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#1
03-10-2022, 08:56 PM
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Engine mounts to block bolt size and thread pitch.
Hello I have a question about Engine mount bolts. I am purchasing an engine. I also have purchased a Motofeet engine stand which mounts to the block using two of the five holes in the block to attach. I need to bring bolts that are about one inch longer than the origin mounting bolts when I pick up the motor. Can someone please tell me the size, thread pitch and length of the original factory bolts. Thanks. [ ATTACH]585868[/ATTACH]
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#2
03-10-2022, 09:08 PM
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7/16 shank, X14 thread pitch. I believe the OEM bolts are 3/4 inch long.
The length is from memory, as I don't have any OEM bolts handy.
__________________
Brad Yost 1973 T/A (SOLD) 2005 GTO 1984 Grand Prix 100% Pontiacs in my driveway!!! What's in your driveway? If you don't take some of the RACETRACK home with you, Ya got cheated    
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#3
03-10-2022, 09:18 PM
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Quote:
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#4
03-11-2022, 08:01 AM
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Figure on the bolt holes in the block being 1/2” deep, then you need to add to that the thickness of that engine stand the bolts will pass thru.
Once you have that number I would add 1/4” of length to the bolts you buy and then also buy a fist full of 7/16” washers in case you need them, especially if you can only get bolts that are overly long for what you think you need!
__________________
I do stuff for reasons. |
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#5
03-11-2022, 03:13 PM
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Original sizes for bolt and washer is:
Bolt Insulator to Cyl. Block 7/16"-14 x 1" Washer Insulator to Cyl. Block 7/16" I.D. x 13/16 O.D. x 1/8" |
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#6
03-11-2022, 06:12 PM
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Thanks for your reply
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#7
03-11-2022, 06:13 PM
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Thank you for the information
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