Product Summary

Full Roller Rocker Arm Style, 1.7:1 Rocker Arm Ratio

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    Key Specs

    MFG. Part #1620-8
    Rocker Arm StyleFull Roller
    Rocker Arm Ratio1.7:1
    Stud Size.437"
    Material TypeChromoly
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    Need To Know

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    COMP Cams 1620-8 Details

    COMP Cams Ultra Pro Magnum Roller Rocker Arms, 1.7 Ratio, 7/16" Stud Diameter for Big Block Chevrolet, Set of 8.

    The Ultra Pro Magnum Roller Rocker Arms for Big Block Chevy 396-454 applications take stud mount rocker performance, stability and value to a whole new level. These rocker arms feature a 7/16" stud diameter and 1.7 ratio. The 8650 chromemoly material and arched, web-like design deliver increased strength and rigidity while still reducing the moment of inertia and optimizing the dynamic balance. A unique black oxide exterior finish helps prevent corrosion and increases durability. Featuring oversized trunions, precision-sorted needle bearings and hardened roller tips for the ultimate in performance and dependability. Optimized retainer and valve spring clearances allow for use of most diameter springs, retainers and +.050" locks without clearance or fitment issues.

    • 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

    Application

    1965-2000 Chevy 396-454

    Guides & Documents

    CARB Warning

    For race/ off road use only

    Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

    COMP Cams 1620-8 Specifications

    KEY SPECS
    MFG. Part #1620-8
    BrandCOMP Cams
    Rocker Arm StyleFull Roller
    Rocker Arm Ratio1.7:1
    Stud Size.437"
    Material TypeChromoly
    GENERAL
    Stud Diameter0.4375"
    Rocker Arm Nut StylePolylock
    FinishBlack Oxide
    Sold in QuantitySet
    Rocker Arm Body StyleStandard
    Rocker Arm Mounting StyleStud
    Self-AligningNo
    Shims IncludedNo
    GTIN Code036584196037
    ColorBlack

    Questions & Answers

    Fitment

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