400 SB/T-56 combo

[Bad94]

Does anyone have a chevy 400 SB and T-56 combo? I need to know a few things.


Thanks

[Mkelcy]

Originally Posted by Bad94

Does anyone have a chevy 400 SB and T-56 combo? I need to know a few things.

Perhaps if you indicated what you needed to know even folks who don't have a T56 behind a 400 SBC could help.

[novanutcase]

MKelcy.....LOL.....C'mon take it easy on the guy!


Bad94 - Ya gotta admit that was kind of a dumb post! State your business and let's get the build going on!

[Bad94]

I need to know what bellhousing, flywheel, clutch, and if you have the block changed from 2 piece to 1 piece rear main


Cause i dont think that you can run a 400 with a T-56 unless u get the flywheel that is like $400, and im not game for that.


I was thinking of running a McLeod bellhousing old school flywheel and LS1 clutch set up and LS1 T-56, would work on a 400.

[Mkelcy]

Originally Posted by Bad94

I need to know what bellhousing, flywheel, clutch, and if you have the block changed from 2 piece to 1 piece rear main

Cause i dont think that you can run a 400 with a T-56 unless u get the flywheel that is like $400, and im not game for that.

I was thinking of running a McLeod bellhousing old school flywheel and LS1 clutch set up and LS1 T-56, would work on a 400.

There's no magic to the 400 SBC, other than the possibility of it being externally balanced, and there's no reason (or way?) to use a 1 piece rear main seal crank in an OEM 400 SBC block. You haven't told us what car all this is going into, so we're still flying a bit blind.

IMHO, the easiest and cleanest way to swap a T56 behind a traditional BBC/SBC, is to use an LS1 T56 and the McLeod adapter kit (1/2” thick adapter plate that goes between the transmission and the bellhousing, extended pilot bushing, and “collar” on which the throwout bearing rides - http://store.summitracing.com/partde...5&autoview=sku). You will likely also need a transmission cross member, a shortened driveshaft, which you can have made up locally, and an electronic speedometer or an electronic to mechanical converter (pricey!).

Using these parts you can use any standard Chevy bellhousing (or a scattershield), the standard Chevy flywheel of your choice and the standard Chevy "push" style clutch setup of your choice. If your car came equiped from the factory with a mechanical clutch linkage, you can likely use that as well. If the factory didn't make a mechanical clutch linkage, or if you don't like mechanical linkages, you can use an hydraulic TO bearing.

The "pull" style clutch, which requires the expensive flywheel and clutch you're writing about is only needed with the LT1 T56.

If space in the tranmision tunnel is REALLY tight, you could go with the McLeod Modular bellhousing, which moves the transmission closer to the engine (by 0.5") and tapers down in size that much faster.

If you tell us what car it's going into, we might be able to help more.

[Bad94]

Mkelcy thanks for that info, very helpful


Im looking to put a 400 and T-56 in my 94 S-10.

The truck has a 4.3L with 5 speed right now.


I was told that the T-56 is hard to put behind a 400 cause of the flywheel problem.


My bro has a 91 S-10 4.3L with a Lt1 T-56 and we did a 01 S-10 with a 4.3L that we did a LS1 T-56


Im just tryied of this V6 crap

[Mkelcy]

Originally Posted by Bad94

Mkelcy thanks for that info, very helpful.

No problem. If you have any additional questions, please ask. We're always happy to help.