GM Truck Club
THE PREMIER CHEVY TRUCK & SUV FORUM
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 3 of 3

Thread: Header Mod

  1. #1

    Default Header Mod

    I thought about putting a LT1 from a 94 Roadmaster in to switch with my 98 4.3L V6 in my 98 Chevy Silverado 2WD, but instead, want to explore the V6 a little more. I am currently working on modifying a long tube SBC header/Hedman to fit my V6. I working on getting the V8 header and fabricate it to fit the V6 by removing one tube, don't know which one yet, just ordered Felpro 1402 header gasket to gasket match the header. The shortys are okay but would like to have a little more torque that the long tube will offer. Will hook up possibly 2 cats and run 2 muffler 3 chamber over to rear axle and dump them to the sides behind the rear tires. Has anyone done this header stuff? I know that there are benefits to this. While I'm doing that, the 4.3 does not offer any good heads, and read HOTROD articles of them getting close to 500 HP out of this V6. I am going to get another set of V6 heads and port them somewhat, get the only available cam a Comp Cam 266 or 260 and see what this will do.

  2. #2
    Legend
    murdog94's Avatar
    Join Date
    Feb 2008
    Location
    Cloquet, Minnesota, United States
    Posts
    8,198
    Blog Entries
    12

    Default

    Ive read about people making the kind of power you are talking about but most of them are running forced induction... But keep us posted and take lots of pics..
    Mike

    Currently

    1997 Chevy S-10 Blazer 4X4 with 330K miles and counting (Hunting rig).

    2009 Saturn Aura XE (wifes car)

    2011 F-150 Crew 4X4

    "Hold it to the floor till you see God.... Then Brake!!!!"

  3. #3
    Legend

    Join Date
    Feb 2008
    Location
    Red Wing, Minnesota, United States
    Posts
    3,356

    Default

    It should work, as the 4.3 is just a 350 with 2 cylinders chopped off
    99 K1500 Suburban LT "THE BEAST"
    Hypertech III, K&N, true dual
    285/75/16
    ___________________________
    Jason

Similar Threads

  1. After Header Problems...
    By ippielb in forum Performance & Fuel
    Replies: 20
    Last Post: 06-18-2010, 04:45 PM
  2. Header help
    By mitchlbuck in forum GM Powertrain
    Replies: 7
    Last Post: 05-28-2010, 11:42 AM
  3. Header question!?!
    By BLKDOUTZ in forum General Chevy & GM Tech Questions
    Replies: 3
    Last Post: 04-27-2010, 02:32 PM
  4. Replies: 1
    Last Post: 04-19-2009, 09:29 PM
  5. HEADER
    By doug in forum Chevy Colorado Forum (GMC Canyon)
    Replies: 2
    Last Post: 07-23-2006, 05:40 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •