408 lq4
Thread Starter
Staging Lane
Joined: Jan 2011
Posts: 97
Likes: 0
408 lq4 Building an LQ4 408 stroker, Ive read quite a bit on the forums about the topic but still have a few questions.
1. Want to use 317 cast heads, what all needs to be done to run a NA 11:1 cr motor and not loose a ton of power in the heads
2. With the heads listed above, for a street motor what kind of cam should i run
3. Will an ls3 intake loose me a lot of power over the fast intake?
1. Want to use 317 cast heads, what all needs to be done to run a NA 11:1 cr motor and not loose a ton of power in the heads
2. With the heads listed above, for a street motor what kind of cam should i run
3. Will an ls3 intake loose me a lot of power over the fast intake?
Teching In
Joined: Jun 2010
Posts: 43
Likes: 0
From: chesapeake, va
Im building a 408 iron block with 317 heads right now. Only difference is mine are 74cc after polishing(for FI). The 317 heads will work perfect for a street car, just run about a -6cc piston. My vette is setup this way with an SLP LS2
and comes out to 11.1:1. I would recommend the G6X3 cam, but the idle is a little bit much for most people. I make 507 rwhp and 491rwtq on 93. You can't use a LS3 intake with 317 heads...different ports. Good luck and get a good tune
and comes out to 11.1:1. I would recommend the G6X3 cam, but the idle is a little bit much for most people. I make 507 rwhp and 491rwtq on 93. You can't use a LS3 intake with 317 heads...different ports. Good luck and get a good tune
Try this website to see where you have to be approximately as far as gasket, heads cc, and pistons are concerned. http://www.wallaceracing.com/Calculators.htm
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
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
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0
Brett Foote
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever
Verdad Gallardo
42 lb. Injectors, Racetronix in tank 255lph fuel pump, and a racetronix hotwire kit will be all you should need. I had a 500 rwhp 403 ls2 stroker running with a STOCK pump and had no fuel issues whatsoever. However after 2 years of racing the pump started to fail and I replaced it with a 255lph Racetronix pump and hotwire kit. It solved my problem and gave me the extra fuel I would need had I decided to go any further with my setup.
pm me if you have any questions about anything....
-James
pm me if you have any questions about anything....
-James
