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COMP Cams 11-615-44

Comp Cams 4-Pattern Camshafts



COMP Cams 11-615-44

Part Number: 249-11-615-44

4-Pattern Retro-Fit Hydraulic Roller Camshaft
Big Block Chevy 396-454ci 1965-96
Intake Lift: .661"/.658"
Exhaust Lift: .648"/.644"
Lobe Separation Angle: 109.5°/108.5°
RPM Range: 2400-6700
$690.99

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COMP Cams 11-615-44 Comp Cams 4-Pattern Camshafts $690.99

COMP Cams 11-615-44 Details

Big Block Chevy 396-454ci 1965-96

  • Retro-Fit

    Intake Duration: 283°/281°
    Exhaust Duration: 295°/293°

    Best choice for street 396-454c.i. engines with good cylinder heads. Very wide power range. 2600+ stall.

  • Specifications:

    Exhaust Valve Lift (in.)
    0.648
    Exh. Duration @ .050 in. (Deg)
    241
    Int. Duration Advertised (Deg)
    283
    Exh. Duration Advertised (Deg)
    295
    Engine Make/Size
    Chevy Big Block (396-454)
    Lifter Type
    Hydraulic Roller Retrofit
    Usage
    Street/Performance
    Intake Valve Lift (in.)
    0.661
    Int. Duration @ .050 in. (Deg)
    231
    RPM Range
    2400-6700
    Advertised Duration
    283 int./295 exh., 281 int./293 exh.
    Advertised Exhaust Duration
    295/293
    Advertised Intake Duration
    283/281
    Basic Operating RPM Range
    2,400-6,700
    Cam Style
    Hydraulic roller tappet
    Camshaft Gear Attachment
    3-bolt
    Computer-Controlled Compatible
    No
    Duration at 050 inch Lift
    231 int./241 exh., 229 int./239 exh.
    Exhaust Duration at 050 inch Lift
    241/239
    Exhaust Valve Lift with Factory Rocker Arm Ratio (
    0.648/0.644
    Grind Number
    281QIO9
    Intake Duration at 050 inch Lift
    231/229
    Intake Valve Lift with Factory Rocker Arm Ratio (i
    0.661/0.658
    Quantity
    Sold individually
    Valve Lift with Factory Rocker Arm Ratio
    0.661 int./0.648 exh., 0.658 int./0.644 exh.
    Valve Springs Required
    Yes
    Lobe Separation (Deg)
    109.5/108.5
    Manufacturer's Part Number:
    11-615-44

    Comp Cams 4-Pattern Camshafts are hydraulic rollers designed to optimize valve events based on runner length and feature a large increase in both area under the curve and stability at high RPM

    To make the most power from your engine, you need to optimize the air ingested and captured by avoiding valves closing too soon or too late. Any conventional center layout single throttle body or carbureted V8 intake manifold features longer outboard runners and shorter inboard runners, meaning that each valve event should occur at a different moment.

    COMP Cams 4-Pattern Camshafts are the very first series of cams designed to accommodate this difference in length and avoid valves closing at the wrong times. NASCAR teams have been using camshafts designed this way for years, and using lessons learned along with them, COMP Cams has designed a series of cams that optimizes valve events and features a large increase in both area under the curve and stability at high RPM.

    The camshafts feature four different lobe patterns with one intake and exhaust design for outboard runners, and another intake and exhaust design for the inboard runners. While the four inboard cylinders are all the same grinds, the outboard exhaust openings are two degrees earlier, with outboard intake closings coming two degrees later. This is the first ever use of technology in street vehicles to balance air/fuel ratio per cylinder and can net you a possible 1000+ RPM over other hydraulic rollers and anywhere from 5-20+ horsepower peak to peak, depending on cylinder head flow.

    The 4-Pattern hydraulic roller cams are CNC-Machined from steel billet cores with cast iron distributor drive gears. The cams also feature a tight lobe separation for both excellent performance and a throaty sound.

    Note: Upgraded valve train components and aftermarket cylinder heads required.

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