Notices

Chevy 8.1 Headers

Old 03-16-2005, 01:03 PM
  #1  
Platinum Member
Platinum Member
Thread Starter
 
Viper31's Avatar
 
Join Date: Sep 2002
Location: Millersville,MD
Posts: 381
Likes: 0
Received 0 Likes on 0 Posts
Default Chevy 8.1 Headers

Anyone added headers to their 8.1 Allison combo?
Viper31 is offline  
Old 03-16-2005, 01:20 PM
  #2  
Registered
 
BajaIceBreaker's Avatar
 
Join Date: Jan 2004
Location: Cleveland, OH
Posts: 699
Likes: 0
Received 1 Like on 1 Post
Default Re: Chevy 8.1 Headers

Yes. I just put Gibson headers on my '01.
I also added a K&N Air intake system, and a Hypertech powerprogrammer.
Mucho hp now. Big, noticable difference in power.

I think Gibson may be the only one who has headers for that truck. By the way, I have a set of used manifolds for sale.

I changed to the headers mainly because I had an exhaust leak, so I need to take the manifolds off in order to change the gaskets. Also, I just smahed my truck, so while the front clip was off, I figured I would change them.

I don't know how you are going to change them with the entire fron end together. Good luck!!!
BajaIceBreaker is offline  
Old 03-17-2005, 09:12 AM
  #3  
Performance Boat Center
VIP Member
 
Tim G.'s Avatar
 
Join Date: Jan 2003
Location: Ft. Lauderdale, FL
Posts: 1,777
Received 17 Likes on 5 Posts
Default Re: Chevy 8.1 Headers

I put a Banks system on my '00 454.. Good headers. They probably have a set up for your truck.. Not cheap, but they hold up. 1" flanges...
I also put the banks set up on my '94 454. Bigger results with that truck.
__________________
Tim Gallagher
Performance Boat Center-FL
[email protected]
954-809-8739
Wright Performance, MTI, Cigarette, Sunsation
Tim G. is offline  
Old 03-17-2005, 11:13 AM
  #4  
Registered
 
Join Date: Jul 2002
Location: Troy, Mich
Posts: 2,728
Likes: 0
Received 6 Likes on 5 Posts
Default Re: Chevy 8.1 Headers

Try T. Byrne motorsports.

Also on the Chevy avalanche fan website:chttp://www.chevyavalanchefanclub.com/cafcna/index.php/topic,31719.0.htmllub

Wannabe

PS NO SMART A$$ remarks on Avalanches
wannabe is offline  
Old 03-17-2005, 12:33 PM
  #5  
Registered
 
Join Date: May 2003
Location: NY
Posts: 113
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Chevy 8.1 Headers

Hell how can you afford headers after filling the tank so much...lol Just kidding I just traded my 02' with the 8.1 for an 05' with a D-Max becasue of the mpg I was only seeing 9-10 mpg without the boat.... The 285's didn't help much....
kilroy is offline  
Old 03-17-2005, 12:45 PM
  #6  
Platinum Member
Platinum Member
Thread Starter
 
Viper31's Avatar
 
Join Date: Sep 2002
Location: Millersville,MD
Posts: 381
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Chevy 8.1 Headers

I had a Banks setup on my 460 Ford that worked real well, but they don't have a kit for the 8.1. I was hoping to find someone who has tried the new Stainless Works long tube headers.

http://www.stainlessworks.net/GM%20N...vy/GMC_Trucks_
Viper31 is offline  
Old 03-18-2005, 08:05 AM
  #7  
Registered
 
BajaIceBreaker's Avatar
 
Join Date: Jan 2004
Location: Cleveland, OH
Posts: 699
Likes: 0
Received 1 Like on 1 Post
Default Re: Chevy 8.1 Headers

The Gibson headers I used aret he shorties. They are a direct bolt up from the stock manifolds. The tubes are not that long, and definately not equal length. I got mine from Stylin' Concepts. http://www.stylingconcepts.com/

Last edited by BajaIceBreaker; 08-20-2007 at 09:29 PM.
BajaIceBreaker is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Boomer35
Trucks, Trailers and Transportation
3
11-21-2007 12:39 PM
offthefront
General Boating Discussion
3
05-24-2006 03:40 AM
open87
Trucks, Trailers and Transportation
5
04-01-2006 12:24 PM
baja27
General Boating Discussion
2
06-10-2004 02:56 PM
GEORGE YURICK
General Boating Discussion
12
04-17-2002 03:44 PM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Quick Reply: Chevy 8.1 Headers


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.