*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.

Great for street machines, largest cam for stock converter.

Operating Range:	1600-5800 RPM
Duration Advertised:	268° Intake / 280° Exhaust
Duration @ .050'' Lift:	224° Intake / 230° Exhaust
Valve Lift w/1.5 Rockers:	.477'' Intake / .480'' Exhaust
Lobe Separation Angle:	110°

Specifications:

Intake Valve Lift (in.)

0.477

Exhaust Valve Lift (in.)

0.48

RPM Range

1600-5800

Int. Duration @ .050 in. (Deg)

224

Exh. Duration @ .050 in. (Deg)

230

Int. Duration Advertised (Deg)

268

Exh. Duration Advertised (Deg)

280

Engine Make/Size

Chevy Small Block (262-400)

Lifter Type

Hydraulic Flat Tappet

Usage

Street/Performance

Gaskets Included

Advertised Duration

268 int./280 exh.

Advertised Exhaust Duration

280

Advertised Intake Duration

268

Assembly Lubricant Included

Yes

Basic Operating RPM Range

1,600-5,800

Cam Style

Hydraulic flat tappet

Computer-Controlled Compatible

Duration at 050 inch Lift

224 int./230 exh.

Exhaust Duration at 050 inch Lift

230

Exhaust Valve Lift with Factory Rocker Arm Ratio (

0.48

Grind Number

CS XE268H-10

Intake Duration at 050 inch Lift

224

Intake Valve Lift with Factory Rocker Arm Ratio (i

0.477

Lifter Style

Hydraulic flat tappet

Lifters Included

Yes

Locks Included

Pushrods Included

Quantity

Sold as a kit

Retainers Included

Rocker Arms Included

Timing Chain and Gears Included

Valve Lift with Factory Rocker Arm Ratio

0.477 int./0.480 exh.

Valve Springs Included

Valve Springs Required

Yes

Valve Stem Seals Included

Lobe Separation (Deg)

110

Manufacturer's Part Number:

CL12-242-2

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.

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.

Does COMP Cams CL12-242-2 fit your vehicle?

Narrow Results

Filter By
Year

Filter By
Make

BUICK CHEVROLET GMC OLDSMOBILE PONTIAC

Filter By
Model

BEL AIR BISCAYNE BLAZER BLAZER K5 BONNEVILLE BROOKWOOD C10 PICKUP C10 SUBURBAN C15 SUBURBAN C15/C1500 SUBURBAN C1500 PICKUP C1500 SUBURBAN C20 PICKUP C20 SUBURBAN C25 SUBURBAN C25/C2500 PICKUP C25/C2500 SUBURBAN C2500 PICKUP C2500 SUBURBAN C30 PICKUP C35/C3500 PICKUP C3500 PICKUP CABALLERO CAMARO CAPRICE CENTURY CHEVELLE CHEVY II CORVETTE CUSTOM CRUISER CUTLASS CUTLASS CALAIS CUTLASS CRUISER CUTLASS SALON CUTLASS SUPREME DEL RAY DELTA 88 EL CAMINO FIREBIRD G10 VAN G15/G1500 VAN G20 VAN G25/G2500 VAN G30 VAN G35/G3500 VAN GRAND AM GRAND LEMANS GRAND PRIX IMPALA JIMMY K10 PICKUP K10 SUBURBAN K15 SUBURBAN K15/K1500 SUBURBAN K1500 PICKUP K1500 SUBURBAN K20 PICKUP K20 SUBURBAN K25 PICKUP K25 SUBURBAN K25/K2500 PICKUP K25/K2500 SUBURBAN K2500 PICKUP K2500 SUBURBAN K30 PICKUP K35 PICKUP K35/K3500 PICKUP K3500 PICKUP K5 BLAZER KINGSWOOD LAGUNA LEMANS LESABRE MALIBU MONTE CARLO MONZA NOVA OMEGA ONE-FIFTY SERIES PARISIENNE PHOENIX REGAL SKYLARK SPRINT STARFIRE SUBURBAN SUNBIRD TOWNSMAN TRUCK TWO-TEN SERIES VENTURA

