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COMP Cams K12-443-8

Comp Cams Xtreme Energy Hydraulic Roller Camshafts

COMP Cams K12-443-8

249-K12-443-8

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Ships 12/05/16 if Ordered Today
COMP Cams K12-443-8 Comp Cams Xtreme Energy Hydraulic Roller Camshafts $1,003.99
Xtreme Energy XR294HR Hydraulic Roller Camshaft Complete Kit
Lift: .540''/.562''
Duration: 294°/300°
Lobe Separation Angle: 110°
RPM Range: 2800-6100

COMP Cams K12-443-8 Details

Chevy 262-400ci Small Block 1955-98
For engines NOT originally equipped with a hydraulic roller camshaft.

  Camshaft Specification Table
Part Number 249-K12-443-8
Engine 1955-1998 Chevrolet
262ci-400ci
8cyl.
Grind Number CS XR294HR-10
Description  

  Intake Exhaust
Valve Adjustment 0 0
Gross Valve Lift 0.54 0.562
Duration At 0.006 Tappet Lift 294 300

Valve Timing At 0.006    
  Open Close
Intake 41 73
Exhaust 84 36

These Specs Are For The Cam Installed At 106 Intake CL
  Intake Exhaust
Duration At 0.05 242 248
Lobe Lift 0.36 0.375
Lobe Separation 110  

Recommended Valve Springs 249-986-16

Specifications:

Intake Valve Lift (in.)
0.540
Exhaust Valve Lift (in.)
0.562
Int. Duration @ .050 in. (Deg)
242
Exh. Duration @ .050 in. (Deg)
248
RPM Range
2800-6100
Int. Duration Advertised (Deg)
294
Exh. Duration Advertised (Deg)
300
Engine Make/Size
Chevy Small Block (262-400)
Lifter Type
Hydraulic Roller
Usage
Street/Performance
Gaskets Included
No
Advertised Duration
294 int./300 exh.
Advertised Exhaust Duration
300
Advertised Intake Duration
294
Assembly Lubricant Included
No
Basic Operating RPM Range
2,800-6,100
Cam Style
Hydraulic roller tappet
Computer-Controlled Compatible
No
Duration at 050 inch Lift
242 int./248 exh.
Exhaust Duration at 050 inch Lift
248
Exhaust Valve Lift with Factory Rocker Arm Ratio (
0.562
Grind Number
CS XR294HR-10
Intake Duration at 050 inch Lift
242
Intake Valve Lift with Factory Rocker Arm Ratio (i
0.54
Lifter Style
Hydraulic roller
Lifters Included
Yes
Locks Included
Yes
Outside Diameter of Outer Spring (in.)
1.43
Pushrods Included
Yes
Quantity
Sold as a kit
Retainers Included
Yes
Rocker Arms Included
No
Timing Chain and Gears Included
Yes
Timing Chain Style
Double non-roller
Valve Lift with Factory Rocker Arm Ratio
0.540 int./0.562 exh.
Valve Springs Included
Yes
Valve Springs Required
No
Valve Stem Seals Included
Yes
Lobe Separation (Deg)
110
Manufacturer's Part Number:
K12-443-8

The Leading Edge of Valve Train Technology

Comp Cams Xtreme Energy series can be used in any street or street/strip application where both throttle response and top-end horsepower is desired. These camshafts are designed to take advantage of the latest improvements in valve train components and the newest developments in camshaft design. Their aggressive lobe design produces better throttle response and top end horsepower than other cams with the same duration @ .050'' lift, while delivering increased engine vacuum. We do not recommend the use of stock valve train components with these camshafts due to the aggressive lobe designs.

Features:
  • Quicker opening lobe profiles deliver increased responsiveness & more area under the lift curve
  • More vacuum allows an increase in duration for improved performance and assists power brakes
  • Excellent performance in street carbureted applications
  • Best performance with aftermarket intake manifolds, headers, lower gear ratios

    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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