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Product Summary

305, 350, Hydraulic Roller Tappet Camshaft Type

    Key Specs

    Camshaft TypeHydraulic Roller Tappet
    RPM Range1500-5500
    Intake Duration (.050" Lift)220
    Exhaust Duration (.050" Lift)224
    Lobe Separation111 °

    Need To Know

    This Product Will Ship Free

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    Return Policy

    COMP Cams 08-413-8 Details

    COMP Cams Xtreme 4X4 X4270HR-11 Camshaft for Small Block Chevrolet Carbureted Engines Originally Equipped with Hydraulic Roller Cams.

    Xtreme 4X4. Good mid-range power, Needs headers, 3.55-4.10 gears, 2000 stall, Noticeable idle. Hydraulic Roller - Xtreme 4X4: Good mid-range power, needs headers, 3.55-4.10 gears, 2000 stall. Noticeable idle.

    • Improved throttle response & increased low & mid-range RPM horsepower for towing & off-road
    • Designed for use with common restrictive factory exhaust systems, including OEM exhaust manifolds

    Application

    1987-98 Chevy 305-350

    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 08-413-8 Specifications

    KEY SPECS
    MFG. Part #08-413-8
    BrandCOMP Cams
    Camshaft TypeHydraulic Roller Tappet
    RPM Range1500-5500
    Intake Duration (.050" Lift)220
    Exhaust Duration (.050" Lift)224
    Lobe Separation111 °
    GENERAL
    Intake Valve Lift w/ Rocker Arm Ratio0.474"
    Exhaust Valve Lift w/ Rocker Arm Ratio0.474"
    Intake Duration270
    Exhaust Duration274
    Sold in QuantityEach
    Grind NumberCS X4 270HR-11
    GTIN Code036584038283
    External Ignition Box RequiredNo
    Valve Springs RequiredYes