Filter By
SubModel

2+2 2+2 SPORT 2+2 SPYDER 300 300 DELUXE 442 AMARILLO BASE BEAUVILLE BERLINETTA BIG TEN BONAVENTURE BROUGHAM BROUGHAM LS CHEVY VAN CHEYENNE CL CLASSIC CLASSIC BROUGHAM CLASSIC ESTATE CLASSIC LANDAU CLASSIC SPORT CONCOURS CONCOURS ESTATE CONQUISTA CUSTOM CUSTOM DELUXE CUSTOM LANDAU DEL RAY DELUXE DIABLO ESPRIT ESTATE ESTATE WAGON F85 FIRENZA FLEETMASTER FORMULA GREENBRIER GT HEAVY HALF HI-CUBE HIGH SIERRA INDY HAULER IROC-Z LANDAU LAREDO LE LIMITED LJ LN LS LT LT RALLY SPORT MAGNAVAN MALIBU MIRAGE NOMAD NOVA NOVA SS POLICE RALLY RALLY CAMPER SPECIAL RALLY CUSTOM RALLY SPORT RALLY STX ROYAL KNIGHT ROYALE RS S S/E S3 SAFARI SCOTTSDALE SIERRA CLASSIC SIERRA GRANDE SIERRA MADRE DEL SUR SILVERADO SJ SP SPECIAL SPORT SPORTVAN SR SS STINGRAY STREET COUPE SX TOWNE COUPE TOWNE COUPE CABRIOLET TOWNE COUPE SPORT TRANS AM VANDURA VANDURA SPECIAL VISTA CRUISER VISTA CRUISER BROUGHAM Z28 Z28 INDIANAPOLIS 500 PACE CAR

Filter By
EngineType

V8 ( 4.3 L / 262 ) V8 ( 4.3 L / 265 ) V8 ( 4.6 L / 283 ) V8 ( 5.0 L / 305 ) V8 ( 5.0 L / 307 ) V8 ( 5.3 L / 327 ) V8 ( 5.4 L / 327 ) V8 ( 5.7 L / 350 ) V8 ( 5.7 L / 5736 CC ) V8 ( 6.6 L / 400 ) V8 ( 6.6 L / 402 )

Filter By
CC

4343 4638 5031 5358 5733 5735 5736 5737 6555 6556 6588

Filter By
Liter

4.3 4.6 5.0 5.3 5.4 5.7 6.6

Filter By
Aspiration

1975-1978 GMC C35/C3500 PICKUP

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: HIGH SIERRA
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1979 CHEVROLET MALIBU

CC: 5031
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: POLICE
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1973-1974 CHEVROLET CAPRICE

CC: 5737
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
Aspiration: N
SubModel: CLASSIC
Engine Vin: L
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1978-1979 CHEVROLET G30 VAN

CC: 5031
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: CHEVY VAN
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1979 BUICK CENTURY

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: SPECIAL
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1975-1977 GMC C15 SUBURBAN

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: BASE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1975-1976 CHEVROLET IMPALA

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 6.6
SubModel: SPORT
CUI: 400
EngineType: V8 ( 6.6 L / 400 )

1973 CHEVROLET CHEVELLE

CC: 5031
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: DELUXE
CUI: 307
EngineType: V8 ( 5.0 L / 307 )

1977-1978 GMC K35 PICKUP

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 6.6
SubModel: SIERRA GRANDE
CUI: 400
EngineType: V8 ( 6.6 L / 400 )

1977-1978 CHEVROLET K5 BLAZER

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: CUSTOM DELUXE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1978-1979 OLDSMOBILE OMEGA

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: BROUGHAM
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1979 CHEVROLET CAPRICE

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: CLASSIC
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1974 CHEVROLET CAMARO

CC: 5736
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
Aspiration: N
SubModel: LT
Engine Vin: L
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1977-1978 GMC K25 SUBURBAN

