P.I Engines and power ratings

[1987stangman]

I have surfed the need a lot trying to understand this. My 96' GT is in great shape but has over 225k on the clock now. What I want to do since I plan to keep the car is buy a new P.I motor for it and I plan on doing this in the next 2-3 weeks. I have found a 50k mile P.I engine from a 04' Crown Vic. So far I have read that the P.I engines in other Ford cars and trucks are the same right down to the cam grinds and intake. My concern is that the 'Stangs are rated around 260HP and the 04' Vics are rated at 224HP. What gives on the numbers? Some say it's tune, exh, etc, etc but does Ford not rate thier engines at the crank? It would make sense that the cams may be different but the info I have seen is that a P.I motor is a P.I motor so if anyone out there would be kind enough to school me on this I would be greatfull.

 

[patman0911]

The engines are the same where it matters as far as a swap is concerned (block, heads, cams, intake manifold) but have different exhaust setups, induction systems and tunes which is all reflected in HP ratings. Factory ratings are at the crank but the engines are tested dressed as the would be in that vehicle. A PI motor out of a CV will make Mustang power in a Mustang.

 

[1987stangman]

I guess I will go with it then. Looks like I will have to buy a tuner as well.

 

[trinity_gt]

The engines are the same where it matters as far as a swap is concerned (block, heads, cams, intake manifold) but have different exhaust setups, induction systems and tunes which is all reflected in HP ratings. Factory ratings are at the crank but the engines are tested dressed as the would be in that vehicle. A PI motor out of a CV will make Mustang power in a Mustang.

Mustangs, trucks and 'Vics have different intake manifolds AFAIK. I think the OP would want to keep his current PI manifold if swapping in a longblock from another chassis.