PRW 32 PQ Series Alloy Steel Mopar Shaft Mount Rocker - Manual (Page 2)

Step 3
Begin assembly by mounting rocker arms, washers, and spacers onto the shaft. Big block rockers are offset,
make sure to place proper rockers on intake and exhaust valves. NOTE: Over the years, various cylinder head
designs by Chrysler/Mopar require “shims” to properly locate the rocker arms on the shaft. Shims from .005”
and larger may be needed. Valve spring shims may be used for this purpose.
Step 4
Install the pushrods. Make sure the pushrod is properly seated in lifter.
Step 5
Loosen pushrod adjusters. Position the rocker assembly onto the head. Tighten down bolts evenly until each is
torqued to 15-17 foot-pounds.
Step 6
Turn all the pushrod adjusters down until the ball end enters the pushrod, if you have cup end adjusters turn
until ball end of push rod enters the adjuster’s cup. Do not tighten beyond this point.
Step 7
Hand turn the crank in the running rotation until the exhaust valve starts to open. Now, set the intake valve by
tightening down the pushrod adjuster until there is no end play in the pushrod. This will bring you to zero lash.
Tighten the adjuster one more full turn then tighten the lock nut.
Step 8
Next, hand turn the crank in the running rotation until the pushrod has reached maximum lift and is between
one half and two thirds of the way down. Then adjust the exhaust valve using the same procedure as described
in step #7 for the intake valve.
Step 9
When using mechanical lifters use the same procedure, but instead of zero lash use the clearance specified by
your cam sheet.
Step 10
Before installing valve covers, check for proper clearance between rockers and valve covers. Then pour engine
oil over rocker arms to insure proper lubrication on initial start up. Finally, replace the valve covers on the
heads.
p:\product\installation guides\new revisions 05-11-10\ms word\prw mopar rockers - stainless steel v1.2.doc
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1722 Illinois Avenue
Perris, California 92571
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www.prw-usa.com