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Old 01-30-2011, 10:42 AM
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Chevy Engine cradle to motor-mount, bolt size question

Have a V8 converted Mazda (old school SBC) using standard GM motor mounts. I obviously didn't sufficiently torque the bolts (one on each side) that fasten the mounts to the cradle, and I lost the bolts. Mounts are just resting on the cradle. Can anyone tell me the most likly bolt size/thread pitch for the missing bolts? Thank you!
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Old 01-30-2011, 10:50 AM
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7/16" bolts just a stander pitch thread. Isn't it just a nut and bolt or are your mounts threaded?
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Old 01-30-2011, 11:03 AM
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Having to use a mirror, and things are a bit out of alignment, but I'm sure I see threads. I don't see how I would have clearance to "back up" a fastner in any case.
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Old 01-30-2011, 11:23 AM
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Found the answer on Granny's Speed Shop on-line instruction set for Mazda RX-7 V8 conversion. 7/16" x 1". Thanks
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Old 01-20-2012, 10:44 AM
JERRY 47 FORD COUPE
 
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Quote:
Originally Posted by Zeeb
Have a V8 converted Mazda (old school SBC) using standard GM motor mounts. I obviously didn't sufficiently torque the bolts (one on each side) that fasten the mounts to the cradle, and I lost the bolts. Mounts are just resting on the cradle. Can anyone tell me the most likly bolt size/thread pitch for the missing bolts? Thank you!
your bolts 3/8 sae 1 inch 9/16 socket size you need 6. 47 ford
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Old 01-20-2012, 10:47 AM
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The threads on the block are 3/8-16
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Old 01-20-2012, 01:04 PM
JERRY 47 FORD COUPE
 
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47 Ford

Ok Good News
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