billybob270

Has anyone used a T56 from a LT1 engine on a LS1/LS2 engine? I am sure it can be done, but does anyone know what all would be involved?....parts, clutch, T/O bearing, etc.? Thank you.

brandotron

iTrader: (1)

Bell housing, for one.

NemeSS

iTrader: (127)

along with about a 500-1000$ overhaul/conversion

MonteHawk

iTrader: (12)

Basically everything after the front faceplate where the slave cylinder mounts to back is the same. The input shaft is a different length as well. You can convert it to LS spec if you have a front faceplate and unput shaft. You will need to use LS flywheel, pressure plate, disc, and hydraulics all inside an LS bellhousing.

I had Johnathon at Tick convert one I have. Great job. I only did this because I had a built LT T56 that I wasn't using and needed the LS version for my Z28.

iansane

I did this for my swap. I had an LT1style t56 behind my original 305 and with a new front plate, some new shims, input shaft, bellhousing, TO bearing/slave cylinder, LS7 clutch/fly and new bolts. Fairly simple swap, took me an afternoon to do.

Although I ended up paying through the f'ing nose for the parts, I bought from D&D for the bell, plate and input shaft and stuff that I could've gotten new from the dealer for the same or just a bit more. Oh well.

the_merv

iTrader: (88)

It's easier to use the LS stuff..see if you can get it built and converter like mentioned.

Shawn MacAnanny

iTrader: (12)

What i am currectly researching, and i think is possible, it to use an Lt1 T56 behind the 99-2000 truck 6.0Ls because their cranks were .400" longer which is the offset that LT1 and SBC stuff is in relation to LS1 stuff.

the_merv

iTrader: (88)

You can also use the LT1 T56 setup with the Crank Spacer on a LS Engine aswell.

Shawn MacAnanny

iTrader: (12)

Has anyone actually done it? If its that simple then why to people always mention swapping out bellhousings and input shafts if all they need is a crank spacer?

76LQ9TA

iTrader: (1)

I think the 93 t-56 trans were also a lower torque rating than the later years.

cntrmnt02ss

iTrader: (2)

i just did this 2 weeks ago, i put the t56 from my 95 formula, into my bro's 98 z28 its not that bad, if you can do a clutch you can do this, you need the ls1 bell housing, mid plate, input shaft, clutch and slave. when we pulled the blown ls1 t56 i left the clutch and bell housing attached to the engine, then we swapped mid plates and input shafts, then threw it all back together like normal. all sensors and mounts were the same. drove it on a 500 mile road trip the next day with no problems and about 1000 since then.

pillagenburn

iTrader: (2)

I was also thinking about this.... let us know what you find!

Shawn MacAnanny

iTrader: (12)

The 93 transmission also had a different gear ratio. I have one in my 94 with 3.73s its like having 4.10s. 93s have a 2.97 first instead of 2.66, a .66 6th instead of .50 or something close to that.

Its going to be a litlte while longer until i select a trans for my 6.0L going the Datsun now since my Duramax's transfercase pump decided to rub through the side of its casing. about $1500 for a new one.

billybob270

Thank you guys for all the info. Also has anyone tried to use say the LT1 pressure plate or other combination to keep from changing the input shaft? For that matter any combination (clutch, pressure plate, T/O bearing) to keep from converting the LT1 trans (bellhousing, plate, shaft, etc.) to the LS1 engine?....anyone know of a covertion kit by any of the aftermarket guys???

Thank you again for all the input.

Kory 88Iroc Lt1

iTrader: (7)

subscribing.
I want to know this as well.
Kory

Shawn MacAnanny

iTrader: (12)

What i was thinking, and planning is trying to use an LS1 flywheel, LS1 pressure plate and LT1 clutch disk. I have no idea if it will work though.

cntrmnt02ss

iTrader: (2)

it is crazy easy, seriously... once you have the trans on the floor or a bench you have access to the 10 or so bolts that hold the midplate to the rest of the transmission. remove those, the midplate comes off and the input shaft literally falls into your hands... on the lt1 t56 the midplate has provisions for the clutch fork, the ls1 t56 it has provisions for the slave cylinder. i cant stress enough how easy it is, no special tools or knowledge required, like i said before if you can do a clutch you can do this conversion.

cntrmnt02ss

iTrader: (2)

also i wouldnt recommend mixing clutch components because lt and ls setups are very different. the lt's clutch fork pulls on the pressure plate, while the ls's slave cylinder pushes on the pressure plate for disengagement.

pillagenburn

iTrader: (2)

where do you get a LS1 input shaft, plate and bellhousing to where it doesnt cost you an arm and a leg? though i doubt all that can be had for less than $250

52 Rat

iTrader: (4)

I purchased a bellhousing from Quicktime that will allow me to my LT1 T56 to my LQ4 engine. I will need to use the LT1 clutch and pressure plate and a LS flywheel. I'm not sure if the LT1 pressure plate will bolt up to the LS flywheel. I will let you know how this works out.