SBC Oil Pump Bolt Torque

BillK · 03-16-2016, 10:46 PM

Dave,
Probably too late now but the factory spec is 65 lb ft. The bolt is almost identical to a short head bolt so it makes sense that the torque would be close.

Bolt charts are ok for "generic" fasteners but most engine fasteners are designed for a specific use and the factory torque specs should be used if available.

I have probably done a hundred of them and never have had the issue you mentioned with the bolt crushing the pump. I really think it would be a good idea to get your torque wrench checked or at least compare it to another one. If it is one of the Snap On wrenches with the little knob on the side I have had two of them start sticking and not releasing properly. One was a 3/8 and the other a 1/2" drive. I have replace both of them with "traditional" Snap On wrenches, I just could not trust them

Just my opinon,

03-16-2016, 10:46 PM	#9
BillK Member Join Date: Nov 2005 Location: Waldorf Md Posts: 230 Likes: 12 Liked 30 Times in 17 Posts	Re: SBC Oil Pump Bolt Torque Dave, Probably too late now but the factory spec is 65 lb ft. The bolt is almost identical to a short head bolt so it makes sense that the torque would be close. Bolt charts are ok for "generic" fasteners but most engine fasteners are designed for a specific use and the factory torque specs should be used if available. I have probably done a hundred of them and never have had the issue you mentioned with the bolt crushing the pump. I really think it would be a good idea to get your torque wrench checked or at least compare it to another one. If it is one of the Snap On wrenches with the little knob on the side I have had two of them start sticking and not releasing properly. One was a 3/8 and the other a 1/2" drive. I have replace both of them with "traditional" Snap On wrenches, I just could not trust them Just my opinon, __________________ Bill Koustenis