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#12145 - 02/08/04 11:29 AM Options for V8
jpf51684 Offline
Junior Member
Registered: 01/29/04
Posts: 6
Loc: Cincinnati OH
Not really planning on doing much over the winter (no $$$) but i was wondering what kinda options, if any, a Grand Prix owned has for upgrading to a v8?


02 grand prix GTP
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2002 Grand Prix GTP
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#12146 - 02/08/04 01:36 PM Re: Options for V8
why2kmax Offline
Member
Registered: 05/01/03
Posts: 589
Loc: Bel Air Maryland
buy a GTO or Bonny GXP. wink

The only FWD trans that Ive seen fitted to a V8 is the 4T80E mated to the Northstar in the caddys. That trans wont fit in the Grand Prix, only the bonneville, which is why that bonny GXP can be a V8.

IMO FWD V8 is prob out of the question. Unless you can do a lot of fabricating and make that trans fit, or make the car RWD.

GM made two prototype FWD V8 Impalas (2000+) using a northstar and an LS1. both were FWD but I think the Impala is the same size/class/body as the Bonneville and both used the 4T80E.

Jeff
_________________________
2000 GTP Coupe traded for a 2004 GTO
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#12147 - 02/08/04 02:10 PM Re: Options for V8
Bryan R Offline
Member
Registered: 02/08/03
Posts: 309
Loc: Portland
When I was at the Portland Auto Show, they had an 04 Grand Prix, that had a 4.6 Litre Northstar V8 in it. It was the "Rally Edition" GTP. They said it probably will lose the V8 in production tho. They didn't know if it was a 4T65E tranny or the 4T80E tranny tho... Other than the engine, that GTP had a sweet body kit... Next time I'll have to bring my camera...

cheers

bryan
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#12148 - 02/08/04 08:08 PM Re: Options for V8
jvojr Offline
Member
Registered: 07/31/03
Posts: 583
Loc: Catskills, NY
There is someone in New Hampshire that took a 2004 GTP and converted to an LS1 V8 and rear drive. How does that sound? Expensive.
_________________________
JackO
2004 GTP CompG. WS6, 3.29 axle, HUD, tapshift, Premium sound, XM radio, leather, sunroof, 17inch 5 star chromies, BFG Comp T/A. Wizaired CAI.

Traded in. 2003 GTP. Every option but HUD. New Mods: Wizaired CAI, SLP Headers, Cat, U-bend and Downpipe, 3.2 Modular Pulley, Phase 3 rollers w/OR Pushrods, Larger Belt Tensioner Pulley, Gatorback, AL103's, 180 Degree Stat, DHP
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#12149 - 02/09/04 03:16 AM Re: Options for V8
jpf51684 Offline
Junior Member
Registered: 01/29/04
Posts: 6
Loc: Cincinnati OH
what kinda expensive devilgrin
_________________________
2002 Grand Prix GTP
Black
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#12150 - 02/09/04 11:34 AM Re: Options for V8
grandprixse Offline
Member
Registered: 02/05/04
Posts: 92
Loc: miramchi nb canada
It was done on an Impala, also a W-body.
http://www.gmhightechperformance.com/features/0303GMH_homerun/
i'm also looking in to a v8 swap
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#12151 - 02/09/04 12:11 PM Re: Options for V8
jvojr Offline
Member
Registered: 07/31/03
Posts: 583
Loc: Catskills, NY
I found out on ebay. There were a couple of GTP engine/trannys complete for sale. In one of desciptions it said that the motor and trans was taken out of a brand new 04 GTP because the owner was putting in a new LS1 V8 with a rear drive conversion. I just looked on ebay and the motors are gone now. I was going to get the guy's e-mail address and post it so you could ask but it's gone. Sorry. I'll keep looking.
_________________________
JackO
2004 GTP CompG. WS6, 3.29 axle, HUD, tapshift, Premium sound, XM radio, leather, sunroof, 17inch 5 star chromies, BFG Comp T/A. Wizaired CAI.

Traded in. 2003 GTP. Every option but HUD. New Mods: Wizaired CAI, SLP Headers, Cat, U-bend and Downpipe, 3.2 Modular Pulley, Phase 3 rollers w/OR Pushrods, Larger Belt Tensioner Pulley, Gatorback, AL103's, 180 Degree Stat, DHP
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#12152 - 02/09/04 12:31 PM Re: Options for V8
grandprixse Offline
Member
Registered: 02/05/04
Posts: 92
Loc: miramchi nb canada
http://www.fastfieros.com/news.htm they have info on the ls1 swap if you have any other info email me at keveyj55@hotmail.com
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#12153 - 02/09/04 12:41 PM Re: Options for V8
jvojr Offline
Member
Registered: 07/31/03
Posts: 583
Loc: Catskills, NY
Aside from the Fieros, all the W bodies are still FWD. The guy on Ebay said he converted to RWD. I'll keep looking.
_________________________
JackO
2004 GTP CompG. WS6, 3.29 axle, HUD, tapshift, Premium sound, XM radio, leather, sunroof, 17inch 5 star chromies, BFG Comp T/A. Wizaired CAI.

