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302 reverse rotation main seals

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Exskier View Drop Down
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    Posted: January-11-2022 at 11:53am
Need some direction for procuring a set of main seals for a mid 60's reverse rotation 302 .
Thanks ahead of time .
Jody
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Post Options Post Options   Thanks (0) Thanks(0)   Quote KENO Quote  Post ReplyReply Direct Link To This Post Posted: January-11-2022 at 6:08pm
Assuming that you're using the original reverse rotation crankshaft with the wick/helix/oil control lines at the rear main seal area of the crank, the rear main seal from an automotive application will work. 

It's a 2 piece smooth seal that doesn't care which way the crank rotates.

Felpro BS30136 will work or there are plenty of cross references to other brands.

If you're using a different crankshaft from a normal rotation engine, you'll have a whole different set of issues to deal with as far as seals go..

For the front seal on a reverse rotation small block Ford, Felpro 17795 is a good number. The wick lines are in the seal itself.  There may not be any cross references to other brands for this one.

By the way, you mention a mid 60's 302, but the 302 didn't go into production till 1968 and most likely never showed up in a boat application till 1969, so you either have a later than mid 60's engine or a smaller 260 or 289 Ford from the mid 60's.

The numbers above will work for a reverse rotation 260, 289 or 302 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Exskier Quote  Post ReplyReply Direct Link To This Post Posted: January-12-2022 at 10:31am
Thanks for the information.
Jody
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