4.6 To 5.4 Swap Flywheel

330McRee

New Member
Jul 13, 2017
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This is my first time posting so forgive me if I don't really do this correctly. I have a 1998 mustang that's been 5.4L 4v v8 swapped with an 8 bolt flywheel and I was wondering what flywheel would bolt up to it? It also has a T45 transmission if that helps.
 
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squeak93

10 Year Member
Jun 2, 2005
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Joplin, Missouri
Any 8 bolt modular motor flywheel will bolt. 96-04 cobras had them stock and iirx 99-00 gt cars did too.

Easy to source from late model or American muscle.
 

RyanBell

Member
Jun 22, 2017
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The only issue you might run into is the difference in clutch diameters. I have a 10 1/2" on my 2v 5.4 but on my 4v 5.4 I went with the 11". just be aware of this when sourcing a new wheel.
 

Porkchop84

Active User
Jan 22, 2018
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Just finished my build.......yes you will need an 11" clutch. Stock gt starter works without issue.
You'll need 4v cobra exhaust manifolds as well.
 

Porkchop84

Active User
Jan 22, 2018
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This is my first time posting so forgive me if I don't really do this correctly. I have a 1998 mustang that's been 5.4L 4v v8 swapped with an 8 bolt flywheel and I was wondering what flywheel would bolt up to it? It also has a T45 transmission if that helps.



2001 Cobra flywheel is what I used.
 

Porkchop84

Active User
Jan 22, 2018
29
8
23
37
This is my first time posting so forgive me if I don't really do this correctly. I have a 1998 mustang that's been 5.4L 4v v8 swapped with an 8 bolt flywheel and I was wondering what flywheel would bolt up to it? It also has a T45 transmission if that helps.



What a you using for an intake?