Which flywheel
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FTE Chapter Leader
Joined: Sep 2000
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From: Beachville, Ontario
Which flywheel
Which flywheel should I put on my 351W to put in my truck?
I am using an 84 block that came from a Grand Marquis that had an AOD but I have heard that AOD's use a different flywheel than the C6. I have a flywheel from a 75, will it work? 351W's always used the same balance, unlike the 302, right?
1979 F150 Custom: nothing under the hood at all (again)
1987 F150 XLT Lariat: 88 351W EFI
84 351W: soon to have 91 heads, Crane PowerMax cam, double roller timing chain, Edelbrock Performer intake & Holley carb and be put back in 79 F150
86 & 87 Bronco II: next winter's beater
I am using an 84 block that came from a Grand Marquis that had an AOD but I have heard that AOD's use a different flywheel than the C6. I have a flywheel from a 75, will it work? 351W's always used the same balance, unlike the 302, right?
1979 F150 Custom: nothing under the hood at all (again)
1987 F150 XLT Lariat: 88 351W EFI
84 351W: soon to have 91 heads, Crane PowerMax cam, double roller timing chain, Edelbrock Performer intake & Holley carb and be put back in 79 F150
86 & 87 Bronco II: next winter's beater
Thread Starter
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FTE Chapter Leader
Joined: Sep 2000
Posts: 3,862
Likes: 5
From: Beachville, Ontario
Which flywheel
Can anyone help me on this? I'm putting the engine in the truck Monday and I would like to know which flywheel I need to use.
1979 F150 Custom: nothing under the hood at all (again)
1987 F150 XLT Lariat: 88 351W EFI
84 351W: soon to have 91 heads, Crane PowerMax cam, double roller timing chain, Edelbrock Performer intake & Holley carb and be put back in 79 F150
86 & 87 Bronco II: next winter's beater
1979 F150 Custom: nothing under the hood at all (again)
1987 F150 XLT Lariat: 88 351W EFI
84 351W: soon to have 91 heads, Crane PowerMax cam, double roller timing chain, Edelbrock Performer intake & Holley carb and be put back in 79 F150
86 & 87 Bronco II: next winter's beater
Senior User
Joined: Jun 2000
Posts: 458
Likes: 1
Which flywheel
351's all have the same imbalance(28oz).
I THINK the only diff in the flex plates would be # of teeth. I would call your Ford parts guy and ask. FYI the C-4 and AOD flexplates were interchangeable for me.
I THINK the only diff in the flex plates would be # of teeth. I would call your Ford parts guy and ask. FYI the C-4 and AOD flexplates were interchangeable for me.
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FTE Chapter Leader
Joined: Sep 2000
Posts: 3,862
Likes: 5
From: Beachville, Ontario
Which flywheel
Thanks. I don't know if there would be any problems mounting a C6 to an AOD flywheel but I have heard of some major problems mounting an AOD to a C6 flywheel.
1979 F150 Custom: nothing under the hood at all (again)
1987 F150 XLT Lariat: 88 351W EFI
84 351W: soon to have 91 heads, Crane PowerMax cam, double roller timing chain, Edelbrock Performer intake & Holley carb and be put back in 79 F150
86 & 87 Bronco II: next winter's beater
1979 F150 Custom: nothing under the hood at all (again)
1987 F150 XLT Lariat: 88 351W EFI
84 351W: soon to have 91 heads, Crane PowerMax cam, double roller timing chain, Edelbrock Performer intake & Holley carb and be put back in 79 F150
86 & 87 Bronco II: next winter's beater
New User
Joined: Jan 2001
Posts: 24
Likes: 0
Which flywheel
[QUOTE]Thanks. I don't know if there would be any problems mounting a C6 to an AOD flywheel but I have heard of some major problems mounting an AOD to a C6 flywheel.
I agree that all the 351's have the same flexplate specs.
I just rescently put an AOD 164 tooth 28oz flexplate on my 1971 351c with a C-6 and have no problems. Here's a little more info though....
69-80 (C-6) 302,351c,351w-164 tooth ring gear 11-7/16 (28 oz)
82-95 AOD 302 with 164 tooth ring gear 11.4 b.c. (50 oz)
You should have no problems, stay away from the 50oz weights, stick to the 28oz weights.
Custom 1980 F100 351c 2v Shortbed
I agree that all the 351's have the same flexplate specs.
I just rescently put an AOD 164 tooth 28oz flexplate on my 1971 351c with a C-6 and have no problems. Here's a little more info though....
69-80 (C-6) 302,351c,351w-164 tooth ring gear 11-7/16 (28 oz)
82-95 AOD 302 with 164 tooth ring gear 11.4 b.c. (50 oz)
You should have no problems, stay away from the 50oz weights, stick to the 28oz weights.
Custom 1980 F100 351c 2v Shortbed
Senior User
Joined: May 2001
Posts: 475
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From: Southern IL
Which flywheel
Don't use the C-6 flywheel on the AOD or you will run into problems like i did. You will have to get a 351 AOD flywheel.
'90 F-150 Custom 4x2 351 AOD
'93 Mustang 5.0 HO AOD
'78 F-250 Ranger Supercab 4x2 460 C-6
'90 F-150 Custom 4x2 351 AOD
'93 Mustang 5.0 HO AOD
'78 F-250 Ranger Supercab 4x2 460 C-6
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