Exterior Components Body Panels and Components

COMP Cams

COMP Cams Rocker Arm GM LS3 1.8 3/8 Ultra

$56.95

SKU: C007 1676-1

In Stock
In Stock
Ships by Sep 22
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The COMP Cams 1676-1 is a set of Ultra Pro Magnum roller rocker arms designed for GM LS3, L99, and L76 rectangle port head LS applications. These stud-mount rockers feature a 1.8:1 ratio and are made from 8650 Chromemoly steel.
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Part #: 1676-1

  • For LS3/L99/L76 - Rectangle Port Head LS Applications
  • Single Stud Mount Rocker - Includes Poly Lock - Requires 3/8" Studs & Guide Plates
  • 1.8:1 Ratio
New LS-Specific Ultra Pro Magnuma 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.

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 LS3 with a 3/8" diameter stud.

This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandCOMP Cams
Part NumberC007 1676-1

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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