BlackTopKing

iTrader: (1)

I tried searching and found a few things, but want to clarify.
I am entertaining the option on picking up an 85 TA to swap motors with. I have an 87 TA (both 350, although dont know if that matters).

question is, any reason i couldnt just both the T56 as it is currently to the 85 block. Might seem dumb....but perhaps someone could tell me the block fitment cut off?

i understand that the 70's blocks wont directly fit with out flywheel and all...

so if it fits 87....it'll fit (earliest year) to (latest year).

thanks

sofakingdom

iTrader: (1)

Won't fit 60° 6-cyl, for sure.

V8 blocks are all the same.

Well,,, .... ,, ...... not all... only 55 - 2000, as far as SBC. And 5whatever to 6whatever "W" motors; 65 - ???? (probably present) BBC; can't begin to guess how far back, up through whenever they quit making em L6, and so forth. Not to mention the various 4-cyl motors all the way from early 60s Chevy II up through whenever. (4-cyl motors aren't something I really do much research on) And mustn't forget the 90° 6-cyl like 4.3L.

Other than those few rare compatible scenarios mentioned above, fitment might be a problem.

BlackTopKing

iTrader: (1)

Well honestly not concerned with 4 cylinders or v6's.

This is specifically 350sbc and although they are all the same with in reason... They are not.

Everything I've found and read has stated that 70's model sbc have kits to retro fit the T56 (mine is 2002), for example flywheels (800$) so... Instead of spending money to make trany fit a 70's model block. Rather use the cash into a sbc that bolt up as is.

Considering it's already set up on the 87 motor.

The question is... What kind of window do I have ? 82-93 motors?!
I don't know.... And really haven't found anything or anyone with a definitive answer.

Mr.ChevyStroker

The t56 will bolt up to 1 and 2 piece main seals. You need the lt1 style bell housing. If you are a 2 piece main seal you'll need the center force flywheel, I don't remember the part #, but its about 400 bucks. With the 1 pc main seals you'd use all the lt1 style stuff, flywheel, clutch. I know the lt1 style t56 had a removable bell housing, but I don't think the ls1 style brbell housing is removable to my knowledge? With the lt1 bell housing and such (lets say you bought a whole t56 swap) and you had a manual, itd bolt up the engine just like the t5. Then of the course the hydraulics and such replace em.

sofakingdom

iTrader: (1)

You're not listening.

You asked about BLOCKS.

A GM T-56 bolts to ALL Chevy small blocks (and big blocks and 90° V6 and...).

But of course other mfrs bought it from Tremec same as GM did, so one out of a Viper or a Frod or a Hupmobile or whatever, who knows. I gave you the benefit of the doubt and, even though you didn't say what yours came out of, I "assumed" it was GM and answered the question you asked accordingly.

The flywheel is a different matter; not all FLYWHEELS bolt to all CRANKSHAFTS.

The stock LT1 T-56 flywheel will only fit 86-up crankshafts.

Since you have now revealed the additional piece of information you DIDN'T in your original post, that your T-56 stuff is the LS1 version, it's not quite as direct of a fit; the clutch gear is a different length, and I'm not sure about whether its flywheel will bolt to either style of the older SBC crankshaft at all. I'd be about 99.9999% certain the flywheel WON'T bolt up to the 2-pc rear main seal motors from before 86, but the 86-up, I'll let someone else fill that detail in.

The TRANSMISSION will however bolt right directly up to the BLOCK, as you asked about.

Bear in mind that if you have a 85 TA with a 350 in it, the odds of it being a 85 350 are VERY slim, since the 350 wasn't available in these cars in 85. It's a swap-in, and could be from ANY year. 350 production was started in 69 and continued to 2000.

Next time you are interested in purchasing a part and aren't sure about compatibility, ask BEFORE buying it, not AFTER. Kinda late for that now... your money is gone, and either it fits or it doesn't, in which case either you are either golden or you are screwed.

Meanwhile, if as you NOW say

you have nothing to worry about.

BlackTopKing

iTrader: (1)

Think you took my reply little personal.

Perhaps it wasn't clear on my end but I felt as it was.

Yes I have a t56 installed on an 87 TA with a 350. I didn't do it, bought it that way. Which I love and is SO worth every penny...
But that's why the question. I am keeping trans, screw the motor, my concern on weither or not I could just interchange sbc motors in a donor car. Which is why I am asking before buying...

Good point about the 350 in 85, actually a really good point.

I get the 1pc verse 2pc seal...
And based off your information.

86+ cars would be the setups I should be looking at. Anything pre 85, are not direct... Or possibly not direct.

Thanks for the information though, definitely helps...

Any idea how new of a block...93 sbc ? Perhaps.

Mr.ChevyStroker

Its bolt in on a 85 block, it just requires a different flywheel. A 93 is a 1 piece main seal so itl bolt up.

BlackTopKing

iTrader: (1)

Got it!!!
so to keep as is, i need a 1 pc RMS and those are 87+ blocks.

Hunt is on.

Thanks