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).

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 http://www.mustangworks.com/interact...oard/smile.gif

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