Description

Ultra Pro Magnum Rocker Arm Set w/ 1.52 Ratio for Chevrolet SBC w/ 3/8" Stud ULTRA Pro Magnumââ??¢ Roller Rocker Arms. The Ultra Pro Magnumââ??¢ Roller Rocker Arms not only live up to the lofty standards of the original Pro Magnumââ??¢ Rockers but they also take Stud mount Rocker performance stability and value to a whole new level. The modern arched web-like design delivers increased strength and rigidity while still reducing the moment of inertia and optimizing the dynamic balance. Applications: Chevrolet Small Block 265-400 c.i.d. V8 3/8" Studs / 1.52:1 Ratio.&#x0D <ul>&#x0D <li>Investment cast 8650 chromemoly body and arched weblike design deliver increased strength and rigidity while reducing M.O.I.</li>&#x0D <li>Unique black oxide exterior finish helps prevent corrosion thus increasing durability</li>&#x0D <li>Increased retainer and valve spring clearances allow use of large diameter springs retainers and +.050" locks with o clearance or fitment issues</li>&#x0D <li>Feature Oversized trunnions precision-sorted needle bearings and hardened Roller tips</li>&#x0D <li>withstand valve spring pressures up to 850 lbs.</li>&#x0D <li>Also Available in A Rocker/Pushrod Kit</li> &#x0D </ul>

• Specifications

  • Engine Family: Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)
  • Maximum Valve Spring Open Pressure: 850
  • Rocker Arm Material: 8650 Chromemoly Steel
  • Rocker Arm Ratio: 1.52
  • Rocker Arm Series: Ultra Pro Magnum
  • Rocker Stud Diameter: 3/8 Inch