400SBC T56 questions
Thread Starter
Supreme Member
iTrader: (5)
Joined: Jan 2001
Posts: 2,025
Likes: 1
From: Evansville,IN,USA
Car: 89' T/A, 00' Firehawk
Engine: 406 Roller
Transmission: TH700R4 w/2800 stall
Axle/Gears: 3.23 Posi
400SBC T56 questions
well, i am finally getting my 400 saturday. and i might have enough money in the near future to do a T56 swap out of a 94-97 f body. right now my car is auto. i have read a few web pages talking about the swap, but i was wondering what all i need and if it was even possible to do without spending over 1500. thanks for any replies. lil jay
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Wide Open Till You See God...Then Brake
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Wide Open Till You See God...Then Brake
Thread Starter
Supreme Member
iTrader: (5)
Joined: Jan 2001
Posts: 2,025
Likes: 1
From: Evansville,IN,USA
Car: 89' T/A, 00' Firehawk
Engine: 406 Roller
Transmission: TH700R4 w/2800 stall
Axle/Gears: 3.23 Posi
also, there's a V6 5 spd firebird in the junkyard, is there any parts that i should get off of it now to make my auto to manual swap easier later on such as pedals, master cylinder? thanks for any help.
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Wide Open Till You See God...Then Brake
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Wide Open Till You See God...Then Brake
the pedals are the only part u can really use from that car, and $1500 isnt too bad of a price range, just depends on if u can find all the stuff u need...
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87 IROC-z 305 TPI 5spd 10-bolt 3.73 posi ,8.8 Accel wires , bosch platinum +4 plugs,MAF sensor screens removed, gutted air box, ram air, K&N air filters,TB coolant bypass ,polyurethane tranny and torque arm mounts, K&N oil filter,Mobil 1 synthetic oil 20w50, futura GLS super sport tires 265/50/15 rear and 235/60/15 front mounted on 86 monte carlo SS rims ,
400 sbc and a 6 spd in the works
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87 IROC-z 305 TPI 5spd 10-bolt 3.73 posi ,8.8 Accel wires , bosch platinum +4 plugs,MAF sensor screens removed, gutted air box, ram air, K&N air filters,TB coolant bypass ,polyurethane tranny and torque arm mounts, K&N oil filter,Mobil 1 synthetic oil 20w50, futura GLS super sport tires 265/50/15 rear and 235/60/15 front mounted on 86 monte carlo SS rims ,
400 sbc and a 6 spd in the works
Thread Starter
Supreme Member
iTrader: (5)
Joined: Jan 2001
Posts: 2,025
Likes: 1
From: Evansville,IN,USA
Car: 89' T/A, 00' Firehawk
Engine: 406 Roller
Transmission: TH700R4 w/2800 stall
Axle/Gears: 3.23 Posi
your telling me no one has done this swap? oh thats not good, i feel a learning experience coming on, lol. i got the 400 tonight, its hanging on the engine stand right now.
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Wide Open Till You See God...Then Brake
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Wide Open Till You See God...Then Brake
I am getting ready to do the swap now. There are a couple of guys local that have done it. I have the complete list of about everything needed. So far I have about $1800 worth of stuff, but a lot of it is new.
Thread Starter
Supreme Member
iTrader: (5)
Joined: Jan 2001
Posts: 2,025
Likes: 1
From: Evansville,IN,USA
Car: 89' T/A, 00' Firehawk
Engine: 406 Roller
Transmission: TH700R4 w/2800 stall
Axle/Gears: 3.23 Posi
jimbuck, could you email a list of everything that i need to do the swap? i would appreciate it. my main questions where what flywheel i needed to use and what starter to use with that LT1 bellhousing. thanks for any help. lil jay
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Wide Open Till You See God...Then Brake
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Wide Open Till You See God...Then Brake
Supreme Member
Joined: Jan 2001
Posts: 1,411
Likes: 3
From: Rock Hill, SC
Car: 1999 Pontiac T/A Firehawk
Engine: ***'s Engine
Transmission: T56
I'm using a ministarter I got from GM, i would think that would work. You'll need a custom flywheel for the two-piece RMS 400 block; i think mcleod or centerforce makes them.
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Supreme Member
Joined: Mar 2001
Posts: 2,047
Likes: 0
From: The State of Hockey
Car: 1987 Trans Am GTA
Engine: Miniram'd 383, 24X LS1 PCM
Transmission: TH700R4, 4200 stall
Axle/Gears: 9", 4.33:1
If you want to include a clutch that is going to last more than a few days behind a stout 400/406, you better plan on spending atleast $1500 for the trans swap......
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1987 GTA L98 MD8
355, TFS Heads, LT4 Hot Cam
My GTA
The Minnesota F-body Club
[This message has been edited by Matt87GTA (edited October 01, 2001).]
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1987 GTA L98 MD8
355, TFS Heads, LT4 Hot Cam
My GTA
The Minnesota F-body Club
[This message has been edited by Matt87GTA (edited October 01, 2001).]
Supreme Member
Joined: Jan 2001
Posts: 1,411
Likes: 3
From: Rock Hill, SC
Car: 1999 Pontiac T/A Firehawk
Engine: ***'s Engine
Transmission: T56
I think mine cost me around $1500, but I don't have a stout 400 in front of it. I used a stock LT4 pressure plate, stock LT1 flywheel, and a McLeod disc of some sort.
Member
Joined: Nov 2006
Posts: 333
Likes: 0
From: northford ct
Car: 1979ta, 1981 formula
Engine: 400 sbc 403 olds
Transmission: th350 th400
Axle/Gears: 308 373
Re: 400SBC T56 questions
i see this is an old post did every thing work well with swap im attempthin one soon a parts list wouold be awsome if you have one i have a 91 t5 camaro
Joined: Nov 2007
Posts: 17
Likes: 0
Transmission: 94 t56
Axle/Gears: 3:42 10 bolt
Re: 400SBC T56 questions
good luck finding the right flywheel other than that the whole swaop is easy hey if you find a 93-97 t56 flywheel that;ll work on a 400 let us know man actually see if the one in summit works cause it is for a 2piece rear main but you have to find what that is balanced right you need either an external balanced flywheel or spend $ at the machine shop to get that thing internally balanced not cheap big headache
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