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Thread: 8.1 Liter?

  1. #1
    Join Date
    Apr 2006
    Posts
    29

    Default 8.1 Liter?

    what does 8.1 come in and what is that? a 7.3 is a 454 so what is an 8.1?
    GMC sierra 3500 6.5td 3" lift 33x12.5 swabb mudders 4" exahust and air intake

  2. #2
    Join Date
    Oct 2000
    Location
    Pittsburgh, PA USA
    Posts
    98

    Arrow

    GM 454ci = 7.4L

    GM 8.1L = 496ci
    2016 Chevy Colorado Z71, 2.8 Dmax

    Former Diesels:
    2014 Chevy Cruze 2.0TD
    2009 VW Jetta TDI

    Former Trucks:
    1972 GMC C-1500 LWB, 350 gasser, TH-350, 3.73's SOLD long ago
    1985 GMC K-1500 SWB, 305 gasser, SM465, 4" lift, eight lugs fr & rr. SOLD long ago

  3. #3
    Join Date
    Apr 2006
    Posts
    29

    Default

    what was the 8.1 offerd in?
    GMC sierra 3500 6.5td 3" lift 33x12.5 swabb mudders 4" exahust and air intake

  4. #4
    Join Date
    Jul 2001
    Location
    Windsor, Colorado, USA
    Posts
    572

    Default

    2500HD and 3500 Trucks, 2001-2006 + 2007 Classic
    2500 Suburban, Yukon XL and Avalanche 2002-2005 (Not quite as sure on the years)
    Express/Savana 2003-2006

    Also GM Medium Duty Trucks, not sure when it started, maybe 2002, thru present.
    2002 GMC Sierra 2500HD CC D/ZF SB Fire Red 2WD no longer the fastest stocker up the hill at the TDP Pull Off. -sold-
    2004 Chevy Suburban 5.3L 2WD
    1996 GMC Sierra 1500 5.0L 5sp 2WD LB

  5. #5
    Join Date
    Apr 2001
    Location
    Newberg Oregon
    Posts
    12,294

    Default

    Depending on what you need for power and or what you want to stuff it in. Get a crate 502 engine, they are available in a variety of power levels. And will work with almost any GM rig

    These beasts are a force to be reckoned with for sure.

    Local fellow here has one stuffed in a 95 Tahoe (2door) and its been tweeked a bit more than the law allows He has a 4L80 buckled up behind it with a stand alone computer.

    I believe he has, last I heard, a Holley 4 hole TBI up top to fuel the beast.
    All the factory computer stuff is gone off the truck. He has it real simple and easy to keep running.

    The thing is a sleeper and will eat just about anything.
    The give away is the two huge pipes coming out the back and the sound is awesome.

    I do believe he has a worked over 14 bolt in the rear.
    I know for fact that the original rear gear box went away shortly after the 502 went to work up front.
    He has a 6.5 diesel radiator in it cooling the beast too.

    I have driven it once and it brings back memories of long ago when big power was the everyday thing.

    Coming out of the hole I dont think I have seen any newer rigs that will even come close to touching it.

    Maybe a Vette or some such beast but no SUV is gonna even get close

    The engine was a 502/502 when he bought it but I dont have a clue what all has been done to it since it went into the Tahoe.
    Its very thumpy sitting there idleing.

    Other than the strange deep rumble it has you can't tell its anything other than an inocent little Tahoe from the outside.

    Not even any tweeky looking 20 inch rims just stock GM alloys.

    Later
    Robyn
    (1) 1995 Suburban 2500 4x4
    (1) 1997 Astro
    (1) 2005 Suburban (Papa Smurf)
    THIS IS BOW TIE COUNTRY

  6. #6
    Join Date
    Nov 2006
    Location
    Kelowna, BC
    Posts
    1,070

    Default Pics

    You couldb't get some pictures of it could you?
    1993 HD2500- 4X4, Nv4500, rc/lb, Lots of mods, killed her. Awaiting her TT rebuild!

    2002 Camaro L36/M49- Killed In Action

    1995 HD2500 - 4X4, NV4500 rc/lb, GL4, Turbo, exhaust

    1994 HD2500- 4X4, NV4500, ec/lb

  7. #7
    Join Date
    Apr 2001
    Location
    Newberg Oregon
    Posts
    12,294

    Default

    Dont know, I will see if I can catch up to him and snag some pix
    (1) 1995 Suburban 2500 4x4
    (1) 1997 Astro
    (1) 2005 Suburban (Papa Smurf)
    THIS IS BOW TIE COUNTRY

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