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: BASE
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1967 GMC C25/C2500 SUBURBAN

CC: 5358
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.3
SubModel: BASE
CUI: 327
EngineType: V8 ( 5.3 L / 327 )

1980 CHEVROLET CAPRICE

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: CLASSIC
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1975-1976 CHEVROLET EL CAMINO

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 6.6
SubModel: CLASSIC
CUI: 400
EngineType: V8 ( 6.6 L / 400 )

1973-1974 CHEVROLET C20 SUBURBAN

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: BASE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1968 CHEVROLET BEL AIR

CC: 5031
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: BASE
CUI: 307
EngineType: V8 ( 5.0 L / 307 )

1979-1986 GMC K2500 SUBURBAN

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: SIERRA CLASSIC
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1979-1980 CHEVROLET BLAZER K5

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: CHEYENNE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1975-1979 GMC JIMMY

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 6.6
SubModel: HIGH SIERRA
CUI: 400
EngineType: V8 ( 6.6 L / 400 )

1981-1983 CHEVROLET IMPALA

CC: 5031
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: BASE
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1980 GMC C2500 SUBURBAN

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 6.6
SubModel: BASE
CUI: 400
EngineType: V8 ( 6.6 L / 400 )

1974 CHEVROLET MALIBU

CC: 5737
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
Aspiration: N
SubModel: BASE
Engine Vin: K
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1982-1986 GMC C1500 PICKUP

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: SIERRA CLASSIC
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1978 GMC C1500 PICKUP

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 6.6
SubModel: BASE
CUI: 400
EngineType: V8 ( 6.6 L / 400 )

1969-1971 CHEVROLET C10 PICKUP

CC: 5031
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: BASE
CUI: 307
EngineType: V8 ( 5.0 L / 307 )

1967-1968 GMC K1500 PICKUP

CC: 5358
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.3
SubModel: BASE
CUI: 327
EngineType: V8 ( 5.3 L / 327 )

1977-1979 GMC K1500 PICKUP

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: SIERRA GRANDE
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1971 CHEVROLET IMPALA

CC: 5736
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: BASE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1985-1986 GMC G25/G2500 VAN

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: VANDURA
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1977-1978 GMC K25 SUBURBAN

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: SIERRA GRANDE
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1978-1979 CHEVROLET C30 PICKUP

CC: 5031
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: CHEYENNE
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1982 CHEVROLET C20 SUBURBAN

CC: 5031
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: SCOTTSDALE
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1978 CHEVROLET C30 PICKUP

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: CHEYENNE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1979-1981 GMC C1500 SUBURBAN

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: HIGH SIERRA
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1958 CHEVROLET BISCAYNE

CC: 4638
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 4.6
SubModel: BASE
CUI: 283
EngineType: V8 ( 4.6 L / 283 )

1976 CHEVROLET CORVETTE

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
Aspiration: N
SubModel: STINGRAY
Engine Vin: L
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1970-1971 CHEVROLET G30 VAN

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: SPORTVAN
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1967 GMC C35/C3500 PICKUP

CC: 4638
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 4.6
SubModel: BASE
CUI: 283
EngineType: V8 ( 4.6 L / 283 )

1985-1986 CHEVROLET K20 PICKUP

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: SILVERADO
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1975-1978 GMC JIMMY

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 6.6
SubModel: BASE
CUI: 400
EngineType: V8 ( 6.6 L / 400 )

1975-1977 CHEVROLET C10 SUBURBAN

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: SILVERADO
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1984-1986 CHEVROLET K20 SUBURBAN

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: SCOTTSDALE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1978-1980 GMC C1500 PICKUP

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 6.6
SubModel: SIERRA GRANDE
CUI: 400
EngineType: V8 ( 6.6 L / 400 )

1975-1976 CHEVROLET CAPRICE

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: CLASSIC SPORT
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1979-1980 CHEVROLET BLAZER K5

