Motor mount bolts question

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meathead66

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Got the biscuit style Schumacher mounts what size/length bolts would you suggest. All I see on their website is pics but no specs. Bolts are long gone.Motor is 400 stroker 604 HP 510 torque in 69 Dart. Probably grade 8. Thanks
 
Does one side of the mount have a nut welded on? Find out what thread it is and then fine out how long it will need to be by measuring the spread of the mount and make sure there is a little length past the nut (three threads minimum is good)...

I can help you when I come over this week...

We can get some good grade 8 for a good price at Menards....
 
No nut welded on. I'll take a ride over to Menards. Come on over when u in the area. Usually home. Picked motor up yesterday
 
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