zachness

does the 02 ZO6 cam require ZO6 valves? If i keep the stock redline 6,000rpm do i need 8upgraded valvsprings? I have read in numerous places i need valve springs but they always want the motor to rev to 6,500! the cam peaks at 6,000 so i dont see much point in reving beyond that. The mid range torque is sufficient in my opinion even with a more aggressive cam and the non ZO6 gearing.

bczee

iTrader: (12)

1st of all.. what are you swapping it into..?.. It is not some much of the RPM Range that will kill the springs (although extended high RPM will cause Fatigue failure) as much as the Lift causing the spring to fatigue or bind and therefore causing it to fail.

Most of the time, with anything over .575, you might or should upgrade your springs to something that can handle the lift and ramp rate. You can get a set of spring from Scoggin Dickey Parts center.. you an get some LS6 or there SDPC springs for around $150 or less... would be safe insurance and a good upgrade.

NemeSS

iTrader: (127)

z06 cam would require the ls6 yellow valvesprings and pushrods
the valves are not needed. if u have the ls6 intake installed also, you will notice the slight increase in power, now if u upgrade with the 243 heads and a tune and a free flowing exhaust, it will really be noticeable, since it will be around 400+bhp range

180ls1

iTrader: (4)

the z06 cam peaks around 6400 not 6000 so if you want to make more power you will want your limiter set at 6500.

Evans752

iTrader: (29)

Ok, Ive set 3 or 4 cars up with the 02 ZO6 cam and when I set them up I went with the Comp Cam 918 springs with stock retainers because the stock springs in my opion are not that good even for the small cam that comes in the LS1 especially when reving to 6000 RPM or more. Second the base circle that the 02 ZO6 cam is smaller and you will need longer pushrods and a few years ago we ran 7.45 then I went to running 7.40 stock length and car ran faster but now I see they make 4.425 and that would be the correct lenth you would need I think. I set the rev limiter to 6500 RPM and shifted at a lttle over 6000 RPM but by the time you see it your at the 6500 RPM in the computer with either a programer or LS1 edit style softwear. Good Luck

ChrisS@sdpc

The valves are a nice lightweight addition to the valve train, but not necessary when installing the cam. You do need the springs. Besides, the springs are cheap ($50-60; 12499224 IIRC)

NateZQ8

iTrader: (3)

get some 7.425 pushrods, you want to upgrade the pushrods anyway if your replacing the cam.

zachness

99 M6 non ZO6; So LS1 motor. Thanks for all the info guys. I pretty much have a free flow intake complete with a ls6 intake manifold and ported TB. Only thing i "need" to upgrade for higher flow would be ported heads and new MAF. So can i expect alot of power with high flow intake and this cam? Mind you i have B&B bullets and an x pipe.... would i be pushing more then 400 crank Horsies?

So with this cam i need new pushrods for good vavletrain geometry, vlalve springs to handle the lift at peak power, but i dont need the valves. sweet!

zachness

99 Ls1 powerband 350TQ@4400rpm and 345HP@5600rpm
02 Ls6 powerband 385TQ@4800rpm and 405HP@6000rpm

Are you talking about with mods then? Arent those numbers where the power peaks and falls off little by little?

180ls1

iTrader: (4)

ya i may have had it wrong it looks like it peaks more around 6200 here there is a dyno in the link
https://ls1tech.com/forums/showthrea...=894655&page=2

MeentSS02

iTrader: (11)

If you are swapping to that cam, you will need 16 LS6 valvesprings and 7.425" hardened pushrods (since you are keeping the stock valves).

Also, get the idea that where a cam peaks is where you want to shift it out of your head...it isn't the peak power that you are worrying about for a shift point. It is more important to worry about where you will fall back to in the power band in the next gear. The LS6 cam holds on pretty well past 6000 RPMs, and should, IMO, be shifted at 6500-ish RPMs.

180ls1

iTrader: (4)

yes very true, i would imagine that this cam would work better on a six speed car because of the gearing. Anyone know how much i would pick up cam only on my 99 car?

zachness

I take it its because the vehicle had some more airflow then say a stock ZO6 and tune. Is that a fair assumption? So a good flowing intake with that cam makes for alot of top end fun?

By the way is there a method of running a search for stuff on this site? It would prevent me from leaving stupid posts thx.

180ls1

iTrader: (4)

well that cam is in a f body not a zo6 and that cam will not be a mid range cam it will be a top end cam reguardless of what you do. Yes there is a search button just look at the upper right hand corner.