G5x4...
Thread Starter
Racer
Joined: Apr 2006
Posts: 393
Likes: 0
G5x4...
I'm looking at buying the G5X4 cam for my 02' z06. I plan on running my stock untouched heads. What all is needed to make this thing fit and what other parts do i need to make it as safe/reliable as possible. Thanks! 
Justin
Justin
Last edited by stol3n; May 26, 2007 at 05:18 PM.
Safety Car
Joined: Jan 2005
Posts: 3,675
Likes: 58
From: Hayward (Bay Area) CA
That is valuable info for some of us. I've been considering doing a Cam upgrade too. But don't know for sure all the parts needed. It would Help is someone could put a list of items/parts needed to do a Cam change. 
Le Mans Master
Joined: Aug 2003
Posts: 9,298
Likes: 4
From: American Canyon Lethal Injection
1. Oil pump.
2. Timing chain and maybe gears.
3. Upgrade to a under drive pulley (8-10 rwhp gain) and correct size belts
4. New pulley bolt. (GM bolt can only be used once)
5. Gasket set.
6. Valve springs 918 or 921
7. Push rods for proper lenghts.
Others may chime in with something I may have missed.
Beware,
The cam swap is one of the most time comsuming swaps to do.
Next I hear is the clutch R&R.
Last edited by SLPRC5; May 28, 2007 at 04:14 PM.
Team Owner
Joined: Mar 2001
Posts: 25,889
Likes: 7
From: Virginia Beach
CI 3-5-6-7-8 Veteran
Cam kit from LGM will include most all of what you need.
*cam
*comp 921 dual valve springs
*new valve seals
*new spring seats
*titanium spring retainers
*hardened pushrods
You might also want to do the following:
*ported or high volume oil pump
*upgrade the timing chain to at least an LS2 chain
*get an underdrive pulley.
I went w/ the G5-X2 cam kit, LS4 oil pump, LS2 timing chain, Yella-terra roller rockers (new lighter design), and ATI superdamer underdrive pulley. This all went w/ the mods I allready had: Vortex rammer air bridge w/ high flow duct, Kooks LT headers w/ cats, and Borla Stingers.
It has made for a very potent and reliable cam-only package that will safely spin to 7000 rpms over and over completely smooth.
Oh yeah you'll need a gasket kit... SPDC sells a cam install kit w/ all the gaskets you'll need and a new crank bolt etc.
*cam
*comp 921 dual valve springs
*new valve seals
*new spring seats
*titanium spring retainers
*hardened pushrods
You might also want to do the following:
*ported or high volume oil pump
*upgrade the timing chain to at least an LS2 chain
*get an underdrive pulley.
I went w/ the G5-X2 cam kit, LS4 oil pump, LS2 timing chain, Yella-terra roller rockers (new lighter design), and ATI superdamer underdrive pulley. This all went w/ the mods I allready had: Vortex rammer air bridge w/ high flow duct, Kooks LT headers w/ cats, and Borla Stingers.
It has made for a very potent and reliable cam-only package that will safely spin to 7000 rpms over and over completely smooth.
Oh yeah you'll need a gasket kit... SPDC sells a cam install kit w/ all the gaskets you'll need and a new crank bolt etc.
Racer
Joined: Mar 2007
Posts: 471
Likes: 2
From: Hillsboro MO
If you are going with the G5X4, i would talk to LGM about their recommendation on flycutting the pistons for that cam. IIRC, P to V clearances are tight, and a missed shift could cause some valve damage.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
