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Product Summary

Solid Roller Tappet Camshaft Type, 3400-7600 RPM Range

    Key Specs

    Camshaft TypeSolid Roller Tappet
    RPM Range3400-7600
    Intake Duration (.050" Lift)259
    Exhaust Duration (.050" Lift)268
    Lobe Separation107 °

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    COMP Cams 12-861-9 Details

    COMP Cams Xtreme TK Small Base Circle 287TKNR-7 Solid Roller Camshaft for Small Block Chevy.

    Chevrolet 262-400 c.i. 8 cyl. 1955-1998. Mechanical Roller-(.900 BC) 383-415 IMCA, Late Model, Modifieds. Great Torque. Oval Track .900" Base Circle Xtreme TK Rollers - New TK roller profiles give more area under the curve and shorter seat timing than any other series. Great for Hi-Torque or restricted applications. All COMP Cams Camshafts are manufactured to the strictest tolerances. Rigorously tested and checked for quality.

    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 12-861-9 Specifications

    KEY SPECS
    MFG. Part #12-861-9
    BrandCOMP Cams
    Camshaft TypeSolid Roller Tappet
    RPM Range3400-7600
    Intake Duration (.050" Lift)259
    Exhaust Duration (.050" Lift)268
    Lobe Separation107 °
    GENERAL
    Intake Valve Lift w/ Rocker Arm Ratio0.648"
    Exhaust Valve Lift w/ Rocker Arm Ratio0.645"
    Intake Duration287
    Exhaust Duration300
    Sold in QuantityEach
    Grind Number287TKNR-7
    Intake Valve Lash0.016
    Exhaust Valve Lash0.02
    GTIN Code036584015451
    External Ignition Box RequiredNo
    Valve Springs RequiredYes