Could someone please tell me the size of the buick 350 motor mount bolts and the size of the bolts that go through the mount to the block. I pulled my motor and messed up & missed placed them. Thank you all.
7/16" course thread I think. I just went through this mounting one to a cradle. IIRC I bought fine thread & then has to steal bolts out of a parts car cause they weren't correct.
They are 7/16-14 Grade 8 - length is shown above They have a tapered shoulder near the hex head. Not a straight shoulder. Mount to block bolts are 7-16-14 x 3/4"lg Grade 5
Just happen to have mine sitting right next to me at work. Cleaning them up and reusing the OEM bolts because apparently nobody has the long ones with the tapered shoulder in that length.