my friend has a lt1 for sale for bout 800 dollars he said he hit a tahoe goin 30 and the front end is smashed he said its just frame but hes a the lt1 with an automatic tranny since the lt1 is 93 does the t56 tranny have to be from 93

 

no, the T56 can come from 93-97 f-bodys.
93 is the oddball year, it has a weaker T56 and has 2 different sets of gear ratios due to the fact that you could get the T56 with 2.73 and 3.23 gears in 1993.
94-2002 T56 F-bodys all had the same ratio and the cars came with 3.42 gears.

If you put an auto behind the 93 using the 93 ECM, then you have to use an auto from an 84-93 V8 f-body.

 

93-97

 

if 94-2002 is all the same style cant i use one of them or is it just 93-97 will fit the 93 lt1

 

so i should shoot for like a 95 t56 and anyone know how much work im in for but im down to learn i just want to get this done as fast as possible and how much of a chance do i have to destroy my car with this? thanks for all the information

 

Only the '93-'97 will fit behind an LT1, the '98-'02 models have a different input shaft and throwout bearing assembly.

 

for sure thank you

 

As stated above the 93-97 6-speed versions fit with no mods.
The '93s did not come T-56 equipped they were called M-28 and M-29
they had a steeper gear ratio than the T-56.

The '93 F-cars came with 3.23s w/ manuals
'94-97 F-cars came with 3.42s w/manuals


If you pick up this Lt1 do yourself a favor and do a '95-'97 timing chain,dowel pin,chain cover and vented opti totally ditch the non vented style. The opti can also be completely removed by using www.eficonnection.com Ls1 pcm conversion.

 

Or if you want to save time instead of dropping all that work and money, spend the $125 for the MSD cap and rotor that you need to replace on that high mileage opti anyways. It incoorporates and installs the vent hoses on a non-vented opti.

 

M28 and M29 were the RPO codes for the 93 cars with the T56.
M28 T56 came in cars with 2.73 gears
M29 T56 came in cars with 3.23 gears.
MN6 is the RPO for the 94-97 (probably the 98-02's as well)

 

They were all T56 transmissions, just different gear ratios, the '93 models were the same transmission in the Cobras.

 

anybody have a t56 tranny or any idea how mcuh it will cost

 

going rate is about $1500 for a complete transmission, bellhousing, clutch hydraulics, etc. setup.

 

you can find deals as low as $800 for a complete T56 swap.
That's what I paid for my setup.
But like Texas LT1 said, $1500 is the going rate for a complete swap setup.

 

so thast how much it would cost just for the tranny swap..? not including engine or nothing am i better off going with a 350tbi with the digital Fuel Injection system?
would that be cheaper and i would still need a t56 tranny for the 350 right? AND DO YOU KNOW IF A AUTO TRANNY FROM A 93 4L60 will fit into a 88 IROC-Z 5.0 tpi STOCK

 

the 4L60 is the same thing as a 700R4, they just changed the name. As for going with a 350 tbi, it may not be legal in Cali since these cars didn't come with 350s with a TBI setup on it. Would be the same as putting a 5.3 or 6.0 LS based motor into a Camaro, since they are truck motors they aren't legal to put into a passenger car.

 

lt1 is legal for me to do right
and is it 1500 just for the transmission swap so its gonna be 3000 for everything engine and tranny plus all wiring

 

I give 2200 for my LT1/T56 combo, it came out of Trans Am that was a stick car from the factory, then add headers, exhaust and alot of little things I probably have around 3500-3800 bucks in my swap.

The LT1 was a passenger car motor, thus can be swapped into passenger car, but you might want to check with a referee about it.

 

Nope. I just got done putting a Cobra T56 in my car. Trust me, it did not just go in. They are two completely different trans. The tailshaft is different, the input shaft is different, and the gear ratio's are different. The Cobra trans also comes with carbon blocking rings and a steel 3-4 shift fork. The hole mainshaft is also completely different.

 

so i got it im going to attempt the lt1/t56 combo should i look for another doner car that comes with the t56 ///or should i get my friends for 500-1000 (got 2 negotiate) its a 93 z28 camaro with front frame bent but rest of car fine but hes got the automatic also what kind automatic tranny is in a 93 z28 lt1 camaro

 

im going to get the my friends 93 z28 comes with the 4l60 which will go right into my dads dead 88 iroc-z then use the lt1 and find a t-56 will everything from the automatic z28 (wiring harness, and others) fit onto the new t56 when hooked up with the lt1

 

torque converter lock up plug is different, you will need to trim that off the LT1 harness and wire it into your older 4 pin harness. It has been done and there is information out there, but honestly I can't remebmer what website or where I found it, but it's converting 4l60 (not 4l60e) to an older 4 pin car.

You will have to mix the two harnesses together to create a plug and play harness for your car. You will be able to reuse the reverse switch plug by just lengthening it about 6-8 inches, and then you will need to get/wire in a manual transmission vehicle speed sensor and reverse lockout solenoid plugs after getting them from the dealer or carquest (or of equal). The vehicle speed sensor is the same plug as the coolant temp switch, and i can't remember what the other one is identical to, but it's most emissions stuff. You probably will be able to trim down the LT1 harness of unneeded stuff and then be able to find a plug that works.

As far as the computer, you will need to either find a manual transmission computer or have it retuned, of which you will have to do anyways to tune off VATS, and leave emissions on since you are going for california compliant.