Traded in. 2003 GTP. Every option but HUD. New Mods: Wizaired CAI, SLP Headers, Cat, U-bend and Downpipe, 3.2 Modular Pulley, Phase 3 rollers w/OR Pushrods, Larger Belt Tensioner Pulley, Gatorback, AL103's, 180 Degree Stat, DHP
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#12154 - 02/09/04 12:46 PM Re: Options for V8
grandprixse Offline
Member
Registered: 02/05/04
Posts: 92
Loc: miramchi nb canada
fast fiero is gonna offer a w body ls1 swap kit
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#12155 - 02/21/04 01:50 AM Re: Options for V8
jvojr Offline
Member
Registered: 07/31/03
Posts: 583
Loc: Catskills, NY
Here's the ebay ad from the same guy in New Hampshire. He sold everything but the motor. You should e-mail him and find out some info on the V8/rear drive swap and tell us about it.
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=2461687225&category=33615
_________________________
JackO
2004 GTP CompG. WS6, 3.29 axle, HUD, tapshift, Premium sound, XM radio, leather, sunroof, 17inch 5 star chromies, BFG Comp T/A. Wizaired CAI.

Traded in. 2003 GTP. Every option but HUD. New Mods: Wizaired CAI, SLP Headers, Cat, U-bend and Downpipe, 3.2 Modular Pulley, Phase 3 rollers w/OR Pushrods, Larger Belt Tensioner Pulley, Gatorback, AL103's, 180 Degree Stat, DHP
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#12156 - 02/21/04 01:59 AM Re: Options for V8
jvojr Offline
Member
Registered: 07/31/03
Posts: 583
Loc: Catskills, NY
I e-mailed him for any info. I'll keep the post open if I hear back.
Jack
_________________________
JackO
2004 GTP CompG. WS6, 3.29 axle, HUD, tapshift, Premium sound, XM radio, leather, sunroof, 17inch 5 star chromies, BFG Comp T/A. Wizaired CAI.

Traded in. 2003 GTP. Every option but HUD. New Mods: Wizaired CAI, SLP Headers, Cat, U-bend and Downpipe, 3.2 Modular Pulley, Phase 3 rollers w/OR Pushrods, Larger Belt Tensioner Pulley, Gatorback, AL103's, 180 Degree Stat, DHP
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#12157 - 02/21/04 05:41 PM Re: Options for V8
jvojr Offline
Member
Registered: 07/31/03
Posts: 583
Loc: Catskills, NY
I got an e-mail back from the guy doing the V8 to GTP conversion(posted below). Sounds amazing.

Jack,
At this point it is a body sitting in the shed and the custom
frame is being built on the frame table. It is very involved as all
the heater box assembly and alot of the floor has to be removed. We
will be using a vintage air system that should fit under the dash on
the right side for ac and heat. Firewall has to be modified by being
moved back about 4" and a custom tunnel fabricated. It will be about
1 year in the making. We are trying for an almost stock exterior
(with the exception of the wheels) and at first glance, a stock
interior. The surprise will be when someone jumps on the throttle. I
am going to document it but will hold picture release till the
vehicle is up and running. Thanks for asking. John
_________________________
JackO
2004 GTP CompG. WS6, 3.29 axle, HUD, tapshift, Premium sound, XM radio, leather, sunroof, 17inch 5 star chromies, BFG Comp T/A. Wizaired CAI.

Traded in. 2003 GTP. Every option but HUD. New Mods: Wizaired CAI, SLP Headers, Cat, U-bend and Downpipe, 3.2 Modular Pulley, Phase 3 rollers w/OR Pushrods, Larger Belt Tensioner Pulley, Gatorback, AL103's, 180 Degree Stat, DHP
Top
#12158 - 02/21/04 11:40 PM Re: Options for V8
AustinGTP Offline
Member
Registered: 05/23/03
Posts: 8077
Loc: Austin, TX
I'd like to know the total cost he will end up with once it's all done.
Although what he's doing sounds very interseting.
_________________________
Bobby

Died 5/1/08, resurrected 5/15/08
ASCD SD hood, 17" Bullitts, Overkill PCM, 3.4" Pulley, NGK TR55IX, K&N 9" cone filter, JimmyC D/P, U-bend removed, Flowmaster 40 series, Hooker big bore tips with resonators, S/B brake lines, drilled/slot rotors, GMPP handling kit, KYB struts, F&R strut supports, HID's, LED's, 2.5" Air Dam, red GTP overlays on custom badges, white rear insert.
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