I have a 96 LT1 and 4L60E out of a chevy caprice that was formerly a police motor.. is it the same motor as in a regular caprice and camaros? or does it have a better chip or torque conerter or anything thats different? anybody know? any help would be appreciated.. im puttin it in my 71, thanx...

------------------
71 hugger orange z28, 350, headers, holley street dominator intake, 1.94 heads, q-jet

Motors are mechanically the same, 9C1 or regular 'Caprice' LT-1....there were some other options (like increased oil cooling, bigger trans cooler, bigger brakes, etc).

But inside, they're all the same iron headed LT-1......

also, remember
99% of all police motors are detuned b4 being sold to the public

can't have people outrunnin the cops with their own motors http://www.nastyz28.com/ubb/wink.gif

------------------
Click here, it'll explain it all (http://img.photobucket.com/albums/v628/luda79/sig.jpg)

<font face="Arial,Verdana" size="2">Originally posted by luda:
also, remember
99% of all police motors are detuned b4 being sold to the public

can't have people outrunnin the cops with their own motors http://www.nastyz28.com/ubb/wink.gif

</font>

They are? How the heck do they do that? It's not like an LT1 Caprice is a rocketship or anything to begin with. So let's see they are what 260 from the factory and when they are detuned they are???????

I think someone BS'ed you on that some time ago.

The LT1 as was mentioned is the same motor setup as a standard LT1. I had a B4C Camaro. Same motor as the Z28. Same intake leaks, same rear main seal leaks, same opti spark disaster, all the same bullshit. Man, I don't miss that car.

Hopefully that fixed all that by 96. Really go through that motor prior to install. I would not even think of just bolting it it. I'd tear it down and check everything and for sure replace that damn Optispark.

<font face="Arial,Verdana" size="2">Originally posted by Rick WI:
I'd tear it down and check everything and for sure replace that damn Optispark.</font>

With a VENTED unit http://www.nastyz28.com/ubb/wink.gif

And they can't be de-tuned....lol....not like there's alot of 'tune' in it.....what they CAN'T outrun is the radio http://www.nastyz28.com/ubb/wink.gif

<font face="Arial,Verdana" size="2">Originally posted by Rick WI:
They are? How the heck do they do that? It's not like an LT1 Caprice is a rocketship or anything to begin with. So let's see they are what 260 from the factory and when they are detuned they are???????

I think someone BS'ed you on that some time ago.

The LT1 as was mentioned is the same motor setup as a standard LT1. I had a B4C Camaro. Same motor as the Z28. Same intake leaks, same rear main seal leaks, same opti spark disaster, all the same bullshit. Man, I don't miss that car.

Hopefully that fixed all that by 96. Really go through that motor prior to install. I would not even think of just bolting it it. I'd tear it down and check everything and for sure replace that damn Optispark.</font>

haha, u got ripped then
the only stock engine cars here are the impalas, caprices, the odd vehicles (trucks, jeeps, etc.) and most crown vics

state patrol doesn't screw around in NC...there's 500+hp Camaros floating around as well as a few Cobras. I even heard they have a 600+hp 3rd gen somewhere in the state, but that's only hearsay. i've seen the other cars with my own eyes. and yes, when a camaro or cobra goes out of commission, it's detuned. (performance parts removed, stock replaced). they may leave a few parts on such as exhaust but that's about it.

------------------
Click here, it'll explain it all (http://img.photobucket.com/albums/v628/luda79/sig.jpg)

[This message has been edited by luda (edited June 29, 2005).]

<font face="Arial,Verdana" size="2">Originally posted by luda:
also, remember
99% of all police motors are detuned b4 being sold to the public

can't have people outrunnin the cops with their own motors http://www.nastyz28.com/ubb/wink.gif

</font>

No they're not, that would actually be a violation of the Clean Air Act, unless GM certified the recalibration. Not likely on a high mileage used car.

It's got a cop motor, a 440 cubic inch plant, it's got cop tires, cop suspensions, cop shocks. It's a model made before catalytic converters so it'll run good on regular gas. What do you say, is it the new Bluesmobile or what?

<font face="Arial,Verdana" size="2">Originally posted by luda:
state patrol doesn't screw around in NC...there's 500+hp Camaros floating around as well as a few Cobras. I even heard they have a 600+hp 3rd gen somewhere in the state, but that's only hearsay. i've seen the other cars with my own eyes. and yes, when a camaro or cobra goes out of commission, it's detuned. (performance parts removed, stock replaced). they may leave a few parts on such as exhaust but that's about it.

