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police interceptor heads???

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Old 01-11-2009, 09:40 AM   #1
vanilliagorillia79
 
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Default police interceptor heads???

my 351w came out of a 1991 crown vic and was a police interceptor. i would like to know what actually made it a police interceptor? was it the fact it was a cop car with the 351w? or were there other factors in it being the "police interceptor? like the heads having bigger valves? i have already rebuilt the motor and put it in my car. 88 gt. i'll get some pics on here when i figure out how to do that. lol put anyway i had the heads ported and polished by my mechanic and i guess i should've asked my question about the heads along time ago. just thought i would ask. thanks
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Old 01-11-2009, 09:54 AM   #2
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There is no such thing as a 351w police interceptor motor. Peoplecall it that because it came out of a police car. Ford stopped installing special engines in police cars in 1972. People just never kept up with the times. They were never small blocks. The heads one your motor are stock E7 heads.
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Old 01-11-2009, 10:29 AM   #3
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so basically what came in the police car was a 351w. the motor was throttle body injected at the time. nothing special right about the motor.
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Old 01-11-2009, 10:30 AM   #4
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ur saying the motor is not a small block??
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Old 01-11-2009, 11:04 AM   #5
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Yes its a small block. Back in the day they didn't use small blocks as police motors. The heads are not considered e7, its not a 302, but they are just stock heads, nothing special.
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Old 01-11-2009, 11:33 AM   #6
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cool thanks for the help. my project originally was going back into the crown vic. i wished i would have stroked the motor instead. any idea of estimated horse power for my application? haven't had a chance to have it dyno'd. it's fast! i know that much.
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Old 01-11-2009, 11:42 AM   #7
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What all else do you have done with the car?
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Old 01-11-2009, 12:01 PM   #8
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351w bored 40 over 10:1 pistons new stock crank,stock rods, doug herbert racing cam, (lost my cam card or i would give u that info. just a mild hydraulic cam), holley 670cfm strret avenger carb(vacumm advanced), mechanical advanced msd distriutor and 6al ignition kit, trickflow underdrive pulleys,ported and polished stock heads, heads been converted to adjustable roller rockers and the rocker are of course aluminum,new pushrods, shorty headers, edlebrock performer intake manifold,1" carb spacer, new billet flywheel, new zoom high perfomance clutch kit, holley black electric fuel pump, 40 series flowmasters, 3:73 gears, t-5 transmission,3 row aluminum radiator, hell i might have forgot some stuff! lol have a few pics in my profile
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Old 01-11-2009, 02:10 PM   #9
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Well I would say maybe 260-275 at the fly but that isn't where your power is. The 351 makes an *** load of torque. Ford racing sells a complete 351 truck motor with stock thermatic heads that puts out 250hp and 350lbs torque so thats where I get my estimate. I wouldn't expect a whole lot more than but maybe I am wrong. Go to a dyno and let us know. Have you ran at the track yet?
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Old 01-11-2009, 02:27 PM   #10
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my mechanic says i should have atleast 350hp. it seems that all of my power is on the top end. it is really hard t osay. i haven't had the car back but for a month. and so far been scared to go to the track. nervous really. the car really halls *** when u kick the four barrel in. so i put a screw in the linkage to help make the 4 barrel kick in sooner. so basically i have only about 1000 miles on the new motor. and really not sure about what it can do yet. scared the **** outta my wife in it one good time leaving a stop light probably got up to 120mph. speedo stops at 85 and it was beating on the mileage reset button. the carb is set up from the factory and same for the distributor. no adjustments have been made. also if the motor is bored .40 over does that make a 357?
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Old 01-11-2009, 02:50 PM   #11
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take it from a police officer... ford crown vics are no more than a regular production crown vic. you can have the same car if you order one with the "trailer towing package". this gives you a transmission oil cooler, true dual exhaust, stiffer springs and a tad larger sway bars. and the best part of all, A CUT OFF AT 120 MPH. i can get 130 if i am going down hill.
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Old 01-11-2009, 03:52 PM   #12
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Quote:
Originally Posted by S351R13 View Post
There is no such thing as a 351w police interceptor motor. Peoplecall it that because it came out of a police car. Ford stopped installing special engines in police cars in 1972. People just never kept up with the times. They were never small blocks. The heads one your motor are stock E7 heads.
Well actually there was a 351 Windsor Police Interceptor. In 1981 Ford Built a very limited run of Ford Fairmonts with 351 Police Interceptors. The engines were listed and tagged as Police Interceptors on the air cleaner. We had three of them in the fleet of police cars we had. They had Four barrel carbs, dual exhaust and C4 transmission. They were built to go head to head against the Chevrolet Malibu 350 police model. While the 351W police interceptor wasn't a high powered engine it stil pushed a Fairmont hard enough to run just about any Late 70s Camaro or Corvette down. The only officers that had them in our fleet were the Sargents but they loved them. I've never seen any outside law enforcement and I think there were only about 1500 built. It wasn't an option for 82.The rest of our Fairmonts had the pathetic 255. My second job at the time was working in a police garage.
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Old 01-11-2009, 05:46 PM   #13
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The motor your talking about is nothing different that a 351 in a truck in 81. Its the same motor. Part numbers are the same. Now, ford did use marketing to call the car a police interceptor to try to sell them to agencies but, in reality as noted in an earlier post, it wasn't a police only option. Another thing the occured years ago was that departments would have special cars modified. Some agencies still do it but, only locals. Federal doesn't touch the powertrain. The last year for a true special interceptor motor was 1972. The 429 PI motor which was essentially a 429 Cobra Jet with a smaller carb and smaller head. It was actually a better street head. The general public could not buuy these cars till the agencies auctioned them off. I have had two of them. Very fun cars!
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Old 01-11-2009, 06:30 PM   #14
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thanks for the info. i was just wondering. the motor is all done. just something i was thinking about.
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Old 01-14-2009, 08:39 AM   #15
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275 to 300 maybe 310 to 320 being optomistic. Get the car weighed. Get it to a 1/4 mile track and use the wieght vs. MPH to find out the HP.

