Flexplate for 390.

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Feb 27, 2008 | 03:15 PM

TRADITION

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Flexplate for 390.

Anybody know what a flexplate on a 390 goes torqued at
??

Feb 27, 2008 | 04:04 PM

Lance Hogan

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From: Charelston, Illinois

According to Steve Christ , author of How to Rebuild Big Block Ford, states that you should torque the flywheel bolts to 75-85 ft-lbs. (p. 148)

Nov 13, 2020 | 04:03 PM

Thunderkiss1965

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From: Southern California

I always add a couple drops of red locktight. I put it on anything that spins

or would be a real bear to get to to retighten. But that's just me.

Nov 16, 2020 | 05:31 PM

v84960

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From: Montgomery, AL

I agree on the loctite. As for torque specs, on stuff like that with bolts going into iron or steel, I use the German torque spec of gudentite. Not on head bolts or anything like that of course.

Nov 17, 2020 | 09:48 PM

Thunderkiss1965

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From: Southern California

Quote:

Originally Posted by v84960

I agree on the loctite. As for torque specs, on stuff like that with bolts going into iron or steel, I use the German torque spec of gudentite. Not on head bolts or anything like that of course.

Then hit it with the impact a couple times

Nov 23, 2020 | 03:21 PM

baddad457

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From: south louisiana

Never used locktite on flywheel or flexplate bolts and never had one come loose using the stock torque specs
I have used teflon paste on small block flexplate/flywheel bolts to seal the threads (holes go through the flange on roller blocks) Never had them come loose either.