Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:
View Poll Results: P&P my stock LS2 heads or 90/90 combo
P&P my stock LS2 heads
12
92.31%
Buy 90/90 combo
1
7.69%
Voters: 13. You may not vote on this poll

P&P LS2 heads or 90/90

Thread Tools
 
Search this Thread
 
Old Jan 15, 2006 | 06:48 PM
  #1  
REDSS01's Avatar
Thread Starter
11 Second Club
iTrader: (25)
 
Joined: Nov 2004
Posts: 460
Likes: 0
From: Pensacola, FL
Default P&P LS2 heads or 90/90

I've been thinking about getting the 90/90 but for some reason this ? came to my head "why not p&p my stock LS2 heads?" Would I be making more WHP P&P my stock LS2 heads than a 90/90 combo? What would be the bang for the buck?
Mods are:
stock ls2 heads
F13
lid w/K&N
ASP pulley
Kooks LT's
kooks CYP
cutout
Reply
Old Jan 15, 2006 | 08:48 PM
  #2  
GuitsBoy's Avatar
TECH Senior Member
iTrader: (4)
 
Joined: Apr 2003
Posts: 6,249
Likes: 3
From: Long Island, NY
Default

Youve already got an ls6 manifold, so the 90/90 wont do as much for you as if you had the old ls1 manifold. heads should gain you quite a bit more.
Reply
Old Jan 15, 2006 | 08:52 PM
  #3  
AINT SKEERED's Avatar
TECH Junkie
20 Year Member
Liked
Loved
Community Favorite
iTrader: (2)
 
Joined: Apr 2002
Posts: 3,990
Likes: 361
From: Albany La
Default

for some reason it wont let me vote but I say do the 90/90 jsut for easabilaty. Pull the heads off when you do everything else.
Reply
Old Jan 15, 2006 | 09:17 PM
  #4  
REDSS01's Avatar
Thread Starter
11 Second Club
iTrader: (25)
 
Joined: Nov 2004
Posts: 460
Likes: 0
From: Pensacola, FL
Default

Originally Posted by AINT SKEERED
Pull the heads off when you do everything else.
When I do what else?
Reply
Old Jan 15, 2006 | 09:51 PM
  #5  
JZ'sTA's Avatar
Banned
iTrader: (23)
 
Joined: Jan 2004
Posts: 3,126
Likes: 2
From: Ft. Myers Fl
Default

I would do the heads now. Easier to change the intake and TB down the road.
And cheeper also.
After selling your intake and TB it would probally be only about 800 out of pocket when you get some more money saved up to swap to the 90/90.
Reply
Old Jan 15, 2006 | 11:20 PM
  #6  
AINT SKEERED's Avatar
TECH Junkie
20 Year Member
Liked
Loved
Community Favorite
iTrader: (2)
 
Joined: Apr 2002
Posts: 3,990
Likes: 361
From: Albany La
Default

I was not finished. I run a tow boat On the Mississippi river and got busy . I hit reply before I was finished.
YOur heads are doing damn good looking at your numbers through the cats. Intake would be about 15hp or so if tuning is done after intake swap. Heads may give you more but then your car is down waiting to get yours ported. I plan to do better heads but I am waiting to pull the motor later in the year ( when cold air is gone ) to freshen up the bottom end. Intake is a 1 day swap for extra 15 hp that will benefit you later for future mods.

Your heads stock are about as good as my mild ported ls1 heads. I dont want to pull the heads untill the motor comes out .
Reply
Old Mar 24, 2006 | 05:19 PM
  #7  
Ksett's Avatar
TECH Apprentice
 
Joined: Sep 2005
Posts: 339
Likes: 0
Default

If I were you I would do the 90/90 setup. Right now your car is making great power and the 90/90 should be done when you do swap heads later if that's the plan. The thing I would avoid is pulling those heads unless you are swapping them with AFR's or ETP's. They are doing a pretty decent job right now with your setup and porting them is not going to gain you enough to justify the gaskets, bolts, labor, setting them up for lower compression, flycutting pistons and a tune. To do it right you will want to do it this way or you will be like a lot of others that wonder why there budget setup is making 410 rwhp instead of 450 rwhp wit premium parts.
Reply
Old Mar 24, 2006 | 06:31 PM
  #8  
Dom's Avatar
Dom
TECH Fanatic
iTrader: (2)
 
Joined: Nov 2001
Posts: 1,380
Likes: 1
From: Chicago
Default

How much power can a 90/90 setup give a stock motor and cam/heads motor?
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Mar 24, 2006 | 07:03 PM
  #9  
Jason 98 TA's Avatar
LS1Tech Premium Sponsor
iTrader: (4)
 
Joined: Nov 2001
Posts: 4,229
Likes: 4
From: Texas!
Default

Definately ported heads! We offer cnc & competition cnc valve job for $550!!
__________________
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Reply
Old Mar 24, 2006 | 07:48 PM
  #10  
Ksett's Avatar
TECH Apprentice
 
Joined: Sep 2005
Posts: 339
Likes: 0
Default

Originally Posted by Dom
How much power can a 90/90 setup give a stock motor and cam/heads motor?
I agree with the other guy that he will probably see around 15rwhp after a tune. I know of a bolton Z06 that picked up 11 rwhp from the 90\90 and that's w\ a puny stock cam. The 90\90 with a HC setup port matched is usually good for at least 20 rwhp from what I've seen.
Reply
Old Mar 25, 2006 | 11:35 AM
  #11  
REDSS01's Avatar
Thread Starter
11 Second Club
iTrader: (25)
 
Joined: Nov 2004
Posts: 460
Likes: 0
From: Pensacola, FL
Default

Originally Posted by Jason 98 TA
Definately ported heads! We offer cnc & competition cnc valve job for $550!!
Umm...sounds tempting, but would it be better to buy a brand new set from you and sell mine?
Reply




All times are GMT -5. The time now is 07:14 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