T56 swap??
Thread Starter
Intermediate
Joined: Nov 2012
Posts: 39
Likes: 0
From: Bay Shore NY
T56 swap??
Hello I was wondering what would I need to do to get an lt1 t56 into my c4. It's an 84 (auto) I know I have to get the master cylinder, clutch, flywheel, bellhousing, new starter, modify the c beam, new pedal and change the brake pedal. Am I missing anything?? So here's my questions will a brake pedal assembly work for the clutch pedal or do I have to get a special clutch pedal assembly?? How or were should I get the modified c beam part ?? And anything else I need to do.
(Just making sure what I have to do to get this tranny in there before I start getting the parts)
Thanks for your time
Regards D
(Just making sure what I have to do to get this tranny in there before I start getting the parts)
Thanks for your time
Regards D
Safety Car
Joined: Jan 2004
Posts: 3,556
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http://forums.corvetteforum.com/1551084186-post1.html
http://forums.corvetteforum.com/1550783015-post66.html
prostreetcustoms used to make a C4 T56 adapter.
How good are you with a welder? Plenty have made their own
http://forums.corvetteforum.com/1550783015-post66.html
prostreetcustoms used to make a C4 T56 adapter.
How good are you with a welder? Plenty have made their own
Instructor
Joined: Jan 2013
Posts: 191
Likes: 11
From: Suffolk VA
Did the bolt patterns change from the L98 SBC's to the LT1s? Or anything else that might not be applicable for doing this to the L98?
I have a 4L60E and have been contemplating this vs doing the ZF swap.
T56s happen to be in much greater supply than the ZF's.
I have a 4L60E and have been contemplating this vs doing the ZF swap.
T56s happen to be in much greater supply than the ZF's.
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Thread Starter
Intermediate
Joined: Nov 2012
Posts: 39
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From: Bay Shore NY
Burning Brakes
Joined: Jun 2005
Posts: 1,191
Likes: 15
From: Wallingford Vermont
You'll need to do some homework.
The T56 bellhousing will bolt up but the flywheel will not ('86 and up one piece rear main seal crank shaft flange). So that leaves either the aftermarket (expensive) flywheel or adapting the T56 to the common style bellhousing (which means you'll want a LS longer input shaft T56).
Study up.
The T56 bellhousing will bolt up but the flywheel will not ('86 and up one piece rear main seal crank shaft flange). So that leaves either the aftermarket (expensive) flywheel or adapting the T56 to the common style bellhousing (which means you'll want a LS longer input shaft T56).
Study up.
Team Owner
Joined: Aug 2004
Posts: 21,543
Likes: 3,216
From: Park City Utah
You'll need to do some homework.
The T56 bellhousing will bolt up but the flywheel will not ('86 and up one piece rear main seal crank shaft flange). So that leaves either the aftermarket (expensive) flywheel or adapting the T56 to the common style bellhousing (which means you'll want a LS longer input shaft T56).
Study up.
The T56 bellhousing will bolt up but the flywheel will not ('86 and up one piece rear main seal crank shaft flange). So that leaves either the aftermarket (expensive) flywheel or adapting the T56 to the common style bellhousing (which means you'll want a LS longer input shaft T56).
Study up.
I did this and the machine work was ~$80 Flywheel was ~$15 at a salvage yard. After that, parts/maintenance is easy. F-body clutch, PP, TOB, etc.
Instructor
Joined: Jan 2013
Posts: 191
Likes: 11
From: Suffolk VA
Thread Starter
Intermediate
Joined: Nov 2012
Posts: 39
Likes: 0
From: Bay Shore NY
You'll need to do some homework.
The T56 bellhousing will bolt up but the flywheel will not ('86 and up one piece rear main seal crank shaft flange). So that leaves either the aftermarket (expensive) flywheel or adapting the T56 to the common style bellhousing (which means you'll want a LS longer input shaft T56).
Study up.
The T56 bellhousing will bolt up but the flywheel will not ('86 and up one piece rear main seal crank shaft flange). So that leaves either the aftermarket (expensive) flywheel or adapting the T56 to the common style bellhousing (which means you'll want a LS longer input shaft T56).
Study up.
And I'm trying to do my homework before I go and start buying thing
So I'll probably get the after market flywheel.
Do I still need the longer input shaft??
And I'm guessing but I'd be able to run the lt1 pressure plate and clutch correct ??
Thanks for your time
Regards D
Last edited by DDeRiso; Apr 10, 2013 at 07:37 PM.
Team Owner
Joined: Aug 2004
Posts: 21,543
Likes: 3,216
From: Park City Utah
He can get a later flywheel that works (like an F-bod LT1 flywheel) and have a machine shop modify the flange on the flywheel for the older 2 pc RMS. Also chop the counter weight at the same time.
I did this and the machine work was ~$80 Flywheel was ~$15 at a salvage yard. After that, parts/maintenance is easy. F-body clutch, PP, TOB, etc.
I did this and the machine work was ~$80 Flywheel was ~$15 at a salvage yard. After that, parts/maintenance is easy. F-body clutch, PP, TOB, etc.
Team Owner
Joined: Oct 2004
Posts: 81,241
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From: altered state
St. Jude Donor '05
Do I still need the longer input shaft??
Centerforce 700107 i believe is the pn for the flywheel.
DF kit...real happy with it.
well over 550chp holds just fine feels like a stock pedal no chatter issues
FW that adapts early crank to LTx style clutch
Do NOT use pressure plate regular bolts you want the McCleod ones Summit sells them.
Think its PN 1502 double check
Last time I looked ARP lists a PN for the LT1 but they are LSx bolts will not work
Last edited by cv67; Apr 10, 2013 at 08:59 PM.