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Comp Cams - Shaft Rockers
Pro Magnum Rocker Arms

Lifetime Guarantee
Pro Magnum Rocker Arms™ are so strong that we guarantee the rocker bodies for life against breakage.

Rebuildable! Unlike aluminum rockers, this heavy-duty rocker can be rebuilt. We will disassemble and inspect it, then replace the roller tip, axle, trunion and bearings to make your rockers like new.
  Pro Magnum Roller Rockers
Ideally suited for serious street, bracket racing, super classes, and circle track racing. You won't find a better roller rocker for the price.

Unsurpassed Strength!
To ensure maximum durability under high-rpm operating conditions, Pro Magnum™ Roller Rockers are built entirely from 8650 chromemoly steel, a material three times as strong as the aluminum used in many competing rockers. Pro Magnums are so tough, in fact, that we offer an industry-leading lifetime warranty on the rocker bodies themselves. And because Pro Magnums are fully rebuildable, you may never have to buy another set of rockers again.

Less Weight Where It Counts!
Our engineers used advanced computer technology (including Finite Element Analysis) to refine the Pro Magnum™ Rocker. We added strength where it was needed and reduced mass in low stress areas. The result: Pro Magnum Rocker Arms™ have less weight (5%) at the valve than most aluminum rockers. This means more rpm and valve train stability.

Superior Design Equals Better Performance!
The unique design of the Pro Magnum™ Rocker enables us to use a larger trunion with more needle bearings. This spreads the load more evenly and the rocker will last longer. Other features include an integral pushrod seat that ensures accuracy and saves weight, and a unique rocker design also provides plenty of clearance for most high performance valve springs.
Part # Description Rocker
Ratio Price/
1607-8 Chevy V8 265-400
Twisted wedge head, intake valve
3/8" 1.52 $181.72 order here
1632-16 (B) Ford V8 289-302-351W 7/16" 1.6 $348.93 order here
A. Will not replace late model pedestal rockers, see page 277 for stud conversions
B. Must use screw-in studs and guide plates
C. Will not replace late model rail rocker
D. Requires a ball/ball pushrod
E. Replacement components only, must be used with kit #16765-KIT & #13703-KIT, see page 171 for more information
F. Designed for stock and aftermarket heads without guide plates or that originally used pedestal-mount rockers
*50-State legal for 1993 and older GM vehicles equipped with 200 c.i.d. (4.2L) to 454 c.i.d. (7.4L) gasoline engines. C.A.R.B. E.O. #D-279-4

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