I have the chance to get a rear end out of a 95 ex cop car with the LT1 motor in it, will i be able to fab. this rear end into my camaro pretty easily or is there major work(besides cutting stock brackets, ect. off the stock rear and putting them on the new one) also i can get the complete LT1 intake. altogether for about 300 bucks.....im almost certain that the police package car has a posi. not sure what gears tho? what the deal is, is a LT1 police package caprice, and a parts car, for about 1500 the good running car needs a fuel pump. and also what size ring gear is in the LT1 car? 8.2? 8.5? im not sure but can anyone help me out here?

 

Can you just buy the whole car?

I'd look to do a whole LT1/4L60E swap rather than just grabbing a piece or two.

I believe the rear is a 8.5" 10-bolt. Should be 3.73s with a posi in it.

 

Yeah i could get the whole car, but my brother was going to buy the complete car to drive and the parts one for extra parts and sell the ones he doesnt need on e-bay or something... and i told him id want the complete intake and the rear end. id do the whole swap if it wasnt that hard and if i didnt already have a 400 with a complete TPI setup. and aluminum heads ect. i just want the LT1 intake and have it converted. to put it on my car, first of all id need bigger injectors(LT1-24 right?) and plus id get a way better flowing intake than the stock TPI. sound like a good idea? and about the rear end. if im not mistaken the 8.5's were pretty good rear ends....would i have to worry about the width of the rear end? ill do some other research as well but any help would be greatly appreciated. as in the yoke matching up ect....

 

It's an 8.5" 10 bolt which would take too much time to install into an f-body to be worth it. No torque arm provision and lower control arm attachments are different. Also, wheel bolt pattern is 5" and not 4.75" like your car.


Again, quit posting misinformation. A 94-96 9C1 Caprice would have 3.08 rear gears.

 

hmm 3:08's and hard fitting......ill pass on that..... i just dont want to snap my rear end, i know if you be careful itll hold for a while. my brothers went with his firebird running 13.30' in 6 passes. but that was with slicks and higher rpm starts....but it broke the spider gear in half and munched it around in the carrier.... iv got a 400 going in with edelbrock heads and some other things. i dont know maybe ill just wait for the day that i trash it. what cheaper alternative would you guys suggest?

 

The 8.5" 10-bolt is a solid rear. I've seen them hold up in fullsize trucks with 38" tall tires and serious floggings off road.

Wasn't 100% sure about the gears. New it was a 10.5 posit though. That partly explains why the cop cars are so slow!

From what I've seen the LT1 intake is a good swap if you can get 6,000+ RPM out of the car. If not I would reconsider it, at least until the results are in from John Millican's test of the LT1 on a stock 350. BTW, you don't need to switch injectors to run the intake. You can run any Bosch style injector. 19s are good to 350 HP, 24s to 400, 30s to 450, ect.

 

im just going to run the 24's, my father keeps insisting that i shouldnt get the LT1 intake and that with the STOCK(Besides injectors and AFPR) itll be a monster..... what 1/4 do you think ill be running with what i have and stock tpi on it.... iv got a 400 w/ edelbrock RPM heads, compu cam 2050 (454/480 216/228) with 1.6 rockers and ill be most likely running some TES headers. with 3in off the y pipe and iv got an edelbrock exhaust system as well.... and iv got a posi with 4:11's for the 7 5/8 right now and a 5-speed..... i doubt ill run faster than a 13.30.....i only plan on going up to about 5500rpm......

 

The jury is still out on the LT1 intake on an otherwise stock motor. Based on all current theory I would advise against it, but I'm still waiting for the results of the tests John is getting ready to conduct.

Obviously the better motor will perform a lot better, and could definately benefit from the LT1 intake.

 

i might just say F it and buy one anyways. i can get one here at a pretty good price. id ont know......we'll see i guess....

 

Well, what I'm saying is that you may actually lose power with the LT1 on an otherwise stock engine. If you can get the intake for cheap definately buy it, but I'd wait to install it until you see the results of John's tests.

 

yeah im mainly looking for power between 2500-5500

 

Well, based on the tests I've seen so far the LT1 doesn't start making more power until the 5,000-5,500 RPM range. Those tests are a bit skewed though, because they compared a SuperRam to the LT1 on a highly modified engine. I'd wait to see a dyno comparison between the stock TPI and the LT1 before dropping the cash and bolting it on my car.

 

Back to rear ends for a sec.....do you absolutely need the torque arm? i mean if i think about it, couldnt you buy a set of ladder bars? and it connects at the top and bottom of the rear end for no twist.....thats what the torque arm does....correct? well if so i could probably easily put the cruiser rear in my car with no problem, if it sticks out a little o'well, other than that this isnt a big big deal. just have to make sure the driveshaft will bolt up, if not a custom driveshaft would have to be fabbed. by a local shop cause i wouldnt dare doing it myself, shake the **** right out of me. and braking....anyways so the over idea here is....get rid of the torque arm, use weld on ladder bars.... and presto.....instant 8.5in rear. ????? i know a guy running 12's with a caprice, lol its an old cop car....looks like a stock police car, spot light , front end pushbar, police wheels....nice car!

 

If it's a 95 4th gen rearend it's a 7 5/8" and it will bolt right in but thay are 1.5" wider than a 3rd gen rearend. So wheels will stick out or you could run 4th gen rims on your car.

 

nope its a 95 police package caprice with the 8.5in rear.i dont know the width of the caprice rear, but i can surely find out.

 

I thouight it was a 4th gem camaro Ex cop car? Sorry for the mix up.

 

no its alright, i think the torque arm is something people think is required, in fact it doesnt need to be there. ladder bars will do just fine if not better, puts less stress on your lower tranny mount. just my opinion i guess.....this is most likely what ill be doing.

 

What are your plans for the car?

If all you are interested in is drag racing then ladder bars will work just fine. If handlign is at all important then the torque arm setup is vastly superior to a ladder bar setup.

You can easily make or buy a torque arm mount to use on the 8.5" rear.

 

handling, naw, just gonna do some drag racing, some street, thats about it. not any moderate speed cornering, who's gonna pass on a corner anyways? lol well i was thinking either this rear, or i know where i can get an 80-81 turbo trans am rear. posi, rear disc, i forgot what gear ratio they have but i think there 3.23ish... but arent they kinda the same rear. 8.5 or 8.2 id have to check, but i can get either rear.