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: CUSTOM DELUXE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1977-1978 GMC C25/C2500 PICKUP

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: HIGH SIERRA
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1969 CHEVROLET C10 PICKUP

CC: 5358
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.3
SubModel: BASE
CUI: 327
EngineType: V8 ( 5.3 L / 327 )

1977-1978 GMC K15 SUBURBAN

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: BASE
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1975-1978 GMC K25 PICKUP

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 6.6
SubModel: HIGH SIERRA
CUI: 400
EngineType: V8 ( 6.6 L / 400 )

1977 OLDSMOBILE OMEGA

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: F85
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1979-1980 CHEVROLET MALIBU

CC: 5031
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: CLASSIC SPORT
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1970-1971 CHEVROLET G20 VAN

CC: 5736
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: BASE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1976 CHEVROLET MALIBU

CC: 5031
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: CLASSIC
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1977-1980 CHEVROLET K30 PICKUP

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: CUSTOM DELUXE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1975-1976 CHEVROLET CAPRICE

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 6.6
SubModel: CLASSIC SPORT
CUI: 400
EngineType: V8 ( 6.6 L / 400 )

1980 CHEVROLET C10 PICKUP

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: BIG TEN
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1977-1978 GMC K35 PICKUP

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: SIERRA GRANDE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1969-1971 CHEVROLET K30 PICKUP

CC: 5736
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: BASE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1976-1980 CHEVROLET C20 PICKUP

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 6.6
SubModel: SILVERADO
CUI: 400
EngineType: V8 ( 6.6 L / 400 )

1975-1980 CHEVROLET K10 SUBURBAN

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: CUSTOM DELUXE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1980 CHEVROLET C10 PICKUP

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: SILVERADO
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1977-1979 CHEVROLET C20 SUBURBAN

CC: 5031
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: SCOTTSDALE
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1975-1980 CHEVROLET K10 SUBURBAN

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: SCOTTSDALE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1977-1981 PONTIAC FIREBIRD

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: FORMULA
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1983 GMC G25/G2500 VAN

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: VANDURA
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1981-1986 CHEVROLET G20 VAN

CC: 5031
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: CHEVY VAN
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1982 CHEVROLET C10 SUBURBAN

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: SCOTTSDALE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1979 GMC K1500 SUBURBAN

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: SIERRA CLASSIC
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1977-1978 GMC C25 SUBURBAN

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: SIERRA GRANDE
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1968-1969 CHEVROLET CAMARO

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.4
SubModel: RS
CUI: 327
EngineType: V8 ( 5.4 L / 327 )

1977-1978 CHEVROLET K20 PICKUP

CC: 5031
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: CUSTOM DELUXE
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1982 CHEVROLET G10 VAN

CC: 5031
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: BONAVENTURE
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1977 CHEVROLET MONZA

CC: 5031
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: TOWNE COUPE
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1968 GMC C1500 PICKUP

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.4
SubModel: BASE
CUI: 327
EngineType: V8 ( 5.4 L / 327 )

1972 CHEVROLET CORVETTE

CC: 5737
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
Aspiration: N
SubModel: BASE
Engine Vin: J
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1976-1980 CHEVROLET C20 PICKUP

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 6.6
SubModel: SCOTTSDALE
CUI: 400
EngineType: V8 ( 6.6 L / 400 )

1973 CHEVROLET MONTE CARLO

CC: 5737
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: BASE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1973 CHEVROLET CHEVELLE

CC: 5737
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
Aspiration: N
SubModel: DELUXE
Engine Vin: L
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1981 CHEVROLET CAMARO

CC: 5031
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: SPORT
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1972 CHEVROLET CHEVELLE

CC: 5737
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: GREENBRIER
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1975-1976 GMC SPRINT

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 6.6
SubModel: CLASSIC
CUI: 400
EngineType: V8 ( 6.6 L / 400 )

1975-1978 GMC K25 PICKUP

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 6.6
SubModel: SIERRA GRANDE
CUI: 400
EngineType: V8 ( 6.6 L / 400 )

