TUCK1975

iTrader: (1)

ok im going 406 to a t5 and was wondering if its possible and if they make a flywheel i can use to do this

Pillsbry10

iTrader: (1)

the 406 will destroy the t-5 more than likely

TUCK1975

iTrader: (1)

yeah probably but for right now it what i got when i get the money or find a good deal ill go t56 but for right now t5 it is if i can use it

Pillsbry10

iTrader: (1)

if you want to drive your car like a grandma then put the t-5 in...much more of a lead foot then betty white and it will die

Jim85IROC

iTrader: (2)

If the 406 has stock heads, the t5 will be fine.
I'm not aware of a 153 tooth externally balanced flywheel, but if you can't find one, any place that balances rotating assemblies should be able to balance a stock t5 flywheel to work with the 400.

vetteoz

iTrader: (13)

He will have to get a 153 tooth flywheel from a early 2 pce RMS engine as the one pce RMS flywheel off his '92 won't bolt to the early style 400 crank

Jim85IROC

iTrader: (2)

Right. I probably should have mentioned that!

TUCK1975

iTrader: (1)

it wont have the stock heads its going to have aluminum heads cant remember the specs on the heads the only thing i know i have to do it swap out the dome pistons for flat tops

1gary

X2

five7kid

iTrader: (14)

Come on, guys, he knows he can't abuse it. He just wants to be able to drive it until he can replace the T5 with something stouter.

The answer isn't that hard to find:

http://www.summitracing.com/search/D...l/?Ns=Rank|Asc

watajob

iTrader: (29)

$350? Ouch!

TUCK1975

iTrader: (1)

I don't suppose its the same one that works with a t56?

sofakingdom

iTrader: (1)

No, of course not; the T-56 requires a different flywheel no matter what engine it is.

All you have to do is get a 83-85 V8 F-body flywheel, take it to your local balance shop, and have it "unbalanced" to the stock 400 spec. Should take around 12 - 15 half-inch dills about a half-inch dep, around the edge toward one side. Piece o cake. A stock one will work fine, or a good quality replacement. You will find that there are 2 choices: the one for the base-model low-perf LG4 at about 22 lbs, and the one for the L69 at about 16 lbs. I'd suggest the lighter one.

That's how I ran my 400 for many years. And I might add, about 3 times as many T-5s as years.

Johnny Blaze

iTrader: (15)

I did not know a T-56 has a special flywheel. Whats the difference bewteen it and others?

travis401

iTrader: (1)

https://www.thirdgen.org/forums/engi...wheel-pre.html

another option for a fly wheel...

travis401

iTrader: (1)

me either i thought any 153 tooth flywheel would work, just had to get one for either 1 or 2 peice rear main, and internal or external balance.

Johnny Blaze

iTrader: (15)

I have never heard a T-56 using a different flywheel, I would love to hear what is different.

Like travis said, those are the only differences I know of.

travis401

iTrader: (1)

i guess since the t56 is a pull style clutch it might need a specific flywheel for that....thats about the only thing i can think that would be different.

lolvtec

i had a 406 in a 79 camaro with a t5 and it lasted one run so i went turbo 350 it was fun till you romp on it

1gary

Five7kid-I want you to know I respect the heck about your opinions.But I disagree with you on this one.Close friend with yrs as a operator of a trans shop has a 55 gallon drum full of T5 parts from normal driving failures.

TUCK1975

iTrader: (1)

ok how bout this might be a dumb question but will the t56 flywheel work with a t5 the only reason im asking is i know they are around $500 and right now i cant afford a t56 and that flywheel im pretty sure i know the answer but thought i would ask anyway

sofakingdom

iTrader: (1)

No the T-56 and T-5 flywheels are not interchangeable, at least not the 93-97 LT1 (pull type) ones. The LS1 one potentially can be but there are other issues with that combo.

They're just NOT. They are DIFFERENT. No point in asking that over and over, no matter how bad you want somebody to type what you want to hear, the RIGHT answer will remain the same.

If they would interchange, there wouldn't even BE such a thing as a "conversion" flywheel made, because nobody would need it. Eh?

Johnny Blaze

iTrader: (15)

Are we talking crank bolt pattern/ flange or clutch/ trans engagement side?
I realize the ls1 flywheel will not bolt to a gen 1 sbc, but a t-56 trans( with proper bellhousing) would mate to the gen 1 block and flywheel.

Are you saying this is not correct? There is a t-56 specific flywheel for gen 1 sbc?
I'm looking at jegs now, not seeing a conversion flywheel.

1gary

Hummm-Maybe the best answer would be for you to convert to some sort of automatic until you have the funds for a T56 or just save up you money until you do have the money for a T56.You do know that there are still tons of 400's out there.............

Johnny Blaze

iTrader: (15)

Found a RAM billet flywheel, 2555, early sbc to 93-97 T56 int. Bal. 153T 18lbs.

Well, learned somthing. Seems like that doesn't get mentioned slot in swap talk. RAM is the only one listing one too.

TUCK1975

iTrader: (1)

I do have a rebuilt 700r4 and a 350 don't know what shape the 350 is in just have to figure what kind of stall to use thanks to everyone for the input

travis401

iTrader: (1)

thats the one i bought, but im using the adapter plate to bolt the t56 to the t5 bell, and use the t5 hydrualics. the adapter plate requires the ls1 input shaft and extended pilot bushing though.

1gary

That isn't what I meant using a automatic.Do it cheaply as you can to use it as a stepping stone to what you want.So for a stall if your cam doesn't require it,don't.

beachrodder

I have a 1987 Trans Am with a T5, will a 400 Chevy with it's stock 400 flywheel work with my T5 clutch assembly and starter?

Johnny Blaze

iTrader: (15)

Did GM ever puyt a manual behind a 400 sbc? Not to my knowledge.

Beachrodder do you have a flywheel or a flexplate?

If its a flywheel what did it come out of and how many teeth does it have?

beachrodder

Thankyou for the reply Johnny Blaze.

This is a fresh short block engine build a friend of mine has, who is a local highly respected performance engine builder. It is a 408 that I am thinking of buying. It is a stock flywheel for a Chevy 400 so I believe it would be a 168 tooth flywheel.

In 1972 with engine code CTB they had 400s with a manual transmission in the Chevy Caprice according to this chart : http://www.nastyz28.com/gm-chevy-cod...s-suffix-3.php

I am just not sure if my 1987 clutch and starter would work with it.

Edit: > I just looked at a picture that I have of the engine and it looks like it is a staggered style starter not the inline starter.

I am still wondering about the clutch/pressure plate assembly fitting the flywheel and fitting up to the T5 and its hydraulic throw out bearing setup.


John

Johnny Blaze

iTrader: (15)

Pretty sure a 168 tooth flywheel will not it in a t-5 belhousing

RamIt

Personally I would prefer the 153 tooth flywheel and clutch to act as the weakest link with a t5.
You can use the larger flywheel but you will need to change the bell housing to a Lakewood 15020. The stock bell cant fit the larger 168 tooth flywheel.

http://www.summitracing.com/parts/la...t/model/camaro

Piston454

i built a 406 sbc for my camaro with a t5 world class trany i found a 153 tooth flywheel that was internally but bought a ballencing plate that bolts on right behind the crank to make it external. worked great. havent broken my trany yet pushing 400+ hp with 11.5 compression and 6 inch rods.