68 GTO fit in a 2004 Grand Prix GTP

Asked by Jun 25, 2015 at 10:38 AM about the 2004 Pontiac Grand Prix GTP

Question type: Car Customization

I have to get a new engine for my 2004 GTP pontiac.. and i was wondering  if a 68 GTO
engine Block can fit into a 2004 Grand Prix GTP Supercharged?

4 Answers

33,605

No. Everything on that newer engine is run by computer. The older engines didn't run by computer. Even if you did bolt in in there, the transmission will not work either. Older engines were mounted front to back. New engines are usually mounted sideways. If your car is front wheel drive, there's no way that engine can be mounted that way to your existing transmission. Not to mention your entire wiring harness will be useless. You need another engine like the one that came with the car.

1,435

Those engines are very different, I don't believe you can mix & match the old with the new.Also transmitions are different. You can install anything into anything IF you have a lot of cash & willing to do some welding mods. I'd stick with something comparable from 2004. The 2004-06' GTO uses a Chevrolet LT-1 V8.

33,605

Not sure what you have for GTO parts kicking around, but, if you have a complete GTO engine with a tri-power, you may be able to sell it and have enough money to put in the same engine that originally came with the car. Just a thought. Does the top of the engine look like this pic? If so, it's worth some serious money.

1,435

Old 66' GTO's were 389's, & tri--power (3, 2 bbl Rodchecter carbs) & 67' changed too 400's, & were a 4 bbl Quadra-jet carb. Both not as much hp as LT or LS series Chevrolet V8's as in the newer HSV high perf cars. ref: Holden Special Vehicals, of Austraila. They have a GTO pickup called the "Maloo'", very cool but right hand drive.

Your Answer

Add photo

Related Questions

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 3,773 nationwide Grand Prix listings starting at $1,195.

ZIP:

Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Js08016
Reputation 3,770
#2 Tom Demyan
Tom Demyan
Reputation 2,520
#3 munron
munron
Reputation 2,010
View All

Related Models For Sale

Used Chevrolet Impala
965 Great Deals out of 36,457 listings starting at $1,800
Used Pontiac Bonneville
3 Great Deals out of 669 listings starting at $2,298
Used Chevrolet Monte Carlo
15 Great Deals out of 1,730 listings starting at $1,695
Used Pontiac G6
132 Great Deals out of 4,962 listings starting at $999
Used Pontiac Grand Am
1,716 listings starting at $1,995
Used Chevrolet Malibu
1,124 Great Deals out of 79,772 listings starting at $2,495
Used Pontiac GTO
10 Great Deals out of 498 listings starting at $5,900
Used Ford Mustang
713 Great Deals out of 38,572 listings starting at $1,963
Used Chrysler 300
502 Great Deals out of 21,026 listings starting at $1,500
Used Nissan Maxima
430 Great Deals out of 25,098 listings starting at $1,500
Used Chevrolet Tahoe
1,091 Great Deals out of 31,949 listings starting at $1,495