Cam and valvetrain question
Cam and valvetrain question i have a lq4 and looking at using comp cam 222/224 566/568 cam with stock push rods and ls6 springs.... wondering if this combo will work together, reving to 6000 rpm. thanks, chuck
Negative man.
The LS6 springs will not hold the lift for one thing, and will coil bind like a **** im sure. Stock lift on the later LS6 (2002+) is .550 and your over that a fair amount.
The LS6 springs will not hold the lift for one thing, and will coil bind like a **** im sure. Stock lift on the later LS6 (2002+) is .550 and your over that a fair amount.
Staging Lane
Joined: May 2007
Posts: 54
Likes: 0
From: Fort Worth
What type of lobe design on the cam? And yes, +1 on the springs not being rated to sustain that type of lift. I would go with 7.400 hardened pushrods and Comp 918 springs at minimum.
No matter what you always want to go .050 higher in your spring lift capability of the total cam lift number. Ask any one and they will agree. Stock rods are good for a stock cam. Why you ask because the are not made to deal with more aggressive lobe ramps and they will become the weakest link in your valve train. On the valve train there are two things that you can put something none stock and they will work and those are the heads & rockers. Even on heads it is still recommended to get them ported and polished to cam specs to get the best performance out of the cam.
How many miles does your engine have? If your over 50K I would also think of replacing the lifters. if your over 80K miles I would STRONGLY recommend replacing lifters, and oil pump.
How many miles does your engine have? If your over 50K I would also think of replacing the lifters. if your over 80K miles I would STRONGLY recommend replacing lifters, and oil pump.
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Verdad Gallardo Good luck on the build.
I'd agree, definitely get some better springs than the LS6's, be it the PAC 1218's or Comp 26918's! We've got both in stock at competitive pricing. Let us know if we can help 
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Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
