Slow Z28

iTrader: (19)

just wondering if there is any advantage to upgrading my valvesprings even with stock rockers, pushrods, and stock cam? ability to spin the motor higher? mine stock liked to be shifted at about 6400. got the best times that way, but from what i read it's not good for the valvetrain that high. any thoughts?

Chris

SiskMan

Sure, you will have a more stable valve train. The stock springs are not that great. But on the stock cam I dont think you are making much power at 6400 RPM. With a cam/spring/pushrod upgrade you can go 6400 all day long while actually making power

Jontall

The Tooley spring kits are great and low cost. Platinum Spring Kit with steel retainers and a trunnion kit will be a nice upgrade and very reliable.

KCS

iTrader: (20)

Why would you respond to a nearly 14 year old thread?

96capricemgr

iTrader: (1)

Why would someone recommend a .660 lift capable dual spring at $230 when drop-in beehive like an ls6 spring would do at a fraction the cost?

thunderstruck507

iTrader: (18)

Agreed.

the ls6/gmpp would be more than enough to suffice as a peace of mind upgrade on a stock cam/valvetrain

Darth_V8r

iTrader: (4)

I've seen at least three by this guy. Zombie threads resurrected for no good reason.

ahritchie

iTrader: (1)

Gotta get them 50 posts to get classified section access!

96capricemgr

iTrader: (1)

Or just been using the search function

Jontall

Because when a beehive spring breaks the valve drops which doesn't happen with dual spring. 95% of the time the inner spring will keep the valve from dropping into the cylinder and alert you to the problem... And you're right, this thread is 14 years old.

96capricemgr

iTrader: (1)

Yeah because those millions of GM engines that came factory with beehives are dropping like crazy............hardly a day goes by when I don't see 2-3 dead on the side of the road during my 7 mile commute to work.


For a .620 lift cam the duals argument is reasonable, for a stock cam, it isn't.

madmike9396

iTrader: (29)

Wtf lol