Owner's manual

PRW Industries, Inc.
1722 Illinois Avenue
Perris, California 92571
Tele: [phone]
Tech: [phone]
PRW Billet Steel Main Girdle Installation Instructions
Parts List
Item
Quantity
Main girdle
1 each
Studs
10 each
Nuts
10 each
Washers
10 each
High Strength Threadlocker, Red
2ml bullet
Installation
Step 1
Remove all factory main bolts. Do not remove the main caps.
Step 2
Clean and chase all of the threads in the main bolt holes. This will help provide accurate torque readings.
Step 3
Coat the bottom threads with Loctite (or similar thread locker) and hand-tighten into the block. Use oil or
moly lube to coat the upper threads of the studs and torque to OEM specifications.
Step 4
Install the main girdle onto the main caps. Be sure to have 0.020” minimum clearance between the girdle
cross bar and the center of the main caps. Add washers if needed.
Step 5
Hand-tighten the nuts.
Step 6
Hand-turn the crankshaft and check for both crank counterweight and rod clearance. If there are clearance
issues, you will have to modify the girdle. Mark the spot or spots on the girdle where the crank or rods are
hitting.
Step 7
Install the oil pump by hand-tightening it into place. If there are clearance issues with the pump and/or the
girdle, mark the girdle where the clearance issue occurs.
Step 8
Remove oil pump and girdle if modifications need to be made. Mill the girdle where contact occurred.
Step 9
Reinstall the girdle and oil pump, recheck the clearances.
Step 10
Once you have the clearances, you can torque the girdle and oil pump into place. Torque to factory specs.