INSTALLATION METHOD FOR MAIN STUDS

  1. To ensure proper thread engagement and accurate torque readings, clean and re-tap ALL threads in block.  Re-tap only if necessary.
  2. Clean and inspect all hardware prior to installation.  Look for obvious defects of shipping damages, plus proper fit, length, and dimensions.
  3. Scew the studs into the block "HAND TIGHT ONLY"
  4. Install main caps and check for binding or misalignment. Lubricate the threads of the studs, nuts, and washers with Moly assembly lubricate or 30wt motor oil.  Moly lube is preferred due to higher friction on studs as well as inconsistencies in the clamping force of fasteners when using motor oil.

NOTE: LOCTITE MAY BE USED IF A PERMANENT MOUNTING OF THE STUDS IS PREFERRED.  THE FASTENERS, HOWEVER, MUST BE TORQUED PRIOR TO THE LOCTITE SETTING UP.


PRE-LOAD (TORQUE) RECOMMENDATIONS
When changing from factory fasteners to high strength fasteners, clamping force and tolerances will change.  The main bore should be align honed using the same fastneers which will be installed, at the recommended preload.

NOTE: Do not use any other lubricants or main cap walk can result

 

Stud Size Moly Lube 30wt Motor Oil
3/8 40 ft/lbs 45 ft/lbs
7/16 60 ft/lbs 70 ft/lbs
1/2 100 ft/lbs 110 ft/lbs
9/16 130 ft/lbs 140 ft/lbs