</font>

You live in a good state, where I live, if you get caught with a non CARB approved part on a 1968 or newer car, they won't issue an inspection sticker. This includes police cars too, I turned in a game warden that had a cat-back on his pickup (after I got hassled over the wrong tire size 235 on a factory 225 door tag!)

<font face="Arial,Verdana" size="2">Originally posted by camdoc:
You live in a good state, where I live, if you get caught with a non CARB approved part on a 1968 or newer car, they won't issue an inspection sticker. This includes police cars too, I turned in a game warden that had a cat-back on his pickup (after I got hassled over the wrong tire size 235 on a factory 225 door tag!) </font>]

haha, what can i say? i love my state. http://www.nastyz28.com/ubb/biggrin.gif

and actually, i'm pretty certain the cops modify their own cars here. they get an order from their sources and then pick a couple to modify. those vehicles can't be stock when a '93-'97 Z-28 State Trooper Patrol Car catches my friend runnin' 170mph in a 400hp Thunderbird like he's standing still. lol http://www.nastyz28.com/ubb/biggrin.gif

------------------
Click here, it'll explain it all (http://img.photobucket.com/albums/v628/luda79/sig.jpg)

<font face="Arial,Verdana" size="2">Originally posted by camdoc:
No they're not, that would actually be a violation of the Clean Air Act, unless GM certified the recalibration. Not likely on a high mileage used car. </font>

it's not against that act to modify it for high speed chases and then restore it to stock later on. to tune it less than stock would probably be against it though. and the pursuit cars aren't really high mileage. they usually camp out on interstates or major highways waiting from either another cop to ask for help or until they find a victim of their own.

------------------
Click here, it'll explain it all (http://img.photobucket.com/albums/v628/luda79/sig.jpg)

I seriously doubt the cops are worried about the public getting ahold of their ultra powerful 4000 lb '96 Caprices with the bad ass 265 Hp LT1. I doubt in fact that they would care if some shmuck got ahold of one of those 500 Hp Cobras. It's not like there aren't a fair number of very fast cars already on the road. You just can't run in a car, it's too big.

In instances where performance parts are removed, the cops probably shelled money out of pocket for them and want to resell or keep the parts.

BTW to the thread starter. As far as I know, the caprice LT1 was the same motor as was offered in the Impala SS of that year and the Camaro, the difference being that the camaro probably had a smaller alternator and better exhaust. The '96 LT1 in the camaro is rated at 285 Hp whch is usually attributed to the improved flow of the two cat exhaust introduced that year.

[This message has been edited by ChillPhatCat (edited June 29, 2005).]

actually it was a wrecked car , and we took everything for another project but now its goin in the camaro.. thats good to know its the same though. thanks guys.. anybody know what kind of fuel pump i should use. i dont want a in tank, would like a inline.. any suggestions would be great.

<font face="Arial,Verdana" size="2">Originally posted by luda:

haha, what can i say? i love my state. http://www.nastyz28.com/ubb/biggrin.gif

and actually, i'm pretty certain the cops modify their own cars here. they get an order from their sources and then pick a couple to modify. those vehicles can't be stock when a '93-'97 Z-28 State Trooper Patrol Car catches my friend runnin' 170mph in a 400hp Thunderbird like he's standing still. lol http://www.nastyz28.com/ubb/biggrin.gif

</font>

170 mph in a T-Bird? Caught him like he's standing still? What made-for TV movie of the week did you see this in? http://www.nastyz28.com/ubb/rolleyes.gif

------------------
'Silver Bullet' 1977 Z-28 413" SB
11.73 @ 115.10 on drag radials
Old Vortec combo:
12.15 @ 110.52

Get a Bosch, only way to go in my opinion. Quiet, ultra reliable and not very costly. Call Earls Performance at 317-241-0318.

I like folklore stories of 170 MPH run downs in 400 HP cars. That gives me a chuckle.

Wow it's getting deep in here http://www.nastyz28.com/ubb/smile.gif


While I'm sure theres still some LEO's who modify their vehicles & a few PD's(for performance) it's pretty rare. It's more common to use impounded or siezed cars that happen to be modified. The last time I heard anything verifiable about PD's getting any modified cars in quantity were certin Federal agencies that had Turbo Buicks with different chips.

"Police Package" cars do often have the top speed limiters removed though.


As for the 96 Caprice engine/trans it will be exactly the same as the Civilian Caprice/Impala SS engine. What you do want to verify though is if you have a 4.3 or 5.7. They appear almost identical on the outside. A 5.7 block will have "327" on the side of the block and 57LG on the top rear behind the head. If yo still have the car you can check the VIN. If the 7th digit is a "W" it came with a 4.3. The code for 5.7's was "P"

All 94-96 Caprice/Impala's came with a vented optispark.

