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COMP Cams 11-240-4

Comp Cams Xtreme Marine Hydraulic Flat Tappet Camshafts

COMP Cams 11-240-4

249-11-240-4

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Ships 12/12/16 if Ordered Today
COMP Cams 11-240-4 Comp Cams Xtreme Marine Hydraulic Flat Tappet Camshafts $156.99
Xtreme Marine Hydraulic Flat Tappet Camshaft
Chevy Big Block 396-454ci 1965-96
Lift: .564"/.566"
Duration: 278°/292°
Lobe Separation Angle: 112°
RPM Range: 2000-6200

COMP Cams 11-240-4 Details

Chevy Big Block 396-454ci 1965-96

*Note: In order to use these camshafts in 1965-66 396/427ci blocks, it is necessary to machine a 3/16'' wide x 7/64'' deep groove in the rear main journal of the cam to allow oil flow to the top of the engine.

Jet with ''A'' impeller, needs improved intake, likes headers.

Operating Range:2000-6200 RPM
Duration Advertised:278° Intake / 292° Exhaust
Duration @ .050'' Lift:234° Intake / 244° Exhaust
Valve Lift w/1.7 Rockers:.564'' Intake / .566'' Exhaust
Lobe Separation Angle:112°

Specifications:

Intake Valve Lift (in.)
0.564
Exhaust Valve Lift (in.)
0.566
RPM Range
2000-6200
Int. Duration @ .050 in. (Deg)
234
Exh. Duration @ .050 in. (Deg)
237
Int. Duration Advertised (Deg)
278
Exh. Duration Advertised (Deg)
292
Engine Make/Size
Chevy Big Block (396-454)
Lifter Type
Hydraulic Flat Tappet
Usage
Marine
Lobe Separation (Deg)
112
Advertised Duration
278 int./292 exh.
Advertised Exhaust Duration
292
Advertised Intake Duration
278
Basic Operating RPM Range
2,000-6,200
Cam Style
Hydraulic flat tappet
Computer-Controlled Compatible
No
Duration at 050 inch Lift
234 int./244 exh.
Exhaust Duration at 050 inch Lift
244
Exhaust Valve Lift with Factory Rocker Arm Ratio (
0.567
Grind Number
CB XM 278H-12
Intake Duration at 050 inch Lift
234
Intake Valve Lift with Factory Rocker Arm Ratio (i
0.564
Quantity
Sold individually
Valve Lift with Factory Rocker Arm Ratio
0.564 int./0.567 exh.
Valve Springs Required
Yes
Manufacturer's Part Number:
11-240-4

A Unique Cam for Marine Applications

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.

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