COMP Cams Xtreme Energy 256H Hydraulic Flat Tappet Camshaft Small Kit Lift: .447"/.455" Duration: 256°/268° RPM Range: 1000-5200
249-SK21-221-4

Chrysler 383-440ci Big Block 1959-80
Single Bolt Gear
273, 360, 318, AMC, Dodge, Mopar, Plymouth, Dart, Road Runner, Charger, Challenger, 383, 400, 440, 426, HEMI, 426 Wedge, 426 HEMI, RB, B, HEMI, 392, Chrysler, LA
Strong torque through low end and mid-range, good idle.
Specifications:
The Leading Edge of Valve Train Technology Comp Cams Xtreme Energy series are perfect for 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 and greatest in valvetrain technology . 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 springs with these camshafts due to the aggressive lobe designs.
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.
Does COMP Cams SK21-221-4 fit your vehicle?
1968 DODGE POLARA
- Liter: 6.3
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- CUI: 383
- Engine Type: V8 ( 6.3L / 383 )
- Engine Vin: G
1974 PLYMOUTH SATELLITE
- Liter: 6.6
- SubModel: CUSTOM
- Aspiration: NATURALLY ASPIRATED
- CUI: 400
- Engine Type: V8 ( 6.6L / 400 )
- Engine Vin: N
1974 PLYMOUTH SATELLITE
- Liter: 6.6
- SubModel: SEBRING PLUS
- Aspiration: NATURALLY ASPIRATED
- CUI: 400
- Engine Type: V8 ( 6.6L / 400 )
- Engine Vin: N
1971 DODGE POLARA
- Liter: 6.3
- SubModel: BROUGHAM
- Aspiration: NATURALLY ASPIRATED
- CUI: 383
- Engine Type: V8 ( 6.3L / 383 )
- Engine Vin: L
1969 PLYMOUTH FURY
- Liter: 6.3
- SubModel: VIP
- Aspiration: NATURALLY ASPIRATED
- CUI: 383
- Engine Type: V8 ( 6.3L / 383 )
- Engine Vin: H
1959 CHRYSLER IMPERIAL
- Liter: 6.7
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- CUI: 413
- Engine Type: V8 ( 6.7L / 413 )
- Engine Vin: -
1971 DODGE W300 PICKUP
- Liter: 6.3
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- CUI: 383
- Engine Type: V8 ( 6.3L / 383 )
- Engine Vin: J
1968 DODGE MONACO
- Liter: 6.3
- SubModel: 500
- Aspiration: NATURALLY ASPIRATED
- CUI: 383
- Engine Type: V8 ( 6.3L / 383 )
- Engine Vin: G
1971 DODGE CHARGER
- Liter: 7.2
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- CUI: 440
- Engine Type: V8 ( 7.2L / 440 )
- Engine Vin: U
1968 PLYMOUTH SATELLITE
- Liter: 6.3
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- CUI: 383
- Engine Type: V8 ( 6.3L / 383 )
- Engine Vin: G
1971 PLYMOUTH FURY III
- Liter: 6.3
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- CUI: 383
- Engine Type: V8 ( 6.3L / 383 )
- Engine Vin: L
1968 CHRYSLER NEWPORT
- Liter: 7.2
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- CUI: 440
- Engine Type: V8 ( 7.2L / 440 )
- Engine Vin: K
Motor Vehicles
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Tools:
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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.