If its the original block it will have 2 bolt mains, some replacement blocks came with 4 bolts



[This message has been edited by A100 (edited June 29, 2005).]

Correct me if I'm wrong, but didnt F-body LT1's have aluminum heads, while the B-bodies all got iron? I thought that & the air intake were the only differences http://www.nastyz28.com/ubb/confused.gif Heck, I had a LT1 4th gen & I cant remember!

A friend of mine recently got a 95 Caprice cop car. We just added some 2 1/2" exhaust & a tune up and the big 4200 pound titanic scoots. It wouldnt surprise me one bit if this boat could pull off a 14 second ET.

Its all about the torque man http://www.nastyz28.com/ubb/wink.gif Horsepower is for benchracing, torque gets it done!

------------------
11.74/118mph, thats all..

<font face="Arial,Verdana" size="2">Originally posted by Quick Nick:
Correct me if I'm wrong, but didnt F-body LT1's have aluminum heads, while the B-bodies all got iron? I thought that & the air intake were the only differences http://www.nastyz28.com/ubb/confused.gif Heck, I had a LT1 4th gen & I cant remember!

A friend of mine recently got a 95 Caprice cop car. We just added some 2 1/2" exhaust & a tune up and the big 4200 pound titanic scoots. It wouldnt surprise me one bit if this boat could pull off a 14 second ET.

Its all about the torque man http://www.nastyz28.com/ubb/wink.gif Horsepower is for benchracing, torque gets it done!

</font>


The f & B bodies also have a different camshaft, head gaskets are thinner. Theres a bunch of other small differences as well.

This site has a pretty good description of all the different LT1's

http://www.automotiverebuilder.com/ar/ar99928.htm


I have no doubt that car youre talking about can go 14's the way it is.... my 96 Impala is a bit quicker than that with no internal engine modifications http://www.nastyz28.com/ubb/biggrin.gif

<font face="Arial,Verdana" size="2">Originally posted by luda:
also, remember
99% of all police motors are detuned b4 being sold to the public

can't have people outrunnin the cops with their own motors http://www.nastyz28.com/ubb/wink.gif

</font>

When you get time, I'll explain it all to you.

Brian
(Sworn in - Ohio peace officer)

<font face="Arial,Verdana" size="2">Originally posted by BrianBerry:
When you get time, I'll explain it all to you.

Brian
(Sworn in - Ohio peace officer)</font>

lol
lately i have nothing but that so please go ahead...i'm not above learning more on any subject...except rednecks and country music..BAH!
but r u sure Ohio policies match that of NC?

and trust me guy, if my dad's '70 Grand Prix with 375hp/500ft lbs and 3.73s will keep climbing after droppin off the speedometer @ 150, this car will do 170. and i never said my friend attempted to lose the officer, he started slowing down about the time the lights started getting close enough to read thunderbird. officer clocked him @ 169 but didn't give a ticket since he just got the maro and hadn't had a chance to let it breath yet. and if u think he's lying, well, he's an honest guy without reason to lie. but this isn't the topic...

just for those of you who think cops don't modify their cars, in wilmington, there's a trooper camaro running a level 2 super charger and is bottle fed. they have lots of street racing probs there. http://www.nastyz28.com/ubb/biggrin.gif as a matter of fact, i'm pretty certain this is the car that ran my buddy down.

------------------
Click here, it'll explain it all (http://img.photobucket.com/albums/v628/luda79/sig.jpg)

[This message has been edited by luda (edited June 29, 2005).]

<font face="Arial,Verdana" size="2">Originally posted by luda:


and trust me guy, if my dad's '70 Grand Prix with 375hp/500ft lbs and 3.73s will keep climbing after droppin off the speedometer @ 150, this car will do 170.
</font>

At 150 mph your rpm's would be just over 7500, they don't build them like they used too.

http://smiley.onegreatguy.net/popcorn.gif

OK, DIRECTLY FROM LEFT FIELD...............

I had this 72 Brown Pinto Wagon as a first car. I rejetted it and put a header on it (no sh*t that's the truth actually) anyway, it was still slow and wouldn't run to 7500. It was an ugly brown color.

But it was a wagon so it was fun to party in the back with the seat down after football games. Window tint was not in vogue back in 73. Too bad, that might have saved me from getting busted with beer in the back on time. That really pisses parents off.

OK return to your regular station.

