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Old 09-19-2017, 05:08 PM   #1
Old_iron
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Join Date: May 2016
Location: Idaho
Posts: 87
SM465 bolts for pressure plate, flywheel, bellhousing (may apply to other trans)

I am posting this to confirm what I've found in my research and also so that there is a reference thread with all this info in one place for future readers.

**Please help me fill in the missing info and I'll update this post.**


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67-72 Sm465 to SBC

Flywheel-to-crank bolts
(6x ) 7/16-20 x .687 Special Bolts, available from local shops and Rock Auto
Torque: 65-70 ft lbs

Pressure Plate-to-flywheel bolts
(6x ) 3/8-16 x ??? Special Grade 8 Deep Shoulder
Torque: 45 ft lbs

Bellhousing-to-engine
(6x) 3/8-16 x 1-1/4 Grade 8 Bolts
Torque: 35-40 ft lbs

Bellhousing-to-transmission
(4x) 1/2-13 x 1.25
Torque: ??? ft lbs
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1968 GMC 3/4 Ton 4x4 K20 / 2500
1971 Chevrolet Chevelle Malibu

Last edited by Old_iron; 09-20-2017 at 11:34 AM.
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Old 09-19-2017, 10:43 PM   #2
kwmech
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Join Date: Mar 2003
Location: Colfax-California
Posts: 8,628
Re: SM465 bolts for pressure plate, flywheel, bellhousing (may apply to other trans)

Flywheel to crank 65-70 lbs
Pressure Plate bolts 3/8-16 kind of a special gr8 deep shoulder-- torque 45
Bell housing to block 35-40 lbs
Trans to Bell 1/2-13 x 1.25 or (1.5) pull down hard with a 3/4'' wrench


these are off the top of my head.
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Old 09-20-2017, 11:35 AM   #3
Old_iron
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Join Date: May 2016
Location: Idaho
Posts: 87
Re: SM465 bolts for pressure plate, flywheel, bellhousing (may apply to other trans)

Thanks for the info. Does anyone have a link to the correct kind of bolt for the pressure plate to flywheel?
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1968 GMC 3/4 Ton 4x4 K20 / 2500
1971 Chevrolet Chevelle Malibu
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Old 09-20-2017, 02:31 PM   #4
kwmech
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Join Date: Mar 2003
Location: Colfax-California
Posts: 8,628
Re: SM465 bolts for pressure plate, flywheel, bellhousing (may apply to other trans)

Quote:
Originally Posted by Old_iron View Post
Thanks for the info. Does anyone have a link to the correct kind of bolt for the pressure plate to flywheel?
Every auto parts store I go into has a pack of 6 ready to go.
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