400 horsepower at the crank at 5200 rpm
Everything should bolt right up.
# the 400 had 225 horse ..........the 455 had 250 horse.
If you have a 400 ci, the horse power was down to 250 with a 4 barrel carb.
1970 Pontiac catalina coupe and sedan had a standard 350 255 horsepower the 400 was optional rated at 265 horsepower
1964-1966: 389 CID. 1967-1969: 400 CID. 1970-1972: 400 or 455 CID.
20 foot pounds.
300hp
about 27
300
Assuming you are inquiring about a 2004 + GTO ... you can add between 120 and 400+ horse power. It really just depends on you needs (and wants!) and how much you are willing to spend.
No, just putting a engine with 400 horse into a nova from another car will not give you more than 400 horse.