Comp Cams 1431-16 Magnum roller tip rocker arms.
Fits 1978 and newer Ford 289 302 351W engines.
Stock 1.6 ratio.
3/8 rocker studs.
Not for use with guide plates.
Comp Cams Magnum roller tip rockers are made from 8620 chromemoly steel.
This makes them stronger than die-cast aluminum or stamped steel rockers.
This superior material, along with the Mangum's super stiff design, assures maximum lift because this rocker arm will not flex.
You can't get maximum horsepower from your engine if your rocker ratio is off.
Comp Cams checked other brands of rockers and found rockers that were as much as .040" short on lift.
The Magnum rockers are super accurate.
They check dead on every time.
The Magnum roller tip rockers can make between 15 and 30 horsepower over other rockers!
The secret is that not only does the roller tip reduce friction, the Magnum rocker's incredibly stiff design and super accurate ratios yield more effective valve lfit.
The roller tip design reduces friction by not scrubbing the valve end or pushing the valve stem hard against the valve guide.
This in conjuction with the super strong design of the rocker makes for a simple, bulletproof, and cost effective combination.
Magnum roller tip rockers can be used with any hydraulic or solid cam where open spring pressures do not exceed 350 lbs.
Long slots are cut for high lift cams.
Sold as a set of 16 rocker arms, grooved balls and attaching nuts.
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