Bolt size (thread , pitch)

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Mar 28, 2009 | 07:04 PM

bishop0179

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Bolt size (thread , pitch)

I just picked up a 390 pulled from a 73 f250 for a builder. Got home and noticed that I forgot to grab the bolts to mount it up to my engine stand!

Anyone know the size and thread pitch of the bell housing bolts? My google fu is failing me tonight!

Thanks as always!

Mar 28, 2009 | 08:54 PM

daddy172005

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From: Greenwood, SC

Not familiar with a 390 but i used spare head bolts to put a 302 on the stand. Not sure if it will work for you but its a suggestion.

Mar 28, 2009 | 09:02 PM

427 fordman

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From: Plankinton, SD

7/16 coarse thread

Mar 28, 2009 | 09:45 PM

bmuhlbach

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From: hinckley ohio

7/16-course is right i think there 7/16-14 is the size you need all the older fords are this size.

Mar 28, 2009 | 11:33 PM

bishop0179

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thanks !

7/16 SAE course thread (14) did the trick. Thanks everyone!

Anyone know where to find the block casting number ? Right front side of block has 30 DIF ( molding number and Dearborn Iron Foundry ) . It has the 352 cast in the front, but I cant seem to locate the actual block cast.

The plate on the valve cover has C9AE , but that cant be right, thats a 427 CJ!

Thanks again!