Results 1 to 7 of 7

Thread: ly6 WS6

  1. #1
    Member
    Join Date
    Feb 2007
    Location
    austin
    Posts
    524

    Black/Black
    '00 Firebird WS6 T/A

    ly6 WS6

    Hey ya'll, i've been having hard-to-find drivetrain issues lately and I'm on the fence here - i know a tranny builder and i think i can pick up an ly6 for 1500-2000 bucks.

    what i'm thinking is basically pull the drivetrain out of the car, send the tranny off to get bulletproofed, swap the big ass injectors etc whatever i need from my ls1 to the new motor and bolt it back in, ready and raring to go.

    Anybody done this before? I'm damn excited to find a stock, junker motor that is readily available that should apparently be compatible with my tranny/pcm. What are the snags I'm gonna hit along the way?

  2. #2
    Senior Member justinmc978's Avatar
    Join Date
    May 2009
    Location
    college station, tx
    Posts
    2,557

    sold: 1999 firebird
    1998 Trans Am

    Gen IV motors wont be as compatible with your pcm as you think they are, I havent heard of anyone using a LY6 truck motor in an Fbody, (although I have heard of Gen IV LS3 swaps so it is possible) typically LQ4 or LQ9 motors are used because they are gen III motors like the LS1 and are cheaper than newer Gen IV motors..

    these truck motors are Iron not Aluminum llike LSX blocks are, very popularly used for boosted or bored out motors... but not for just heads, cam and intake setups...

    me personally, I wouldn't through all that trouble just to have a stock or even a bolton truck motor in my car.

  3. #3
    Sold: LS1 '85 El Camino ls1camino's Avatar
    Join Date
    Dec 2005
    Location
    Laurel, Maryland
    Posts
    4,975

    2000 Grand Prix GTP
    2000 Trans Am WS6 M6

    Quote Originally Posted by justinmc978 View Post
    Gen IV motors wont be as compatible with your pcm as you think they are.
    What?

    They're perfectly compatible...granted you have to get them tuned to match the motor, but besides that everything works fine. Ask me how I know.
    2000 Pontiac Trans Am WS6 M6: 427ci LS3, Built T56, Moser 9" w/ 4.11 Gearing, Full Suspension, and 6-point Cage.
    2000 Pontiac Grand Prix GTP: Twincharged w/ a T67 Turbocharger
    2007 Chevrolet 3500 Dually Duramax: 3" Downpipe, Dual 4" Exhaust, EFILive Tuning

  4. #4
    Senior Member justinmc978's Avatar
    Join Date
    May 2009
    Location
    college station, tx
    Posts
    2,557

    sold: 1999 firebird
    1998 Trans Am

    Quote Originally Posted by ls1camino View Post
    What?

    They're perfectly compatible...granted you have to get them tuned to match the motor, but besides that everything works fine. Ask me how I know.
    I just assumed with the VVT he might run into issues, didn't say it wouldn't work by anymeans though, relax, I think OP just thinks you can get the PCM flashed once and youre good to go. things like the dash gauges in our cars are notorious for being incompatible with a lot of newer GM technology. might take a few hours of playing around with an HP tuner to get everything calibrated right.

  5. #5
    expensive tires az gt eater's Avatar
    Join Date
    Mar 2006
    Location
    phoenix
    Posts
    1,951

    white
    04 2500 4x4 crew cab

    Quote Originally Posted by justinmc978 View Post
    these truck motors are Iron not Aluminum llike LSX blocks are, very popularly used for boosted or bored out motors... but not for just heads, cam and intake setups...

    me personally, I wouldn't through all that trouble just to have a stock or even a bolton truck motor in my car.
    times two, justin speaks the truth.

  6. #6
    Member
    Join Date
    Feb 2007
    Location
    austin
    Posts
    524

    Black/Black
    '00 Firebird WS6 T/A

    Quote Originally Posted by justinmc978 View Post
    I just assumed with the VVT he might run into issues, didn't say it wouldn't work by anymeans though, relax, I think OP just thinks you can get the PCM flashed once and youre good to go. things like the dash gauges in our cars are notorious for being incompatible with a lot of newer GM technology. might take a few hours of playing around with an HP tuner to get everything calibrated right.
    Sounds about right. Thanks for the info...

    Plans for the car are to get it running as a DD with the most durable motor possible, then eventually go balls out with a big shot of nitrous or turbo - so it would be nice to have the iron block with forged whatnot at that point but I think the LQ9 probably sounds the best for that application and is likely available the cheapest. Just gotta get some cash flow goin on and it'll be all good.

  7. #7
    🤔 11s. blackbirdbrain89's Avatar
    Join Date
    Sep 2007
    Location
    hagerstown, mercersburg
    Age
    35
    Posts
    1,845

    black trans am
    2000

    a gen 3 and 4 use 2 diffrnt crank pick ups and cam pick up place ment

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Bookmarks

Posting Permissions

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