The GXP is supposed to be a destroked 4.6L Northstar engine to 4.4L. It is a DOHC V8 and does not require to be supercharged. Northstar'* make 300HP easy so it should be near there. Probably a little lower initially until Cadillac ups the power in their cars.

I have not followed the information on the GXP either, because I just bought a 2002 SSEI over the Christmas holiday. However, the May issue of GM High-Tech Performance (GMHTP) has an article on the GXP. The GXP according to (GMHTP) is going to be a 2004 and rushed into production for an early 2004 release. The magazine gives the specs on the motor as a 4.4 liter 32-Valve, Quad-Cam V8engine, with 285 hp, 290 lb.-ft. The transmission is going to be the 4T80E 4-speed auto. The estimated price is $38,000.00 - $43,000.00. I hope this helps! Now I am off to find some info on Headers and a pulley!!!!

That'* sad they are getting rid of the supercharger. Maybe they will start making the SE like an SSE, and the SSE like the SSEi?

My dream car, within practical reason, is an SSEi. Even though the GXP is great, I still want to get a Bonnie with boost.

I alredy want to do a conversion for my car for that

I don't know, the Northstar engine was not designed for performance in mind. Yeah the 4T80E, but alot of companies have already invested the time and have made the 4T65E bullet proof so I don't see the problem? And the Series II */C engines (L67) are so cheap anyways, who cares? And you can easily make alot of power out a L67 but no one has even poked it yet. I was thinking of maybe taking a L67 and making it RWD using the Camaro V6 Tranny/Drivetrain to hook it all up and drop it in an older car so don't have to worry about smog. Turbo it and see how far and fast it will go. So will have 400HP at least L67 w/ RWD and no smog issues.

38 to 43,000? what tha hell? did the bonneville move to cadillac? yea, that must be it, the all new cadillac Bonneville Gxp sounds good to me (with a price like that)



I'ts Mista soo sad to hear a price quote like that!

Easy, the Bonneville needs to be differentiated from the GTP and such. So they put a V8 in it, and they can because of newer technology reducing smog emissions. But also because most like the Monte Carlo SS and Impala SS will get the L67 option in 2004. :P

Ok hear ya go..

4.6l in any w body or h body 15000.00 and it will run perfectly. Smog is your problem but it will all be stock and the computers (after the pros are done) talk just fine. In California you will have to get a different insurance but it will smog as a caddy and it will be road legal. I am soon offering the cams for the 4.6 and in a Bonneville there is room to swap bigger headers on the 4.6. Hector is right about the transaxle and yes you can strap a 4.6 or LS1 to it. Both can be strapped to a 4t60-e or 4t65-e and the 4t80-e as well. Actually we can run that kind of hp through a 4t45-e in a Grand Am. I also have the only 4t80-e that has a limited slip and a 4t60-e with a limited slip. My transaxles are serious cost but they are very strong. Most of our good stuff is not on the site yet but it is coming and if you want a 4.6 or LS1 in an older Bonneville let me know. I believe if you go with the 3.8 you can do just fine and unless you want 800 or more hp it is just a matter of choice. Personally I find the 4.6l more appealing so I did the research and made the connections most are satisfied with a 3.8. Don’t get me wrong if you really want it you can get 1000 hp out of a 3.8 but the cost is up there. 1200hp out of a 4.6 is cheaper and more reliable. I will never see either I plan on a 600hp 4.6l More than enough and I can strap it to my 4t60-e too.


You can strap a Weiand sc to the 4.6 as well and that is serious fun. That’* 600hp with 9psi and that is very conservative psi. The torque is awesome!!


Hear is a taste of gm thought...

Just over 2 1/2 million dollars spent on the R&D for the extra hp they got out of their new 3.8 series 3. Ouch !! So you and I can get that capability on a series 2 for alot less. Don’t ever try and understand the machine known as bureaucracy it is commonly misunderstood and GM is full of it.


Ty

A beefed up se?!?!?!?!.... Hardly. However, the gxp is devoid of the body cladding the 00+ bonnevilles come with. HID foglights. It is still on the fwd platform and rumor has is that the engine is suppose to be a 4.4 Destroked Northstar. Gm has not confirmed this. I think it is ridiculous to spend all of that money and time to destroke a 4.6L so the pontiac will not have as much h.p. and torque. If they wanted it to have less they could have just tuned it out differently and not had to worry about destroking and engine. Would have saved money. I think Pontiac will have their own 4.4L V8. It might be in the Northstar family but i think it will be different.

Joe--94 SSEi $4700 OBO
http://www.hometown.aol.com/atticus07/bonneville.html

317-403-2618