Product Summary

Hydraulic Roller Tappet Camshaft Type

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    Key Specs

    Camshaft TypeHydraulic Roller Tappet
    RPM Range2400-7200
    Intake Duration (.050" Lift)239
    Exhaust Duration (.050" Lift)255
    Lobe Separation114 °
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    Need To Know

    Quick and Easy Returns

    Return Policy

    COMP Cams 54-471-11 Details

    COMP Cams LSR Rectangular Port 289LRRHR-14 Camshaft for LS Gen III/IV, Three-Bolt.

    LSR Rectangular Port (All Out Power For 5.7L-6.2L). Hydraulic Roller-Broad top end power range for high rpm, race only LS engines with aftermarket rectangular port cylinder heads & higher compression. All COMP Cams Camshafts are manufactured to the strictest tolerances. Rigorously tested and checked for quality.

    • Take advantage of today’s newer & better flowing aftermarket cylinder heads
    • Feature higher exhaust duration & overall lift to provide broadest powerband and most top-end power of any COMP Cams LS Camshaft
    • Unique grinds for both cathedral & rectangle port heads
    • Require 26926-16 high-load valve springs

    Application

    1997-15 Chevy 294-427

    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 54-471-11 Specifications

    KEY SPECS
    MFG. Part #54-471-11
    BrandCOMP Cams
    Camshaft TypeHydraulic Roller Tappet
    RPM Range2400-7200
    Intake Duration (.050" Lift)239
    Exhaust Duration (.050" Lift)255
    Lobe Separation114 °
    GENERAL
    Intake Valve Lift w/ Rocker Arm Ratio0.624"
    Exhaust Valve Lift w/ Rocker Arm Ratio0.624"
    Intake Duration289
    Exhaust Duration305
    Sold in QuantityEach
    Grind Number289LRR HR14
    GTIN Code036584195337
    External Ignition Box RequiredYes
    Valve Springs RequiredYes

    Questions & Answers

    Fitment

    • GM LM4

    • GM LS6

    • GM LSA

    • GM LM7

    • GM LQ9

    • 6.2 Chevy LS V8

    • GM LM7

    • GM LQ9

    • 6.2 Chevy LS V8

    • GM LM7

    • GM LQ9

    • 6.2 Chevy LS V8

    • GM LM7

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LQ4

    • GM LS6

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ9

    • GM LQ4

    • GM LM7

    • GM LQ4

    • GM LQ9

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LM4

    • GM LM7

    • GM L59

    • GM LM7

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM L59

    • GM LM7

    • 4.8 Chevy LS V8

    • 6.2 Chevy LS V8

    • GM LM4

    • GM LM4

    • GM LM4

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM L33

    • GM LM7

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM L33

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM L33

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM L33

    • GM LQ4

    • GM L33

    • GM L59

    • GM LM7

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LM7

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LM7

    • GM L59

    • GM LM7

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • 6.2 Chevy LS V8

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