LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Flow Numbers.......

Thread Tools
 
Search this Thread
 
Old Mar 12, 2003 | 11:26 AM
  #1  
mighty mex's Avatar
Thread Starter
TECH Apprentice
iTrader: (3)
 
Joined: Dec 2002
Posts: 391
Likes: 0
From: Houston, TX
Default Flow Numbers.......

Does anybody know what a stock LT1 head with stock valves flow????
Reply
Old Mar 12, 2003 | 01:16 PM
  #2  
96SCTA's Avatar
TECH Fanatic
 
Joined: Sep 2002
Posts: 1,112
Likes: 0
From: BLOOMFIELD, NY
Default Re: Flow Numbers.......

i think it was somthing like 220 or so.
Reply
Old Mar 13, 2003 | 05:30 PM
  #3  
mightyquickz28's Avatar
TECH Addict
20 Year Member
iTrader: (8)
 
Joined: Feb 2003
Posts: 2,145
Likes: 133
From: East Chatham, New York
Default Re: Flow Numbers.......

More comparison data here....
http://www.malcams.com/legacy/misc/headflow.htm
BTW-A friend of mine just got his LT1 heads back from a local porter.
a.Stock LT1 castings
b. 2.00/1.56 stainless valves
c. porting
Results: int/exh 269/183 @.500 as flowed by Craig Gallant at GTP.(heads were not ported by GTP, just flowed there)

<small>[ March 18, 2003, 02:03 AM: Message edited by: mightyquickz28 ]</small>
Reply
Old Mar 14, 2003 | 12:57 AM
  #4  
Joe Racer's Avatar
Tenured Member
iTrader: (3)
 
Joined: Nov 2002
Posts: 124
Likes: 0
From: Ohio
Default Re: Flow Numbers.......

In stock form, with stock valves, and the factory valve job.... 203-205 peak flow at .450" lift. That's on my SF-600 bench using a radius inlet. Exhaust is 153-156 at .550" lift using a pipe.
And ported LT1 heads that supposedly flow 280+ usually flow mid 250's to low 260's on my bench.

Last edited by Joe Racer; Feb 13, 2006 at 04:31 PM.
Reply
Old Mar 14, 2003 | 11:55 AM
  #5  
solid95z's Avatar
TECH Regular
iTrader: (7)
 
Joined: Jun 2002
Posts: 406
Likes: 0
From: Austin, Tx.
Default Re: Flow Numbers.......

Mine were ported by a gentleman named Will who used to work for Westside Machine in Houston and He flowed my heads on his brand new flow bench. They flowed 276/199 @ .500. They have Ferra 6000 2.00/1.56 valves. I am going to have Craig reflow them just for comparison purposes when I drop off some heads for him to fix up for a blower motor. Either way they should work great on the new motor.

<small>[ March 14, 2003, 11:58 AM: Message edited by: solid95z ]</small>
Reply
Old Mar 18, 2003 | 01:59 AM
  #6  
mightyquickz28's Avatar
TECH Addict
20 Year Member
iTrader: (8)
 
Joined: Feb 2003
Posts: 2,145
Likes: 133
From: East Chatham, New York
Default Re: Flow Numbers.......

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif"> Mine were ported by a gentleman named Will who used to work for Westside Machine in Houston and He flowed my heads on his brand new flow bench. They flowed 276/199 @ .500. They have Ferra 6000 2.00/1.56 valves. I am going to have Craig reflow them just for comparison purposes when I drop off some heads for him to fix up for a blower motor. Either way they should work great on the new motor </font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Will's the same guy that did my friends heads I mentioned previously. We took it for a test drive. WOW!! <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" /> I need Will's number or email if you have it.
Reply
Old Mar 22, 2003 | 08:37 PM
  #7  
mightyquickz28's Avatar
TECH Addict
20 Year Member
iTrader: (8)
 
Joined: Feb 2003
Posts: 2,145
Likes: 133
From: East Chatham, New York
Default Re: Flow Numbers.......

Got Wills number and met him. Cool guy!
Reply




All times are GMT -5. The time now is 03:37 AM.

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