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Old 06-13-2000, 02:01 PM   #1
germany67
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Join Date: Jun 2000
Location: Corpus Christi, Texas
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Post Damper and Flex Plate Problems

I am trying to replace my worn 289 with a late model crate engine from SVO. The engine I am wanting to use is a long block 302 with GT-40P heads. This engine comes with 50oz. damper with a four bolt pattern instead of the 28.2oz. with a three bolt pattern like on my '67 289. Has anybody encountered this problem? Also, I would like to know what flex plate I can use (I am running a C-4 trans).
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Old 06-16-2000, 10:28 PM   #2
mustangII460
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Heres the beef.

The late model 5.0 I believe 1980 and up uses as you know a 50 oz flex and 4 bolt damper.

You wouldnt want to use the old 3 bolt damper anyway because its for the lighter 28.2 oz plate. Also the timing marks are different too. Leave on the 289.

Solution: You will want to use a 50oz flex plate. If the one supplied does'nt fit in the bell housing, you will need a smaller plate. The one thats on your C-4 will most likley be the one you use. (The plate must match the trans). But make sure you balance it to 50oz. Ford made a 157 tooth & 164 plate later is the AOD plate. And use a late model 4 bolt damper designed for the 50 oz plate. Confused yet?

WARNING using the wrong balance will shake your teeth out.

If all else fails,,,,,GOT HAMMER?

Good Luck, Hope this helps

[This message has been edited by mustangII460 (edited 06-17-2000).]
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