are u using the stock 400 flywheel? what starter?

thanks

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Rick
90 Camaro RS 305 TBI
400 small block, Hooker 1 3/4 LTs, Random Tech Cat, Hooker aero chamber cat back on the way!!
TH700-R4 with Trans-Go shift kit (corvette servo here...but not installed yet)
MacEwen Motorsports White Gauge Overlays
14" K&N X-Stream Open Element
GTS Headlight and Taillight covers
5% Limo Tint all around
Classic White Chevy Bowtie sticker on rear window
http://www.geocities.com/esvalenz

Man if my camaro were a rice-rocket all those mods would give me what...easily 50-60 hp!!!

"Just because I've done it, doesn't mean I knew what I was doing!" - Me

 

No way could you use the 400 flywheel. Matter of fact, I'm not sure there ever WAS a 400 flywheel, I thought all 400 SBC's came with automatics behind them.

Anyway, even if there was a 400 flywheel, the LT1 push style clutch won't mate to anything except a flywheel for an LT1. And an LT1 flywheel will not bolt up to the 400's 2 piece RMS crank.

All is not lost however, a few companies (including I think, Mcleod and Centerforce) make a T56 flywheel that fits a 2 piece RMS crank. They're pricey, but the only way I know of to make a 400/T56 combo work.

You can still use the stock LT1 pressure plate and clutch disc, or aftermarket.

 

hey hawk the 400 was not a SBC it was a pontiac motor

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1987 Trans AM GTA
305 5SPD
Hypertech airfoil
gutted maf
kn filter
High Flow Cat,
3"Walker pipe
Dynomax Super turbo Muffler
Custom Air Intake.

"Like a wounded duck i will continue to hobble alone"

 

chevy made a 400 small block too thats where the 3.75 inch crank came from to make the chevy 383.

 

I have a T-56 bolted to my 400. I changed the clutch set up to a Bob wier hydrolic throw out bearing and bellhousing.that aloud me too use any clutch set up I wanted and get rid of that slopy clutch that came with the t-56.I am pushing 500 HP and no clutch chatter and no slipping. The only problem that I ran into is that if you go with the 153 tooth you would have too drill and tap a hole for the starter.I don't know but I don't think you can put a 168 tooth flywheel with the stock t-56 bellhousing.Check with someone els on that.Check out my web site below.

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www.geocities.com/camaro1j/myz28.html


406
accel supper ram
6000 rpm Hyd roller cam
afr heads
spohn torque arm and crossmember
t-56 trans, [wier racing bellhousing and hydrolic throwout bearing]
9" ME rearend 3.91 Gears

 

That's partially true and partially not. There was a 400 pontiac motor, true. There was ALSO a 400 small block (please don't try telling me they don't exist, I have two in my garage that are torn apart and I have measured the 4.125" bore). Matter of fact there was even a 400 BBC (well, technically it was a 402, but GM badged them as 400s).

 

That is correct. 168 tooth flywheel will not fit.

 

if the 168 tooth flywheel doesn't fit, then what is the biggest clutch that can be run with a t-56?