Best compression for 408.
Thread Starter
Teching In
Joined: Jan 2007
Posts: 41
Likes: 0
From: Jasper,AL
Best compression for 408. Okay my final stages are closing in on my 408 plan before I buy the parts. What would be the best compression ratio to run for the street and normal gas octane ratings. I want to squeeze all the power I can out of the engine, and still be able to run regular pump gas. I need to know what cc piston, gasket, and cc chamber on my heads. Please give me some insite... Head I am using are the AFR LS1 225cc heads with a choice of 62 amd 72cc chambers. Also, the piston options I have are -12,-15,-2,-10.
11.5:1 for a 408 in a street car should make some sweet power with the right heads/cam setup. -2 piston with a smaller chamber should do the trick.
btw, i have a great cam for a 408 street motor. 243/246 .632 112 pm me if you're interested in it.
btw, i have a great cam for a 408 street motor. 243/246 .632 112 pm me if you're interested in it.
http://www.rbracing-rsr.com/compstaticcalc.html
That should help you out. You can enter different combos and see how they turn out. Find out the deck height of the pistons, then you can figure out what kinda quench to run, then pick gaskets. Then you can delect chamber CC and piston CC to hit the right Static CR.
That should help you out. You can enter different combos and see how they turn out. Find out the deck height of the pistons, then you can figure out what kinda quench to run, then pick gaskets. Then you can delect chamber CC and piston CC to hit the right Static CR.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
TECH Fanatic
iTrader: (1)
Joined: Oct 2002
Posts: 1,851
Likes: 0
From: Elmhurst, IL (Chicago Suburb)
Originally Posted by skipperbisket
11.5:1 for a 408 in a street car should make some sweet power with the right heads/cam setup. -2 piston with a smaller chamber should do the trick.
btw, i have a great cam for a 408 street motor. 243/246 .632 112 pm me if you're interested in it.
btw, i have a great cam for a 408 street motor. 243/246 .632 112 pm me if you're interested in it.