1977-1986 GMC C1500 PICKUP

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: SIERRA CLASSIC
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1979 GMC C3500 PICKUP

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 6.6
SubModel: HIGH SIERRA
CUI: 400
EngineType: V8 ( 6.6 L / 400 )

1972 CHEVROLET CHEVELLE

CC: 5737
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: CONCOURS
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1981 CHEVROLET K10 PICKUP

CC: 5031
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: DELUXE
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1970-1971 CHEVROLET MONTE CARLO

CC: 5736
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: BASE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1968-1969 CHEVROLET EL CAMINO

CC: 5358
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.3
SubModel: CUSTOM
CUI: 327
EngineType: V8 ( 5.3 L / 327 )

1979-1982 GMC K3500 PICKUP

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: SIERRA GRANDE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1975-1977 GMC C15 SUBURBAN

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: SIERRA CLASSIC
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1981 CHEVROLET K20 PICKUP

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.7
SubModel: DELUXE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1968 CHEVROLET CHEVELLE

CC: 5358
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.3
SubModel: MALIBU
CUI: 327
EngineType: V8 ( 5.3 L / 327 )

1972-1973 CHEVROLET K10 SUBURBAN

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: BASE
CUI: 307
EngineType: V8 ( 5.0 L / 307 )

1973-1974 CHEVROLET CAPRICE

CC: 6556
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 6.6
SubModel: ESTATE
CUI: 400
EngineType: V8 ( 6.6 L / 400 )

1978-1980 GMC CABALLERO

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: LAREDO
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1965 CHEVROLET CHEVELLE

CC: 4638
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 4.6
SubModel: SS
CUI: 283
EngineType: V8 ( 4.6 L / 283 )

1965-1968 CHEVROLET CHEVY II

CC: 5358
Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.3
SubModel: NOVA
CUI: 327
EngineType: V8 ( 5.3 L / 327 )

1 2 ... 17 >

CL12-242-2 - Comp Cams 'Xtreme Energy' Hydraulic Flat Tappet Camshafts is rated 4.7 out of 5 by 3.

Rated 5 out of 5 by Lee roy from comp cams I haven't had a chance to install this on yet,but I have purchased many in the past and I have confidence that this one will be perfect like the others

Date published: 2016-02-20

Rated 4 out of 5 by tommy1955 from Just what I wanted. The cam kit is just what I wanted, not real radical but a noticeable HP gain and a great sound. The only problem I had with the kit was, there was no cam lube enclosed as advertised.

Date published: 2014-11-02

Is this cam a cast or billet cam? Can I use a 4340 Chrome Moly distributor gear?

Asked by: MJC96

This is a cast camshaft and you should be able to use any style distributor gear.

Answered by: Rusty B

Date published: 2018-06-21

Will this cam work with a 1996 vortec 350 and trying to find a cam to get a good sound out of something above stock

Asked by: Eazyrider32

This cam is not compatible with the '96 Vortec engine.

Answered by: Jon Jegs Tech

Date published: 2018-02-23

Will this cam set works with a stock lt1 buick roadmaster engine

Asked by: Vedo

This cam will not fit the LT1 engine.

Answered by: Jon Jegs Tech

Date published: 2018-02-01

What would be a good valve spring kit to go along with this cam as I do not want to use the stock springs

Asked by: Russ79

Comp Cams 981-16 would be their recommended spring to use.

Answered by: Dean R

Date published: 2018-03-13

Items You Need

JEGS 28060 - 12oz Break-In/Engine Oil Supplement

Only $7.99

Ships Today

JEGS 20412 - Timing Chain Set for 1955-1992 Small Block Chevy 265-400

Only $35.94

Ships Today

JEGS 80521 - Stud Mounted Valve Spring Compressor Tool

Only $44.94

Ships Today

See All Items You Need

Some parts are not legal for use in California or other states with similar laws / regulations

Top Categories

All Categories

createCookie('continuePage',window.location,1);

COMP Cams Xtreme Energy 268H Hydraulic Flat Tappet Camshaft & Lifter Kit Lift: .477" /.480" Duration: 268°/280° RPM Range: 1600-5800

Part Number: 249-CL12-242-2

COMP Cams CL12-242-2 Details

Specifications:

Does COMP Cams CL12-242-2 fit your vehicle?