<font face="Arial,Verdana" size="2">Originally posted by theflash:
At 150 mph your rpm's would be just over 7500, they don't build them like they used too.

http://smiley.onegreatguy.net/popcorn.gif </font>

Yeah but you forget - that was the "Secret Squirrel" engine with built-in scramjet option. The engine was yanked out of a wrecked NC trooper car found ditched on the side of the road. Apparently some good ole boy from Georgia in a '72 Pinto wagon with tinted windows and the "super scret squirrel" engine option blew its doors off.

At that point, apparently Rick bought it and took it back to Wisconsin.

Maybe I have the story all wrong. Oh well, time to hit the reclino dyno, remote in hand, and check out the movie of the week.

http://www.nastyz28.com/ubb/cool.gif



------------------
'Silver Bullet' 1977 Z-28 413" SB
11.73 @ 115.10 on drag radials
Old Vortec combo:
12.15 @ 110.52

laugh all you want guy, i'm not making this crap up about trooper cars. i'm not by any means saying most are built race cars...most aren't. but every now and then, you'll come across one. and my mistake, it was a sherriff in an SS w/ a level 1 super charger and 2 bottle system that caught him.

i was wrong about detuning most camaros. though some are detuned for parts, most are junked because they get ran ragged.

and as for the 7500 rpm...i don't doubt it with my dad. he didn't have a tach so he ran it to hell many times, hence why the engine blew. ran a 400 after that. wish my aunt hadn't thrown away all the 455 parts. http://www.nastyz28.com/ubb/frown.gif


ps-apparently there's a trooper viper in Asheville. and all this info on cars is from a cops mouth.

------------------
Click here, it'll explain it all (http://img.photobucket.com/albums/v628/luda79/sig.jpg)

<font face="Arial,Verdana" size="2">Originally posted by luda:
lol

and trust me guy, if my dad's '70 Grand Prix with 375hp/500ft lbs and 3.73s will keep climbing after droppin off the speedometer @ 150, this car will do 170. </font>

Air-drag horsepower goes up as the CUBE of velocity! A 375HP (gross) 70 GP wouldn't do 170MPH if you dropped it out of a plane.


just for those of you who think cops don't modify their cars, in wilmington, there's a trooper camaro running a level 2 super charger and is bottle fed. they have lots of street racing probs there.

Sounds like someone rented F&F last night....

[This message has been edited by camdoc (edited June 30, 2005).]

screw it, believe what y'all want
speed enough through NC and find the truth

[This message has been edited by luda (edited June 30, 2005).]

Now, I KNOW from personal experience that NC used to run 5.0L's as state trooper cars cuz I've seen them. And I know Cali ran 4th gen Z's as state cars as well.

In VA there was a red 5.0L and an Astro van that worked as a team in the mountains. The van would clock you and the stang would chase you down. Confiscated? I dunno, I just know I saw the lights and the dark tint on those cars myself....

I know in L.V. that they had 3rd gens running on the hiways with the state boys there with lo-profile light bars.

And of course, in Fla they use confiscated cars all the time http://www.nastyz28.com/ubb/wink.gif Hell, for THAT matter, where do you think they get all the nice D.A.R.E. cars from? Personal donations http://www.nastyz28.com/ubb/wink.gif

I'd be willing to bet a night in the slammer that those cops were tugging your cranks all the way to the break room that night....lol....

EDIT - and another sign that a Caprice has a 5.7 - it has DUAL EXHAUST. The 4.3's had a single. I learned ALOT searching the web looking up info on them a while back.

[This message has been edited by rscamaro73 (edited June 30, 2005).]

http://www.grandviewprep.net/newsite/publications/issue2/eight/impact/police%20cars.html

Welp your story fits your name:
Ludicrous
adj
absurdly ridiculous: utterly ridiculous because of being absurd, incongruous, impractical, or unsuitable

[This message has been edited by Joekool (edited July 03, 2005).]

Actually you said 99% which would in turn be most. I have an ex-police caprice and belong to the impalassforum http://www.impalassforum.com/cgi-bin/ultimatebb.cgi?action=intro . And most police cars are only detuned as far as destriping and removing other police equipment. Most all of your lt1 questions are already answered there. Jeff

<font face="Arial,Verdana" size="2">Originally posted by luda:
and trust me guy, if my dad's '70 Grand Prix with 375hp/500ft lbs and 3.73s will keep climbing after droppin off the speedometer @ 150, this car will do 170.
</font>

I'm going to go out on a limb here & offer the possibility that the speedo gears were still set up for a 2.73 rear http://www.nastyz28.com/ubb/smile.gif I had a 70 GP 455 & theres no way the car is going 150 much less 170 http://www.nastyz28.com/ubb/smile.gif


Ford Mustangs & Camaros for that matter were available in Police packages so seeing them in service is not uncommon http://www.nastyz28.com/ubb/smile.gif