Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

Lq4 Head Question

Thread Tools
 
Search this Thread
 
Old Nov 23, 2009 | 06:46 PM
  #1  
Quick99TransAm's Avatar
Thread Starter
Launching!
iTrader: (15)
 
Joined: Jan 2008
Posts: 211
Likes: 0
From: St. Augustine FL
Default Lq4 Head Question

getting lq4 this week want to know should i leave the 317 heads on or swap to my prc 2.5 5.3 heads plus should i swap over my fbody cam or leave the truck cam in
Reply
Old Nov 23, 2009 | 06:53 PM
  #2  
silverz28camaro's Avatar
TECH Fanatic
15 Year Member
iTrader: (20)
 
Joined: Sep 2008
Posts: 1,962
Likes: 9
From: st.louis
Default

Think of the 317 heads as low compression ls6 heads, they will out flow a stock ls1 heads, but have bigger chambers for lower compression. Most turbo guys want these heads, so if you do remove them make sure to put a decent price tag on them as they are kinda sought after. I think the prc heads will give a quit a bit compression, I'm not 100% on how strong the truck pistons are but they may not like the higher compression the 5.3 heads offer.

If you can get a bigger cam then even your stock f-body cam. a cam like the texas speed tv.2 cam will make great power. But if you don't want to go that route at least put the f-body cam in, Its slightly bigger, but not by much.
Reply
Old Nov 23, 2009 | 10:22 PM
  #3  
hammertime's Avatar
TECH Fanatic
20 Year Member
iTrader: (1)
 
Joined: Apr 2006
Posts: 1,436
Likes: 2
From: Smithton, IL
Default

Depending on what size the chambers are, and what gaskets you run, the 5.3 heads could push your compression up to 10.5:1 or 11:1. Also, don't forget that GM switched the LS1 engines in 2001 over to the 6.0L truck cam. You may be better off leaving it if you are not planning an upgrade. That said, even a mild cam could make an easy 400/400 to the rear wheels, while still remaining fairly stealthy, especially with an LS6 intake.
Reply
Old Nov 24, 2009 | 02:03 PM
  #4  
silverz28camaro's Avatar
TECH Fanatic
15 Year Member
iTrader: (20)
 
Joined: Sep 2008
Posts: 1,962
Likes: 9
From: st.louis
Default

My buddy has a ls2 gto cam whitch I think is a decent sized cam if you are on a budget, do a search on 2006 ls2 gto cam specs, but I think they are near 525 lift. I'm sure he would sell it cheap, just pm me and/or give me your cell.
Reply
Old Nov 24, 2009 | 03:04 PM
  #5  
hammertime's Avatar
TECH Fanatic
20 Year Member
iTrader: (1)
 
Joined: Apr 2006
Posts: 1,436
Likes: 2
From: Smithton, IL
Default

LS2 GTO cam is the '01 LS6 cam, 204/211 (or something like that, I'm on my phone). For a budget build, I agree that it would work well.
Reply
Old Nov 24, 2009 | 04:52 PM
  #6  
transam69230's Avatar
11 Second Club
20 Year Member
iTrader: (49)
 
Joined: Feb 2005
Posts: 1,872
Likes: 22
From: Minnesota
Default

Would l92s work with the Lq4 if so i would go them. They can be had relatively cheap i believe.
Reply
Old Nov 26, 2009 | 09:20 AM
  #7  
hammertime's Avatar
TECH Fanatic
20 Year Member
iTrader: (1)
 
Joined: Apr 2006
Posts: 1,436
Likes: 2
From: Smithton, IL
Default

"or swap to my prc 2.5 5.3 heads"

While L92's would work, the original post was about choosing between the heads that Quick99TransAm already has available. L92's would require different rocker arms and a different cam profile as well.
Reply




All times are GMT -5. The time now is 04:24 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE