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Joined: Mar 2010
Posts: 1,374
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Joined: Mar 2010
Posts: 1,374 |
Had clutch and flywheel lined up but that fell threw. Wondering what size the stock flywheel takes. Thx joe
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Joined: Jan 2010
Posts: 215
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Joined: Jan 2010
Posts: 215 |
Joe,
Stock 400s and "smaller" got the 10.4" (10 1/2) disc. 428s and 455s got the 11". I don't believe there were any 1st gen 'birds with the 11".
Jim
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Joined: Dec 2005
Posts: 5,108
Power Member
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Power Member
Joined: Dec 2005
Posts: 5,108 |
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Joined: Mar 2010
Posts: 1,374
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Joined: Mar 2010
Posts: 1,374 |
thx guys, I am getting my parts together to install my 428. I want a 11" clutch. I was going to a swap meet this weekend. Thinking of getting a used flywheel and having it turned. What is the best way to tell the difference on a 10.4 and 11" flywheel? Joe
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Joined: Jan 2010
Posts: 215
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Joined: Jan 2010
Posts: 215 |
I just measured a flywheel with the "imprint" of an 11" disc on it. The bolt circle is 12.5" (diameter). I also measured one with the 10.4" disc. Same. 12.5". I THOUGHT they were different, but apparently not.
I would recomend a Hayes or McCleod SFI-approved flywheel. About $325. Good steel and not at least 35 years old.
I "like" Ram clutches for a streeter. The McCleod "adjustable" pressure plate is awesome in a "drag" car.
FWIW
Jim
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Joined: Dec 2005
Posts: 5,108
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Power Member
Joined: Dec 2005
Posts: 5,108 |
Ok, now gon'a have to measure mine next time i'm home.
By eye, the 12 has more surface area.
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Joined: Jan 2008
Posts: 150
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Joined: Jan 2008
Posts: 150 |
You can fit an 11" disk under a 10.4 pressure plate. The 11" pressure plate causes A LOT of interference with the bellhousing and floor pan getting it on. Been there, done that. Had to grind the inside of the bellhousing and a little off the top ears to clear the floor pan. Even lifted the front of engine to gain some clearance.
HTH
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Joined: Jan 2010
Posts: 2,405 Likes: 1
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Joined: Jan 2010
Posts: 2,405 Likes: 1 |
I tried to put an 11 inch on my 10.4 flywheel and it would not fit. The bolt circle for the 10.4 was smaller than the 11. Some flywheels have both patterns drilled and tapped into them.
Al.
Al
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