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COMP Cams 12-236-3

COMP Cams Comp Cams Xtreme Marine Hydraulic Flat Tappet Camshafts

249-12-236-3

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$20 off $200, $50 off $500 and $100 off $1,000 Order. Promotion Code: SPRINGSAVINGS exclusions apply

$131.99
COMP Cams Comp Cams Xtreme Marine Hydraulic Flat Tappet Camshafts $131.99
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Xtreme Marine Hydraulic Flat Tappet Camshaft
Chevy Small Block 262-400ci 1955-98
Lift: .462"/.477"
Duration: 262°/268°
Lobe Separation Angle: 112°
RPM Range: 1300-5500

COMP Cams 12-236-3 Details

Chevy Small Block 262-400ci 1955-98

*Note: In order to use these camshafts in 1955-57 265ci blocks, it is necessary to machine a small groove in the rear main journal of the cam to allow oil flow to the top of the engine.

Biggest cam for inboard/outboard, good mid-range with excellent response, noticeable idle.

Operating Range:1300-5500 RPM
Duration Advertised:262° Intake / 268° Exhaust
Duration @ .050'' Lift:218° Intake / 224° Exhaust
Valve Lift w/1.5 Rockers:.462'' Intake / .477'' Exhaust
Lobe Separation Angle:112°

Specifications:

Exh. Duration @ .050 in. (Deg)
224
Exh. Duration Advertised (Deg)
268
Exhaust Valve Lift (in.)
0.477
Int. Duration @ .050 in. (Deg)
218
Intake Valve Lift (in.)
0.462
Usage
Marine
Quantity
Sold individually
Lobe Separation (Deg)
112
Exhaust Valve Lift with Factory Rocker Arm Ratio (
0.477
Intake Valve Lift with Factory Rocker Arm Ratio (i
0.462
Valve Lift with Factory Rocker Arm Ratio
0.462 int./0.477 exh.
Advertised Duration
262 int./268 exh.
Computer-Controlled Compatible
No
Valve Springs Required
Yes
Cam Style
Hydraulic flat tappet
Exhaust Duration at 050 inch Lift
224
Intake Duration at 050 inch Lift
218
Duration at 050 inch Lift
218 int./224 exh.
Advertised Intake Duration
262
Advertised Exhaust Duration
268
Basic Operating RPM Range
1,300-5,500
Grind Number
CS XM 262H-12
Manufacturer's Part Number:
12-236-3
Shipping Weight:
9
Package Height:
2.75
Package Depth:
24.5
Package Width:
2.87

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.

  • are these made for reverse rotation engines too?

    Asked by: ThomasCBarkley
    Comp cams will grind reverse rotation camshafts - Please call our tech line for assistance 1-800-345-4545 ext 2001
    Answered by: Rusty B
    Date published: 2017-11-30
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