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

flow numbers for ported 98 heads

Thread Tools
 
Search this Thread
 
Old Feb 28, 2006 | 11:13 AM
  #1  
curtisad's Avatar
Thread Starter
11 Second Club
15 Year Member
iTrader: (4)
 
Joined: Oct 2005
Posts: 495
Likes: 0
From: Jefferson Ga
Default flow numbers for ported 98 heads

max flow for the intake is 293 and the exhaust is 202.......what does that mean exactely? How does this translate into HP and Torque??
Reply
Old Feb 28, 2006 | 11:19 AM
  #2  
PREDATOR-Z's Avatar
TECH Senior Member
 
Joined: Mar 2004
Posts: 14,620
Likes: 17
From: BFE
Default

That doesn't mean much, but if those measurements are at .600, your exhaust flow is poor
Reply
Old Feb 28, 2006 | 11:44 AM
  #3  
curtisad's Avatar
Thread Starter
11 Second Club
15 Year Member
iTrader: (4)
 
Joined: Oct 2005
Posts: 495
Likes: 0
From: Jefferson Ga
Default

I am going with a Voodoo cam 222/226 .568 with 113 separation
Reply
Old Feb 28, 2006 | 01:59 PM
  #4  
KRK's Avatar
KRK
Teching In
 
Joined: Feb 2006
Posts: 2
Likes: 0
Default Flow #'s

Stock LS1 Heads - as published

.100 .200 .300 .400 .500 .550 .600
Intake 67 122 178 215 219 223 227
Exhaust 52 97 133 156 170 176 180

Ported LS1 Heads w/ 2.02's & 1.57's - as tested by AFR

.100 .200 .300 .400 .500 .550 .600
Intake -- 132 195 240 283 296 227
Exhaust -- 120 171 200 217 -- 224

Stock LS6 Heads - as published

.100 .200 .300 .400 .500 .550 .600
Intake 62 126 184 224 251 256 257
Exhaust 57 108 143 163 176 180 183




Your #s are quite an improvement over stock... if your #'s are at .600, then the exhaust is somewhat on the low side, but still improved. And as you can see, you are out-flowing stock LS6 heads, with which alot of people are making big power. With that cam selection, you will still see significant increases in perfomance.

Last edited by KRK; Feb 28, 2006 at 02:09 PM.
Reply
Old Feb 28, 2006 | 02:13 PM
  #5  
777's Avatar
777
TECH Senior Member
iTrader: (21)
 
Joined: Jun 2004
Posts: 6,697
Likes: 2
From: Jacksonville, FL
Default

Those ported heads sure do drop off at .600 lift
Reply




All times are GMT -5. The time now is 06:56 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

The world was a better place when it was still around.

By Brett Foote | 2026-01-23 09:20:37


VIEW MORE