I have a 1992 Camaro RS. The transmission I have is a Raptor 700R4 w/ 2800 stall converter. I won't know the exact specs of the transmission until Monday. Currently I am planning and researching to convert to a LT1. I have located a 94-95 LT1 with cast iron heads for and a 93-94 LT1 with al heads. Both are $1900, but neither comes with the ECU or wiring.
First question: Does anyone know where to purchase a complete engine with ECU and wiring? I am still checking locally and no luck so far.

I have read, that when making the conversion and using the 3rd gen A/C unit, that I would have to bang in the frame to allow for the A/C compressor to fit.
Second question: Would it be possible to use a 4th gen A/C compresser? If so, would this allow the engine to fit without modifying the frame?
I am also converting to the A/C from R12 to R134a.
Third question: Would this have any effect on the swapping?

I also read that I would have to modify the dash wiring to be compatible with the LT1. I am also planning on switching the interior (dash, console, door panels, gauge cluster) also. It would be most helpful if someone could point me in the right direction. I'm trying to have a list of all the parts I need in advance. It would be easier and plus I can locate parts and save money. Thanks for the help.
I am still reading other posts that have been made.

 

I read the following website, http://lt1powered85z.cz28.com/custom.html and am needing some clarification on some things.

He states: One thing that is for sure is that if you're planning on installing an F-Body LT1 with ALL of its accessories, you're going to have to move and modify your existing passenger side motor mount/frame. I am guessing that he is meaning: To get the engine to fit in the car, when using F-Body accessories and A/C, the frame on the passenger side has to be pounded down, not very much, but some. It is just a small corner of it, on the passenger side, right next to the A/C compressor. The engine will not fit if this is not done.

He also states: If you want to go with the Corvette LT1 and accessories, you won't have to move the mounts, but instead will have to change the exhaust slightly. The mount will have to be moved rearward a little, to allow for the A/C compressor and lines to fit without problem.

So am I understanding this correctly, that if I used the Vette LT1 and Vette accessories, that I wouldn't have to pound the frame to allow for the A/C compresser to fit? If I am correct in understanding this, what would be a good year Vette LT1 to purchase?

Next he states: Among the list of things that need to be converted, is the A/C, for one, if you want it. I chose to keep it the first time, but have since decided that it's not something that I have to have. After you figure out the lines and such, to match up with your existing canister, then you'll have to have the system overhauled to match up with the R134a, since you have the better, in my opinion, R12. Since I plan on converting the A/C to R134a would I need to worry about this step? Would my existing A/C lines and the Vette A/C compresser be compatible with a R134a A/C setup?

 

The LT1 swap is a mess. The 4h gen compressor of an Fbody LT1 will not fit without modification. The wiring is a mess if you want to use 4th gen wiring. I am currently undergoing this swap. It is a mess. But can be done.

 

I'm thinking of going with the Vette LT1. So would it still be the same headache with the compressor? Also, since I plan on switching the A/C from R12 to R134, would my current A/C lines be compatible? The A/C compressor would already be for a R134 setup.

 

Found this out. Using a Vette LT1 will provide less of a headache. The A/C compressor is on top of the Vette Lt1 motor, as to the fbody LT1 the compressor is on the bottom.

Would I need to change the harmonic balancer? Also, would the valve covers, oil pan, timing cover and engine accessories be compatible with the Vette LT1?

 

Go to www.hpsalvage.com lots of good info. Click on swap tips and follow it down to putting an LT1 into a 82-92 f-body

What we did on my LT1 swap was to lower the engine down to it barely touched the the x member and used some chalk to mark out on the x member where the AC compressor was hitting and then we used a cutting torch to cut out that area, then once we got clearance we weilded some material back on to fill it in.That will take care of the AC. Also if you can live without AC there is an AC delete pulley and you wont have to do anything but remove the AC compressor put the pulley on and drop the engine in. One other thing is to buy a Caprice passengers side motor mount. The part # is on the website listed above......good luck

 

I don't understand why you people say it is a mess. there's in total something like 35 wires to hook up. that's it.

I declare the flag

I had problems myself with the wiring but just because I wasn't hooking up the right cables together. If I would had check everything before doing it, it would have worked first shot.

 

I totally agree with you matt. The wiring is actually pretty simple once you know what your doing. I went through hooked everything up and it cranked over first try, but didnt start. I forgot the fuel pump relay wire. Hooked it up fired right up. I have the AC on the car though it will not be operational till this winter. I used an air grinder to notch the frame. A few test fits and it was good to go. This swap is pretty straight forward once you do some research and take your time. I do not think a Caprice motor mount works. I have heard it will not that is why I modified the stock one. ake it to a place tht fixes AC to have the car converted over.

 

The Caprice motor mount worked for me

 

I had three wiring problems, all of them my fault I think.

First was I didn't hook up the orange power wire which powers the PCM (wondered why I couldn't reprogram the PCM).

Second was my fuel pump power wire was never actually hooked up to anything (carbed 85 Car), I hooked the LT1 fuel pump power wire to it.

Finally, my cooling fan relays weren't getting any power. I'm not sure if this was my fault or the wires were messed up when I got them.

 

I stnad corrected I have never heard of anyone that used it. I will remember that.

 

since the wiring was so easy anyone wanna convert my 1990 chevy swb 2wd tbi harness to a lt1 harness

 

It's a mess to an unmotivated monkey maybe, the swap itself is pretty damn easy with some will power and a halfway decent attention span anyone can do it.

 

pocket's got some good ltx swap threads in the LTx/LSx swap section of the forum. everything should be pretty straight forwards if you take the time, and label your wiring