1975-1978 GMC C35/C3500 PICKUP

1979 CHEVROLET MALIBU

1973-1974 CHEVROLET CAPRICE

1978-1979 CHEVROLET G30 VAN

1979 BUICK CENTURY

1975-1977 GMC C15 SUBURBAN

1975-1976 CHEVROLET IMPALA

1973 CHEVROLET CHEVELLE

1977-1978 GMC K35 PICKUP

1977-1978 CHEVROLET K5 BLAZER

1978-1979 OLDSMOBILE OMEGA

1979 CHEVROLET CAPRICE

1974 CHEVROLET CAMARO

1977-1978 GMC K25 SUBURBAN

1967 GMC C25/C2500 SUBURBAN

1980 CHEVROLET CAPRICE

1975-1976 CHEVROLET EL CAMINO

1973-1974 CHEVROLET C20 SUBURBAN

1968 CHEVROLET BEL AIR

1979-1986 GMC K2500 SUBURBAN

1979-1980 CHEVROLET BLAZER K5

1975-1979 GMC JIMMY

1981-1983 CHEVROLET IMPALA

1980 GMC C2500 SUBURBAN

1974 CHEVROLET MALIBU

1982-1986 GMC C1500 PICKUP

1978 GMC C1500 PICKUP

1969-1971 CHEVROLET C10 PICKUP

1967-1968 GMC K1500 PICKUP

1977-1979 GMC K1500 PICKUP

1971 CHEVROLET IMPALA

1985-1986 GMC G25/G2500 VAN

1977-1978 GMC K25 SUBURBAN

1978-1979 CHEVROLET C30 PICKUP

1982 CHEVROLET C20 SUBURBAN

1978 CHEVROLET C30 PICKUP

1979-1981 GMC C1500 SUBURBAN

1958 CHEVROLET BISCAYNE

1976 CHEVROLET CORVETTE

1970-1971 CHEVROLET G30 VAN

1967 GMC C35/C3500 PICKUP

1985-1986 CHEVROLET K20 PICKUP

1975-1978 GMC JIMMY

1975-1977 CHEVROLET C10 SUBURBAN

1984-1986 CHEVROLET K20 SUBURBAN

1978-1980 GMC C1500 PICKUP

1975-1976 CHEVROLET CAPRICE

1979-1980 CHEVROLET BLAZER K5

1977-1978 GMC C25/C2500 PICKUP

1969 CHEVROLET C10 PICKUP

1977-1978 GMC K15 SUBURBAN

1975-1978 GMC K25 PICKUP

1977 OLDSMOBILE OMEGA

1979-1980 CHEVROLET MALIBU

1970-1971 CHEVROLET G20 VAN

1976 CHEVROLET MALIBU

1977-1980 CHEVROLET K30 PICKUP

1975-1976 CHEVROLET CAPRICE

1980 CHEVROLET C10 PICKUP

1977-1978 GMC K35 PICKUP

1969-1971 CHEVROLET K30 PICKUP

1976-1980 CHEVROLET C20 PICKUP

1975-1980 CHEVROLET K10 SUBURBAN

1980 CHEVROLET C10 PICKUP

1977-1979 CHEVROLET C20 SUBURBAN

1975-1980 CHEVROLET K10 SUBURBAN

1977-1981 PONTIAC FIREBIRD

1983 GMC G25/G2500 VAN

1981-1986 CHEVROLET G20 VAN

1982 CHEVROLET C10 SUBURBAN

1979 GMC K1500 SUBURBAN

1977-1978 GMC C25 SUBURBAN