TX Z06 02

I've recently boosted my stock ls6 (02 with 101k miles) - A&A Vortech V2 (~10 psi boost) with methanol injection. I upgraded a lot of things when I did it but for some reason I never checked under my valve covers.

So after a lot of reading and getting nervous, I finally decided to do that today. I pulled my passenger side valve cover and it has yellow springs. I thought if they had been replaced, that they would be blue. That's what GM sells that supersedes the original valve spring part number.





Should I be immediately concerned that they are yellow?
I was thinking of changing them out this winter just to be on the safe side, but after seeing yellow, don't know if I should take a more immediate action.

I am considering replacing with the blue springs for LS1/LS6 (1249924). I've also read that the LS9 springs (12625033) are an upgrade, but it doesn't appear that they have much more holding force.

Obviously comp 26918 are an upgrade if I keep beehive springs and I want some extra reassurance.

What about dual springs like comp 144832? I have no plans for a cam upgrade, but should I consider dual springs for the amount of boost?

What are other boosted cars running with stock heads and cams?

Should I replace pushrods when I do springs/retainers/seals? Any recs?

What about ls7 rockers? Aren't they a higher ratio?

SquatchMachining

I would replace them with some Tooley .660's or PAC 1207's. Can't pay me to use comp springs.

Ls2gtoowner

Tooley as well here. They are cheap insurance I would change them ASAP

switchplanner

PAC-1218's

SBCGENII

Tooley sells some better LS6 springs for around $60. You can't use ls7 rocker arms. They are offset to make room for a bigger port.

TX Z06 02

Thanks for the recs. ordered my BTR 0.660" springs/seals/retainers with chromoly pushrods today. Hopefully the length is ok, but judging by the fact that I still have yellow valve springs, I am pretty sure the pushrod length is unchanged as well.

bmfvette

You made the write choice... Unless the heads have been shaved the 7.4 pushrods should be fine. Better to go with a double valve spring than a beehive since you're boosted..

TX Z06 02

Ok now I'm confused. Valve springs look stock but aftermarket chromoly pushrods?




Do I keep these or put in the BTR chromoly pushrods? These look great upon initial inspection.

Josh@AandASuperchargers

I always do dual springs period. Seen way too many GM single springs break and cause damage.

bad man Barry White

those are heat treated chromoly as well. if they pass the glass surface roll test, leave them in and keep the others as spares