L SS 1

I bought a used motor with these springs and a ms4 cam but I want to run a stock cam since I dont want to buy any bolt-ons,car is stock. Will I be safe using them or should I use my stock spring with about 107k.I really dont want to buy any more parts.

Super Speed

iTrader: (8)

You should be fine reusing them!

PREDATOR-Z

reuse 107K miles springs???


OP, if you go back to stock cam, at least get a set of new OEM springs, even LS2, LS6 springs are dirt cheap.
Do not be lazy, spend the $

You are also going to need to retune your car, running stock cam on a big cam tune can be very unhealthy to the motor.

L SS 1

preditor z the car is stock with stock tune the motor I bought has the ms4 cam that I want to remove and want to re-use the prc springs. The orginal motor threw a rod.

PREDATOR-Z

Ahh seeeee, said the blind man

I would not recommend using such high pressure springs on a stock cam, especialy with stock pushrods (they will bend).

I still advise to get a low mile set of springs (OEM or LS2/LS6), see if anyone has any barely used takeoffs (if you are on a budget)

L SS 1

It may have hardend pushrods form tsp or someone else, how can I tell if there not stock.

LS1BLKSS

iTrader: (36)

i had the ms3 with the prc springs harden push rods... i took out the cam put the stocker back on and left the springs and push rods on... been driving it for a while like this and everything is good

CaliboyTA

iTrader: (2)

my friend has prc dual springs on his stock cammed 02 z06. no problems

PREDATOR-Z

Can you post a pic of them? surely 95% of the time poeple go with hardened p-rods on a cam that big.

See the duals will run (with hardened push rods), but it will put unnecessary strain on the valve train.
Stock pushrods will flex like more with those springs and that would be even worse.

Super Speed

iTrader: (8)

I meant reuse the PRC springs, errr I thought it would have aftermarket pushrods too, fwiw the stock pushrods have a little ball on both ends

Super Speed

iTrader: (8)

Hell, I'm sure you would find plenty of people who would straight up trade your duals for some ls6 springs too! BUT, IMHO you should be fine with the duals and the stock cam, people use duals and aftermarket cams and aren't having any problems don't really see a difference with a less aggressive camshaft!