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427

This is a discussion on 427 within the GTO forums, part of the Vehicle Specific category; Did the factory ever put a 427 into a GTO?...

  1. #1
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    427

    Did the factory ever put a 427 into a GTO?

  2. #2
    Former Mopar Man 2002ssslp's Avatar
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    Silver & Blue
    02 Camaro SS, 04 GTO

    NO. 389,400, 455, and LS1 & LS2. I do not count the Ventura GTO because it was just cosmetic.
    My ride is a 2002 Camaro SS SLP #3296 with 30k, LTH, 3" Y, CME, Frost tune, K&N, ported TB, Blackwing lid, Bellows, MSD, Denso Iridium, and 85mm MAF, Bilsteins, Eibach springs, SLP strut brace, Adj. Panhard, TA Girdle, UMI, Pro 5.0, Nitto NT555
    My wife has a 2004 GTO with the rare SAP, 18" wheels, K&N Cold Air System, MSD, Ported TB, Frost tune, Denso Iridium, Flowmaster cat-back, 3200 Yank, 75k

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    2004-2006

    I should have said newer GTO's. I have seen a bunch of 427 04's on youtube. I guess they are all engine transplants.

  4. #4
    Member Texas Jack's Avatar
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    Cyclone Grey
    2006 GTO M6

    Quote Originally Posted by johnfin View Post
    Did the factory ever put a 427 into a GTO?
    You can get a lsx 427 iron block that is bad a-- for a transplant and it is a great fondation for na and fi and it a shoe in for our cars or anything that uses the ls platform. Think there is an alum verison also not sure someone will chime in.

  5. #5
    Member GTO1_OHIO's Avatar
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    Phantom Black Metallic
    2004 GTO

    My ERL 427 is a standard aluminum LS2 block

  6. #6
    Smiles for 9.5 Years cammed goat's Avatar
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    Not from the factory. However folks have dropped LS3s, LS7s, LSx427 and LSx454s in their goats.
    Last edited by cammed goat; 02-10-2013 at 05:46 PM.

  7. #7
    Junior Member Strykerg8GT's Avatar
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    Stryker Blue
    2009 G8 GT

    The LS7 was an option for the Aussie version of the G8, it was called the W427. It was done by Holden Special Vehicles (HSV) and is extremely rare. I know its not a GTO but that's as close as it came for late model Pontiacs.
    Last edited by Strykerg8GT; 02-10-2013 at 07:26 PM.

  8. #8
    Sold: LS1 '85 El Camino ls1camino's Avatar
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    Quote Originally Posted by Texas Jack View Post
    Think there is an alum verison also not sure someone will chime in.
    I have an LS3 427. Great N/A motor...I'm just shy of 600rwhp naturally aspirated.

  9. #9
    Member Texas Jack's Avatar
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    2006 GTO M6

    Quote Originally Posted by ls1camino View Post
    I have an LS3 427. Great N/A motor...I'm just shy of 600rwhp naturally aspirated.
    Sweet, how did you build it fill me in on the specs.
    ingalls torque dampner, bmr drag bags, bmr sfc, harrop diff cover, pedders bushings, lingenfelter cia, kooks signature coated headers, kooks catted mids, kooks street screamer 3'' cat back, billit catch can, magna charger super charger, tuned byReckart in Austin,tx 535wrhp and 525rwt, at 7 psi.

  10. #10
    Sold: LS1 '85 El Camino ls1camino's Avatar
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    2000 Grand Prix GTP
    2000 Trans Am WS6 M6

    Quote Originally Posted by Texas Jack View Post
    Sweet, how did you build it fill me in on the specs.
    Texas-Speed built it. Most of it was standard, off-the-shelf parts, except for the pistons. I had them made for high compression (11.8:1 static). If I would do it over again, I would not use cathedral port heads, but rather LS3/L92 square port heads. They flow a lot better, but they were a little out of my budget at the time. The price has come down a lot since 2011.

    Basics of my motor:
    - LS3 427
    - PRC 237cc Cathedral Heads
    - Heavily Ported FAST102 Intake and Throttle Body
    - Custom Grind Cam
    - 2" Primary Headers, 3.5" Collectors, 3.5" Custom Y-pipe, 4" Exhaust

  11. #11
    Sold: LS1 '85 El Camino ls1camino's Avatar
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    Maybe in a few years I'll swap out my Intake and Heads for something better flowing than what I currently have.

  12. #12
    Member Texas Jack's Avatar
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    Cyclone Grey
    2006 GTO M6

    Quote Originally Posted by ls1camino View Post
    Texas-Speed built it. Most of it was standard, off-the-shelf parts, except for the pistons. I had them made for high compression (11.8:1 static). If I would do it over again, I would not use cathedral port heads, but rather LS3/L92 square port heads. They flow a lot better, but they were a little out of my budget at the time. The price has come down a lot since 2011.

    Basics of my motor:
    - LS3 427
    - PRC 237cc Cathedral Heads
    - Heavily Ported FAST102 Intake and Throttle Body
    - Custom Grind Cam
    - 2" Primary Headers, 3.5" Collectors, 3.5" Custom Y-pipe, 4" Exhaust
    OH i think that would work for me, nice set up for sure. Sweet!!!!!!!

  13. #13
    Smiles for 9.5 Years cammed goat's Avatar
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    Phantom Black Metallic
    2004 GTO M6

    HSV W427=SICK CAR!!!

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