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COMP Cams 1677-8 Ultra Pro Magnum Rocker Arms, Set
COMP Cams 1677-8 Ultra Pro Magnum Rocker Arms, Set

COMP Cams 1677-8 Ultra Pro Magnum Rocker Arms, Set

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COMP Cams 1677-8 Ultra Pro Magnum Rocker Arms, Set
COMP Cams 1677-8 Ultra Pro Magnum Rocker Arms, Set
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We estimate this item will ship on or before November 20th.
Part # 28216778
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Important Messages:

  • This item ships directly from the manufacturer. It may take an additional 3 business days for COMP Cams to ship this item.
  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.


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COMP Cams Ultra Pro Magnum Roller Rocker Arms, 1.8 Ratio, 3/8" Pedestal Mount, LS1/LS6, Set of 8.

Utilizing years of Valvetrain design experience, the latest FEA stress analysis technology, and an exhaustive testing regiment (Dyno and Spintron), the COMP Cams engineering team left no detail to chance. Everything from casting techniques to valve spring clearance was scrutinized to ensure that the new Ultra Pro Magnum rocker arms not only lived up to the lofty standards of their predecessor, but also took stud mount rocker performance, stability, and value to a whole new level.

  • Investment cast 8650 chromemoly body and arched, weblike design deliver increased strength and rigidity while reducing moment of inertia
  • Withstand valve spring pressures up to 850 lbs.
  • Unique black oxide exterior finish helps prevent corrosion, thus increasing durability
  • Increased retainer and valve spring clearances allow use of large diameter springs, retainers and +.050" locks without clearance or fitment issues
  • Feature oversized trunnions, precision-sorted needle bearings and hardened roller tips
Some parts are not legal for use in California or other states with similar laws/regulations

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