Thread: GT motor into GTP

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  1. #1 GT motor into GTP 
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    Im dropping a 98 gt motor into a 99 gtp. the gtp split the piston in half because the previous owner is an idiot. Anyway i got the GT motor for free and it runs strong so thats why its going into the gtp. I plan on top swapping it later with a series 3 GTP top end when i have more time. everything should bolt up correctly if i have done my research right. just wanna double check with some folks who have more experience than me
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  2. #2 Re: GT motor into GTP 
    GTX Level Member EJOUIE's Avatar
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    PCV stuff will be different I think. Anyone confirm?

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  3. #3 Re: GT motor into GTP 
    GrandPrix Junkie CrazyGuy03's Avatar
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    Wby not swap the top end to the l36 before install?
    2003 Buick Regal GSX lots of mods - click here to see latest build - http://www.grandprixforums.net/threa...ld-for-the-gsx

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  4. #4 Re: GT motor into GTP 
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    Because i'm broke from buying Christmas stuff lol. But i also dont know if the trans is any good yet either. the guy that had the car before me is an idiot. to give you an idea he forgot a lower intake gasket on the gtp enigne....
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  5. #5 Re: GT motor into GTP 
    GrandPrix Junkie CrazyGuy03's Avatar
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    Oh

    Well if it were me, I would take both engines and swap the l67 stuff to the l36 IF the heads aren't damaged
    2003 Buick Regal GSX lots of mods - click here to see latest build - http://www.grandprixforums.net/threa...ld-for-the-gsx

    *For Reference - Does not have a Zack Howard Cam - It's an Intense Stage 3 - Thank You*
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  6. #6 Re: GT motor into GTP 
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    well i have everything from the heads up off a gen 3 gtp comp g including the supercharger. besides if i wait i can make sure everything is done right instead of rushing it. but next time the motor comes out im doing a cam and E85
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  7. #7 Re: GT motor into GTP 
    GrandPrix Junkie CrazyGuy03's Avatar
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    Ok

    I guess I was thinking if you had both engines out, you can easily take the gtp parts off and put them.on the gt engine.

    The series 3 supercharger and intake manifold could go on later when you get those parts since you plan on doing a cam
    That way it's pretty much the same engine, same tune until you swap superchargers and cams
    2003 Buick Regal GSX lots of mods - click here to see latest build - http://www.grandprixforums.net/threa...ld-for-the-gsx

    *For Reference - Does not have a Zack Howard Cam - It's an Intense Stage 3 - Thank You*
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  8. #8 Re: GT motor into GTP 
    I break things. WarStryker13's Avatar
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    If you're trying to just get it on the road, drop the L36 in there.

    I hope you have a tuner...

    04 GP GT2: Handling upgrades, go-slow parts, and an attitude. Totaled.
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  9. #9 Re: GT motor into GTP 
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    already have the pcm on the way to zzp
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  10. #10 Re: GT motor into GTP 
    GrandPrix Junkie CrazyGuy03's Avatar
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    What's a pcm go for? Cheaper then some gaskets?
    2003 Buick Regal GSX lots of mods - click here to see latest build - http://www.grandprixforums.net/threa...ld-for-the-gsx

    *For Reference - Does not have a Zack Howard Cam - It's an Intense Stage 3 - Thank You*
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  11. #11 Re: GT motor into GTP 
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    Quote Originally Posted by WarStryker13 View Post
    If you're trying to just get it on the road, drop the L36 in there.

    I hope you have a tuner...
    Sigh...
    2003 Buick Regal GSX lots of mods - click here to see latest build - http://www.grandprixforums.net/threa...ld-for-the-gsx

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  12. #12 Re: GT motor into GTP 
    Killa Bee Scottydoggs's Avatar
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    you need to swap the l67 flex plate or the the tc wont bolt up right. bolt pattern is not the same. the fuel lines wont reach right, but can be dealt with. evap is on the front, vs the rear of the gtp, so longer pig tail (cut and splice more wire) or move the evap. the map sensor, you need a l36 pig tail swapped in place of the gtp's.

    other then those things its a direct swap.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  13. #13 Re: GT motor into GTP 
    GrandPrix Junkie CrazyGuy03's Avatar
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    But hey it's simpler
    2003 Buick Regal GSX lots of mods - click here to see latest build - http://www.grandprixforums.net/threa...ld-for-the-gsx

    *For Reference - Does not have a Zack Howard Cam - It's an Intense Stage 3 - Thank You*
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  14. #14 Re: GT motor into GTP 
    Killa Bee Scottydoggs's Avatar
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    Quote Originally Posted by CrazyGuy03 View Post
    But hey it's simpler
    right lol no way id just drop a l36 in, its out and it sounds like you got the top swap parts already, so buy head gaskets and do it now. you should be doing the lim gaskets on the l36 anyways. whats two more gaskets and new bolts?

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  15. #15 Re: GT motor into GTP 
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    I could only lead a horse to water .....
    2003 Buick Regal GSX lots of mods - click here to see latest build - http://www.grandprixforums.net/threa...ld-for-the-gsx

    *For Reference - Does not have a Zack Howard Cam - It's an Intense Stage 3 - Thank You*
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  16. #16 Re: GT motor into GTP 
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    well, i guess i might as well. ill have to get payed again and email zzp and have tell them to change the tune. I do have the heads and all from a 05 gtp, i guess i would buy head gaskets for a 05 gtp?
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  17. #17 Re: GT motor into GTP 
    Killa Bee Scottydoggs's Avatar
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    the only other thing you should get is headers. or tell zzp your running stock manifolds. headers will help a ton tho.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  18. #18 Re: GT motor into GTP 
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    good thing the car already has full exhaust
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  19. #19 Re: GT motor into GTP 
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    ive read on other forums and such that the fly wheel has to be balanced to the motor or you could mess up your crank, bearings, ect. is that true?
    Last edited by IKeelULotz; 12-04-2016 at 02:51 PM.
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  20. #20 Re: GT motor into GTP 
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    Quote Originally Posted by Scottydoggs View Post
    you need to swap the l67 flex plate or the the tc wont bolt up right. bolt pattern is not the same. the fuel lines wont reach right, but can be dealt with. evap is on the front, vs the rear of the gtp, so longer pig tail (cut and splice more wire) or move the evap. the map sensor, you need a l36 pig tail swapped in place of the gtp's.

    other then those things its a direct swap.
    This?


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