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Unread 01-07-2010, 07:35 PM   #1
computertech
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Flywheel swapping

I have found a running AMC 360 in my area for $350. It currently has an automatic behind it. Will the flywheel from my 258 bolt on to the 360 to replace the flexplate? Am I getting screwed on this deal or is this a good price? I'm a Chevy guy, so I don't know much about AMC parts pricing.

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1974 Jeep CJ5- 258 I6, 3.73 gears, Dana 20 T-case
1967 Chevrolet Fleetside LWB- 250 I6, 3-on-the-tree, 3.08 gears, A/C
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Unread 01-07-2010, 08:18 PM   #2
motiv8ya
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You'll need a flywheel from a 360, the AMC Motors are externally balanced and require a Flywheel or Flexplate for the specific engine. A 304 won't work for a 360, 360 won't work for a 401 etc....
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Unread 01-07-2010, 08:22 PM   #3
computertech
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Oh, I see... What a bummer. Maybe I can find an inexpensive one somewhere.
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1967 Chevrolet Fleetside LWB- 250 I6, 3-on-the-tree, 3.08 gears, A/C
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Unread 01-08-2010, 10:15 AM   #4
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Quote:
Originally Posted by computertech View Post
Oh, I see... What a bummer. Maybe I can find an inexpensive one somewhere.
Whatever you do, don't buy the cheap one from AutoZone. They list the same part number for both the 304 and 360 for one particular cheap brand they carry.

Don't throw away the 360 flexplate. List it in Classifieds.

Place a Wanted thread for the 360 flywheel you need. Otherwise, look on places like RockAuto, etc for a flywheel from an application like the newest J-series truck listed with a 360/manual (1985?).
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Unread 01-08-2010, 11:24 AM   #5
computertech
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I found a complete 304 for $200 that someone else is selling. If it was mated to a manual tranny, I'd rather buy that one. Less work for me. It's just a ragged out Jeep that I bought for $50. It currently has a 258 with a crack down the entire side of the block, so that's why I'm looking to replace it. Besides, there's no replacement for displacement. Or, I could always buy an adapter and a 454 that a buddy of mine has in his barn...
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1974 Jeep CJ5- 258 I6, 3.73 gears, Dana 20 T-case
1967 Chevrolet Fleetside LWB- 250 I6, 3-on-the-tree, 3.08 gears, A/C
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Unread 01-08-2010, 01:14 PM   #6
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If you're just looking for a cheap fix, the simplest solution will be to buy another 258.
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Unread 01-08-2010, 03:49 PM   #7
oteps
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I used an autozone flywheel from a 72 jeep truck with 360, i think it was around $100. I havent had a problem yet.
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