time, so if you are running the weaker stock LS1 springs, it's defently a good idea to replace them. Also when you install some new springs, you should heat cycle them to break them in.

Mr. Big

you should be able to pick up both springs and pushrods for 325-350 bux. This is with the double springs and new titanium retainers. Check out Texas Speeds website, you can price out both.

www.texas-speed.com

Dom