Thread: Engine Swap Question

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  1. #1 Engine Swap Question 
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    I have a 2007 grand prix with a N/A 3800 with a few mods. its quick but i found a guy on craigslist selling his totaled GXP and the engine and trans are not touched at all. (Pics show) he says it still starts up instantly and everything. How hard would it be to swap my 3800 out and throw in the 5.3L V8 and is it worth the time/effort. he only wants $1800 for the whole car and i can part out the interior and sell it easily.
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  2. #2 Re: Engine Swap Question 
    GTP Level Member LeadfootCJ7's Avatar
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    I don't know much on that type of swap. If you do buy it and wheels are in good shape, I would be interested in making a deal on the wheels if you were selling them.

    I would imagine you would want to swap suspension and everything. I would think it can be done and if you have the complete car, it shouldn't be too big of a deal. It just takes some time to do it.
    2007 Grand Prix GXP;2002 Camaro Z28 - tune, CAI, and exhaust
    2006 GMC 2500HD - ATS high flow manifolds and uppipes, turbo back exhaust, blocked EGR, Denali headlights, Reflexxion Cown Hood
    1994 Olds Cutlass Supreme 2 door
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  3. #3 Re: Engine Swap Question 
    Moderator dsmuts's Avatar
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    I'd talk him down to 1500 and part it out. The swap can be done but it'll be a lot of work
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  4. #4 Re: Engine Swap Question 
    GT Level Member RivMan's Avatar
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    A swap is very do-able if you have the entire car.

    You'll want to plan on swapping the entire wiring harness, ABS Pump / electronics, and the steering column.

    -Rob
    2004 GPGT - L32 Swap, CompG Trans - Click Here!
    1999 Regal - 300k miles: SOLD!
    1995 Riviera - L67 Swap, 12.9@107: SOLD!
    1999 GTP - 12.9@104: SOLD!
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  5. #5 Re: Engine Swap Question 
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    the whole front passenger side is trashed. hit a pole and totaled that. only has 3 rims idk what he did with the 1 that got destroyed. i called and left a message, no response yet.
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  6. #6 Re: Engine Swap Question 
    Moderator dsmuts's Avatar
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    Where are you located? I'd be interested in parts as well
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  7. #7 Re: Engine Swap Question 
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    Livonia mi
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  8. #8 Re: Engine Swap Question 
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    Don't forget the tcm and bcm
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  9. #9 Re: Engine Swap Question 
    Perma-Banned! JK LOL Explicit_Spade's Avatar
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    I think the GXP has a different engine crade and if that's the case, where the impact was might have bent the crade.

    I personally wouldn't take on the swap, and I'm a pretty big fan of wrenching. You can find a good condition GXP for little more than you could get selling your 07. That being said, if you want to keep modding, stick with the 3800. There aren't many go fast parts available for the LS4.
    Quote Originally Posted by W-Body Store
    Remember, GM engineers didn't take into account your need for speed.
    Daily Driver: 06 Grand Prix GT / 9.4:1 CR / IS3 Heads / Ported Gen V / ZZP Headers / HPT Pro / Pulleys: 4.25, 3.8, 3.5, 3.4, 3.2, 3.0, 2.9, 2.7
    Projects: 86 Monte Carlo SS / 98 Sonoma / 74 Honda CB750
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