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

Exhaust side flow ported 243's

Thread Tools
 
Search this Thread
 
Old Aug 23, 2011 | 12:42 AM
  #1  
popinsmoke's Avatar
Thread Starter
Staging Lane
iTrader: (2)
 
Joined: Mar 2005
Posts: 79
Likes: 0
Default Exhaust side flow ported 243's

Anyone know if any of the vendors will CNC port customer supplied heads and is so how much?

I have a set of 243 castings that were hand ported to some respectable intake numbers but there is quite a bit of potential left compared to the flow numbers of some of the CNC programs I have seen advertised especially on the exhaust side compared to my heads.

Or would I be better off having the exhaust done by hand and if so by whom and cost vrs CNC.
Reply
Old Aug 23, 2011 | 05:56 AM
  #2  
Darkman's Avatar
TECH Addict
iTrader: (2)
 
Joined: Apr 2009
Posts: 2,167
Likes: 6
From: Spring, Texas
Default

Talk to Total Engine Airflow or Advanced Induction - they both work on customer supplied heads.
Reply
Old Aug 23, 2011 | 10:12 PM
  #3  
sidearmbandit's Avatar
Teching In
iTrader: (1)
 
Joined: Apr 2007
Posts: 36
Likes: 0
From: Winston-Salem,NC
Default

Originally Posted by popinsmoke
Anyone know if any of the vendors will CNC port customer supplied heads and is so how much?

I have a set of 243 castings that were hand ported to some respectable intake numbers but there is quite a bit of potential left compared to the flow numbers of some of the CNC programs I have seen advertised especially on the exhaust side compared to my heads.

Or would I be better off having the exhaust done by hand and if so by whom and cost vrs CNC.
Where are you located? I just had a guy hand port and polish my 862's and he got some really nice #'s out of them. I am in NC and I can get you his contact info - I'll Pm you with his name and number. If you're interested in sending them to him, tell him Brandon (with the 862's) sent ya.
Reply




All times are GMT -5. The time now is 04:25 PM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
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-4
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-5
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-6
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-7
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-8
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-9
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