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Old 01-14-2009, 10:19 AM   #16
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Quote:
Originally Posted by S351R13 View Post
The motor your talking about is nothing different that a 351 in a truck in 81. Its the same motor. Part numbers are the same. Now, ford did use marketing to call the car a police interceptor to try to sell them to agencies but, in reality as noted in an earlier post, it wasn't a police only option. Another thing the occured years ago was that departments would have special cars modified. Some agencies still do it but, only locals. Federal doesn't touch the powertrain. The last year for a true special interceptor motor was 1972. The 429 PI motor which was essentially a 429 Cobra Jet with a smaller carb and smaller head. It was actually a better street head. The general public could not buuy these cars till the agencies auctioned them off. I have had two of them. Very fun cars!
Regardless of it's power (or lack of) it rolled of the assembly line as a Police Interceptor so it's a Valid 351 Windsor Police Interceptor. I personally have never seen any 80's Ford truck with a 351 4V and Dual exhaust. Now that certainly doesn't mean they didn't exsist I've just never seen one. It was a purpose built car for running down high power cars. Considering it was 1981 where power had been castrated over the previous 10 years a 230 hp 351 in a light Ford Fairmont would run down 170 hp Z28's and Corvettes without much problem. It was the Interceptor of the 80's. In all my years I've never seen a civilain version of this car and very few police versions.

I am very familiar with the 71-72 429 Police interceptor. I worked for Police Garage and use to buy up everyone that came up at auction. The Police Interceptor 429 had a few differant options like a Carter electric fuel pump and had the same engine as the 71 Lincoln MKIII. The smaller ports in the Interceptor and MKIII made more low end torque and combined with 3:00 gear ratios would push a 4 door 72 Galaxie to 140 mph. (ask me how I know, lol). I picked up one of these engines off ebay a few months back from a 71 MKIII.

I think the fastest Interceptor I ever drove was a 1969 Galaxie 428 405 Hp. It was basicly a 428 Cobra Jet with the right HP rating posted on the air cleaner. It was deturant to those guys with "Labled" 335 hp Cobra Jet Mustangs to stay away. The truth was Ford grossly underated the HP ratings so the insurance companies stayed at bay for the consumer. Not much got past the 428 Interceptor. One of the quickest police cars from 0-60 was actually the 1975 Chevrolet Nova. It had a L82 350 engine 4 bbl Quadrajet carb dual exhaust with twin cats, huge sway bars, 3:42 Posi Rear and Big wide 15 inch Goodyears.It would top out at about 110 but it was rare speeds got over that back then through the city. Unless you were driving a Vette back then you wernt getting away from that car on city streets. unless you had 10 miles of open road to stretch out the legs of your high power car. They became a favorite of the patrols. It was an excellant car and very durable.

I had one of those Novas hung on the bumper of my 428 Mercury Cougar for 30 minutes through the streets of North Myrtle Beach back in the 70's I couldn't shake him until I got on the road out of town Headed for the North Carolina state line. It took over 10 miles of on the pedal on the mat to get out of site. Of course the NC highway Patrol was waiting on me when I arrived so I just stopped about 500 feet before the state line when I saw what layed ahead. I figured I was better off spending the night in jail on home territory. lol
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Old 01-14-2009, 04:48 PM   #17
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wow cool thanks for all the info. hard to find that kind of stuff on the internet, well at least for me anyway. and i know i need to put it on a dyno or something but i had just got the car back when the tranny went out, which i knew was gonna happen just didn't expect it so soon.
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Old 01-14-2009, 08:07 PM   #18
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The neatest ex-police car I ever owned was a 62 4 door galaxie with a 406 tri power 4 speed. Baby blue ex-NC state patrol car. I drove it in high school.
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Old 01-14-2009, 08:07 PM
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