obusnizzle

http://www.babcox.com/editorial/ar/eb40228.htm

this covers up until the 3V motors....its a great reference.

06f150lariat

i have been told by several people that there is no difference in the engines whatsoever, and that the myth behind police cars having a much more potent engines than others is complete bogus, because i have a good friend that is a cop, and he says that his Police Interceptor is no faster than a regular crown vic.

obusnizzle

its probably slower....with all the crap its got.

Aubtigrz2010

Well, Kind of ran into a problem installing the f150 intake. The heads on the PI engine are bigger than the 97-03 f150s. So the intake for the f150's will not fit. So I'm gonna have to rig up the 02 Crown Vic Intake to work on the f150.

ford_anger 01

the pi cars have an x piped exhaust and they have a higher govenor... and as far as the triton... the 4.6l triton is a 2 valve engine the reg 4.6 is a 3v
so you can imagine the hp numbers are just a little different!

obusnizzle

the Police Interceptor cars have NOT gotten the 3V. Only the Mustang and Sport Trac have it.

ford_anger 01

ahh well i know that they have xpipes and a higher govnr

Stone150

well guys there is close to no differences between the motors in a f150 4.6 and a crown vic. judging by how aubtigrz saw how the intake manifold is not the same and neither are the heads. the 4.6 liter in an f150 is made entirely for torque and the crown vic has less torque with slightly higher hp

obusnizzle

if you take an 05 F150 4.6L and an 05 Crown Vic and yank the heads, they will BE THE SAME. This has been stated. The engines arent "made for torque", the difference in powerband lies in the intake manifolds only, not the heads or cams.

ALL 4.6L/5.4L(PI) 2V heads are the same, they all share the same cardioid port along with a 1.8inch exhaust port and a casting shroud in front of the exhaust valve that in turn keeps the plug kernel away from the exhaust valve.

daculatruck50

I Agree