PRW 02-03 PRW GM LS Series Stud Mount Roller Rocker Arms - Manual (Page 2)

Step 6: Hand turn crankshaft in the running rotation until the exhaust pushrods begin to move upwards. This will
bring the lifter to base circle and allow the intake valve for that cylinder to be adjusted.
Step 7: For Intake Valves: Hydraulic Lifter Cams: Tighten the adjusting nut by hand until all slack between the
rocker and pushrod is gone. Do this by turning the pushrod with your fingers as you tighten the polylock. Continue
this until you feel a slight resistance in the spin of the pushrod. This process puts you at zero lash. At this point turn
the polylock another ½ turn. Once adjusted hold the hex nut of the polylock and tighten the setscrew.
For Solid Lifter Cams: Consult your cam spec sheet for proper lash specifications. With the proper feeler gauge
between the roller tip and valve, tighten the polylock until you feel a slight drag on the feeler gauge.
Step 8: Exhaust Valves: Hand turn the crankshaft until the intake pushrod has reached maximum lift and is
between one half and two thirds of the way back down. The lifter is now at base circle enabling you to properly
adjust the exhaust valve for that cylinder. Repeat step 7 for the remaining exhaust valves. When this is completed
all the valves should be at proper pre - load position.
Step 9: Before installing the valve covers for the final time, check for proper clearance between rockers and valve
covers. Then, pour a pint of engine oil over the rocker arms to insure proper lubrication. Finally, replace the valve
covers on the heads.
Limited Warranty
Performance Quotient and PRW Industries, Inc. (“PRW”) warrants that all of its products are free from defects in
material and workmanship, and against excessive wear for a period of (1) one year from the date of purchase. This
limited warranty shall cover the original purchaser.
PRW’s obligation under this warranty is limited to the repair or replacement of its product. To make a warranty
claim, the part must be returned within (1) one year of purchase to the address listed below, freight prepaid. Items
covered under warranty will be returned to you freight collect.
It is the responsibility of the installer to ensure that all of the components are correct before installation. PRW
assumes no liability for any errors relative to tolerances, component selection, or installation.
There is absolutely no warranty on the following:
i. Any parts used in racing applications, or;
ii. any product that was physically altered, improperly installed or maintained, or;
iii. any product used in improper applications, abused, or not used in conjunction with the proper parts.
There are no implied warranties of merchantability or fitness for a particular purpose and no warranties which extend beyond the description
of the face hereof.
PRW will not be responsible for incidental and consequential damages, property damage or personal injury damages to the extent permitted by
law. Where required by law, implied warranties or merchantability and fitness are limited for a term of one year from date of original purchase.
This warranty may give you specific legal rights. You may have other legal rights, which vary from state to state.
PRW Industries, Inc.
1722 Illinois Avenue
Perris, CA 92571
Tele: (951) 436-7900
Tech: (888) 377-9779
www.PRW-USA.com