 

should i attempt this myself ( i have HAD NO MECHANICAL WORK EXPERIENCE ,, but very willing to learn) how long will this take me and how much are all those going to cost (EXTRA THINGS NOT GOING TO BE INCLUDED IN THIS 93 Z28? LIKE THE SPEED SENSOR AND THE LOCKOUT SELENOID PLUGS)
and how do i MIX the 2 harnesses together u mean the auto wiring harness and the t56 wiring harness? AND HOW DO I TRIM THE WIRING HARNESS? snip and twist wires?

 

You will need to merge your harness and the LT1 engine harness together by splicing wires if you want the plug and play easy-ness in this. From the sounds of how you're speaking, I would highly recommend getting ahold of Pocket on the forums, as he sells exactly this. You can find him doing a search, he's EVERYWHERE, and he will be one to help you from beginning to end on your swap.

As far as the mechanical side of swaping everything out, it's very easy to do, even for a beginner...IF...you have the right tools. You need an engine hoist, a full set of sockets, anywhere from 1/4" drive all the way to 1/2" drive. Screw drivers are a must, and air tools can be a help. Now the start up of these tool costs can be great. If you do not ever plan on doing this again, this may not be a cost you should bear. Getting a plug and play harness will keep this swap under $2000 manual labor (not includings parts cost). If you have a friend with these parts, or plan on possibly doing this in the future, then go ahead and either get the parts or buy your friend a 12 pack. The engine is 2 bolts among disconnecting stupid little things like a/c lines and AIR lines, and transmission is 1 bolt other than bell housing bolts. If you drop the transmission and engine via cross member as one piece, you will save yourself a lot of time.

Go to LS1LT1.com, start searching and you your research. You should have read at least 100-200 threads, or printed out a folder 1.5-2" thick before attempting this, and that you have every base covered with knowledge. Do not fret to breaking things, where there is a will, there is usually a way to fix things. Getting your hands dirty and doing this, will make your life so much easier the next time you need to fix/replace something.

Also, if you'd like piece of mind, replace the knock sensor and oil pressure sending unit. This is only if budget provides room. The knock sensor is a pain to get to off the lift, and the oil pressure unit can be done with a jack under the car, but still isn't fun. The rest of the sensors are up top and easy to change if they need to be changed.

 

i will be having 2 sheds of tools at my house for the next 3 to 4 months i can borrow an engine hoist ....i hope if not there is a military base i can go onto and pay 5.50cents a day to use all tools and mechanic advice and i can leave it at the shop for another 5.50 the next day
and the plug in play will be free cause im mixing the lo3 engine harness and the lt1 engine harness and what will i need to buy off of POCKET?
ALSO how will the plug and play keep this under 2000$ manual labor and by not including parts do you mean no 93 z28 or lt1 and t56 or do you mean lockout selenoid plugs and speed sensor etc.
so in the end i will be expecting to pay 3000$ for all lt1/t56 tranny swap?

 

I paid maybe a hair over $3000 after doing full 3" headers all the way back on exhaust, T56 and LT1 with rebuild costs incoorporated. Keep in mind that I had to nickel and dime parts that I wouldn't have if i had a parts car, but I also made a butt load back on selling the rebuilt auto, harness, computer, manifolds and ypipe all from the '93, and in my $3000 cost found a second '94 motor with the upgraded harness and pcm instead of '93 ecu.

There is nothing wrong with going '93 harness and ECU, but you will need to pay someone under $100...closer towards $50 to burn you a new chip to turn off VATS, and go manual transmission with corrected idles. You will need to purchase the pigtail for the reverse lock out and vss of the T56, but the rest you can pretty much get off the parts car. You will need a custom tranny mount, of which I chose to make my own, Spohn offers one premade, but only issue is going to be ground clearance is only issue I heard. My mount that I made has 0 ground clearance issues. It actually retains the height the original T5 crossmember did. Other than that, you will need a radiator with the provisions for the steam pipe. You can use the one in the car if it somehow wasn't ruined. And you probably can use the fans of the car. For the most part, you probably can get away with using 90% of the engine bay harness of the 93, or at least get the harness parts for the fans and little things that aren't apart of the engine harness.

As far as Pocket goes, you can send him your harnesses, and he will mail back one that you can nearly just plug back into your car and use. This means getting the LO3 harness out of your car, and sending that long with the any and all portions of the 93 harness he feels he needs to put them together for you into one complete harness. The gentlemen from lt1swap.com as you mentioned also does this service, but I do not know anything about him. I'm sure he's a great person, but Pocket is from the site, he supports the site, and even if he's not making money, he will help you put your own harness together. Him and I spent countless hours talking over my harness and it went in and was only missing one ground for the gauges and fuel pump, which was my own mistake for doing it over the course of a week and putting it down in the middle. If you choose to do your own, leave a good 2-3 days to stair at it. Otherwise you'll lose track of your thoughts like I did. But Pocket will just do the service of merging both harnesses together so you don't have to pull your hair out.

As far as my mention of $2000 labor costs, I was saying that I've heard of shops putting engines in cars with all the custom wiring and such for $1500-2500 just for labor, you supply all the parts. Like I said, if you have the means to do it yourself, by all means, learn all the nooks and crannys of your car, and in the future you'll know what you're doing.