302 crankshaft

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Apr 16, 2010 | 03:25 PM

#1

cookieman69

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Joined: Nov 2007

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302 crankshaft

I am building a 302 out of 1978 ford f100 and I would like to use crank out of 1986 5.0 roller motor the only difference I can see is 5.0 has 1 piece seal and 78 has a 2 piece seal there is a small lip on the 78 crank were the seal rides that the 5.0 dosen't have should this be a problem I haven't purchased 2 piece seal yet to see what it looks like Thanks Mike

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Old

Apr 16, 2010 | 06:04 PM

#2

Conanski

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Joined: Jun 2006

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From: Ottawa, Ontario

Use the 1-piece seal if at all possible. Crank balance is different too.. 28oz on the '78 and 50oz on the '85, which means you can't use whatever flywheel/flexplate you have now.

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Tags

100, 1978, 302, balance, crank, crankshaft, difference, ford, pc, piece, problums, seal, shaft

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