COMP Cams · New
COMP Cams Rocker Arm GM LS1LS2LS6 1.8
MPN 1677-1 · Store SKU cca1677-1
Supplier stock checked 11/7/2026, 1:59:46 PM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
New LS-Specific Ultra Pro Magnumâ„¢ Rocker Arms From COMP Cams Increase Ratio And Stiffness Over Stock Rockers, While Also Increasing Lift without The Need To Swap Cams. As LS engines continue to grow in popularity, COMP Cams has expanded its line of Rocker arms to build components specific to LS Applications. For LS1/LS2/LS6/4.8L, 5.3L, and Pre '07 6.0L Truck Engines - Cathedral Port Head LS Applications Single Bolt Down Rocker - Includes Bolt 1.8:1 Ratio This Ultra Pro Magnum rocker is made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. Featuring a 1.8 ratio, this rocker fits non-adjustable pedestal mount LS1/2/6. Ultra Pro Magnum 1.8 Ratio Rocker Arm for Pedestal Mount GM LS1/LS2/LS6
Manufacturer fitment & guides
Check 1677-1 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y
