C5 Head/Cam/Compression Questions
Thread Starter
12 Second Club
iTrader: (9)
Joined: Jun 2006
Posts: 1,051
Likes: 1
From: Grand Forks, North Dakota
C5 Head/Cam/Compression Questions On a stock C5 I am looking to get good heads such as the stage 2.5 5.3L heads or cnc'd ls6 heads and a cam like the ms3. At least mid 230's with about .600" lift.
Main question is how much can i mill these heads to up my compression, i am trying to figure out if i can get 12:1 or higher for max power with E85?
High lift cams limit the milling?
Main question is how much can i mill these heads to up my compression, i am trying to figure out if i can get 12:1 or higher for max power with E85?
High lift cams limit the milling?
My H/C in sig, and Im pretty much stuck with the cam I have due to PTV issues.
TSP can recess the valves in the heads in order to be able to run a larger cam with milled heads. Give them a call!
TSP can recess the valves in the heads in order to be able to run a larger cam with milled heads. Give them a call!
With a GM casting you'll be pressing your luck to mill them anymore than about .005" (clean-up milling only)! We're able to setup the 5.3L heads for the MS3 camshaft by recessing the valves a few thousandths like stated above. The 5.3L heads bump your compression up to about 10.8:1 or so. There's not really any more room to grow there without flycutting the pistons. I would assume you could just run more timing with the E85 without all the extra compression, but sine we cannot get E85 yet we have not been able to test it. Sorry I can't be of more help in that area.
Let us know if we can help with your build!
Let us know if we can help with your build!
__________________
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!
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!
