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COMP Cams Xtreme Marine XM308HR Retro-Fit Hydraulic Roller Camshaft Only Lift .575"/.575" Duration 308°/314° RPM Range 3500-6500

COMP Cams 11-461-8

249-11-461-8

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COMP Cams Xtreme Marine XM308HR Retro-Fit Hydraulic Roller Camshaft Only Lift .575"/.575" Duration 308°/314° RPM Range 3500-6500 $280.99
Xtreme Marine XM308HR Retro-Fit Hydraulic Roller Camshaft Only
Lift .575"/.575"
Duration 308°/314°
RPM Range 3500-6500

COMP Cams 11-461-8 Details

Chevrolet 396-454 c.i. 8 CYL. 1965-1996

  • Retro-Fit

    Hydraulic Roller-Good in jet boat with B impeller with 10:1 compression running river drags or Bracket Racing.

  • Specifications:

    Exhaust Valve Lift (in.)
    0.575
    Intake Valve Lift (in.)
    0.575
    Int. Duration @ .050 in. (Deg)
    254
    Exh. Duration @ .050 in. (Deg)
    260
    Int. Duration Advertised (Deg)
    308
    Exh. Duration Advertised (Deg)
    314
    RPM Range
    3500-6500
    Engine Make/Size
    Chevy Big Block (396-454)
    Lifter Type
    Hydraulic Roller
    Usage
    Marine
    Lobe Separation (Deg)
    112
    Advertised Duration
    308 int./314 exh.
    Advertised Exhaust Duration
    314
    Advertised Intake Duration
    308
    Basic Operating RPM Range
    3,500-6,500
    Cam Style
    Hydraulic roller tappet
    Computer-Controlled Compatible
    No
    Duration at 050 inch Lift
    254 int./260 exh.
    Exhaust Duration at 050 inch Lift
    260
    Exhaust Valve Lift with Factory Rocker Arm Ratio (
    0.575
    Grind Number
    CB XM 308HR-12
    Intake Duration at 050 inch Lift
    254
    Intake Valve Lift with Factory Rocker Arm Ratio (i
    0.575
    Quantity
    Sold individually
    Valve Lift with Factory Rocker Arm Ratio
    0.575 int./0.575 exh.
    Valve Springs Required
    Yes
    Manufacturer's Part Number:
    11-461-8

    If you're heading to the great outdoors, Comp Cams offers camshafts designed specifically for marine applications where low idle speeds are necessary and where restrictive exhausts require special cams that work well against wet exhaust system back pressure. These unique camshafts generate an extremely wide powerband, offering the low-end torque needed to jerk skiers up quickly and the high-end power needed for maximum performance. Also, Comp's larger camshafts are engineered for engines with less restrictive exhausts and drives that will tolerate higher idle speeds. An excellent choice for jet boats or power boats.

    Features:
  • Extremely wide powerband helps get boat on plane while making maximum horsepower
  • Work against exhaust systems with restrictive back pressure
  • Power enhancement helps maintain top end speed for long distances
  • Intended for applications where low idle speeds are required

    Camshaft & Lifter Kits are indicated by a CL in their part number and include Camshaft, Lifters, Assembly Lube, Decals, and Instructions.

    Complete Kits are indicated by a K in their part number and include Camshaft, Lifters, Timing Chain & Gears, Valve Springs, Retainers, Locks, Assembly Lube, Decals, and Instructions.

    Small Kits are indicated by a SK in their part number and include Camshaft, Lifters, Timing Chain Set, Assembly Lube, Decals, and Instructions.

  • Items You Need
    Some parts are not legal for use in California or other states with similar laws / regulations

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    Electrical Cords

    WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.