*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?

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Aspiration

1969-1973 GMC K25/K2500 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 )

1977-1979 CHEVROLET C20 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: SILVERADO
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1978-1979 PONTIAC LEMANS

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

1981-1986 GMC C2500 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 )

1958 CHEVROLET DEL RAY

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 )

1968 GMC K35/K3500 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 )

1978-1979 PONTIAC LEMANS

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

1977 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: SPORT
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1964-1965 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: BASE
CUI: 327
EngineType: V8 ( 5.3 L / 327 )

1979 CHEVROLET MONZA

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 5.0
SubModel: 2+2
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1972 CHEVROLET BROOKWOOD

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 )

1972 CHEVROLET KINGSWOOD

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

1970-1971 CHEVROLET EL CAMINO

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 )

1975-1980 GMC K1500 PICKUP

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

1984 CHEVROLET BLAZER K5

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 )

1973-1974 CHEVROLET LAGUNA

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 )

1967-1968 CHEVROLET K20 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 )

1967 GMC G15/G1500 VAN

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 )

1974 CHEVROLET EL CAMINO

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

1976 GMC SPRINT

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

1978-1980 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 )

1982-1986 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: CUSTOM
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1978 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 GRANDE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1968 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: 307
EngineType: V8 ( 5.0 L / 307 )

1979-1986 GMC C1500 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 )

1981 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: DELUXE
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1967-1968 GMC C35/C3500 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 )

1972 CHEVROLET TOWNSMAN

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 )

1969-1971 CHEVROLET CHEVELLE

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

1968-1972 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: NOMAD
CUI: 307
EngineType: V8 ( 5.0 L / 307 )

1968-1969 GMC G25/G2500 VAN

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

1980 CHEVROLET MALIBU

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

1977-1978 GMC K25 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 )

1980-1981 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: SCOTTSDALE
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: 5.7
SubModel: SIERRA CLASSIC
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1981-1986 CHEVROLET EL CAMINO

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

1977-1979 OLDSMOBILE STARFIRE

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 )

1983-1986 PONTIAC BONNEVILLE

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 )

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 )

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 )

1980 OLDSMOBILE CUTLASS CRUISER

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 )

1967 GMC C25/C2500 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 )

1981 CHEVROLET C20 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 )

1975 CHEVROLET MALIBU

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 )

1972 CHEVROLET EL CAMINO

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 GMC G25/G2500 VAN

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

1974 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
Aspiration: N
SubModel: BASE
Engine Vin: T
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1977 GMC K1500 PICKUP

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

1978-1982 GMC JIMMY

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

1981-1986 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
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1981 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: DELUXE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1971 GMC G35/G3500 VAN

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 )

1980 CHEVROLET K20 PICKUP

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 )

1986 CHEVROLET G10 VAN

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

1968-1971 GMC K1500 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 )

1979 CHEVROLET BLAZER K5

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 )

1973-1974 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: BASE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1972-1973 CHEVROLET K30 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 )

1977-1979 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: SCOTTSDALE
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1980 CHEVROLET IMPALA

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 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: 300 DELUXE
CUI: 307
EngineType: V8 ( 5.0 L / 307 )

1968 CHEVROLET BISCAYNE

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 )

1981-1986 GMC CABALLERO

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

1977-1978 CHEVROLET K20 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: CUSTOM DELUXE
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1981-1986 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: CUSTOM
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1976-1980 CHEVROLET C10 PICKUP

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

1968 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: BASE
CUI: 307
EngineType: V8 ( 5.0 L / 307 )

1972 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: BASE
Engine Vin: K
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

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: SILVERADO
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1974 CHEVROLET MALIBU

CC: 6556
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 )

1975-1986 GMC K1500 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 )

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: BASE
CUI: 400
EngineType: V8 ( 6.6 L / 400 )

1975-1978 CHEVROLET G30 VAN

Fitment_Note: Stock Springs Cannot Be Used~Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Liter: 6.6
SubModel: SPORTVAN
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 )

1985 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: BEAUVILLE
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1985-1986 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: SILVERADO
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1975-1986 CHEVROLET G20 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 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 SS
CUI: 327
EngineType: V8 ( 5.3 L / 327 )

1969-1973 GMC C35/C3500 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 )

1983 CHEVROLET MONTE CARLO

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

1977-1986 GMC G15/G1500 VAN

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

1975-1985 GMC JIMMY

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 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: HIGH SIERRA
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1978 CHEVROLET K5 BLAZER

CC: 5031
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 )

1975-1980 CHEVROLET C20 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 )

1979-1980 GMC K3500 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 )

1975-1979 CHEVROLET G30 VAN

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

1980 OLDSMOBILE CUTLASS CRUISER

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 )

1973 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
SubModel: ESTATE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1984-1986 CHEVROLET G20 VAN

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

1971-1973 GMC SPRINT

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 )

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: CHEYENNE
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1977-1979 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: SILVERADO
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1981-1986 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: CUSTOM
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1978-1979 PONTIAC PHOENIX

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 )

1979-1986 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: BASE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1969-1971 CHEVROLET C30 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 )

1957 CHEVROLET TWO-TEN SERIES

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

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: BASE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1978 BUICK LESABRE

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 )

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

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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?

1969-1973 GMC K25/K2500 SUBURBAN

1977-1979 CHEVROLET C20 PICKUP

1978-1979 PONTIAC LEMANS

1981-1986 GMC C2500 SUBURBAN

1958 CHEVROLET DEL RAY

1968 GMC K35/K3500 PICKUP

1978-1979 PONTIAC LEMANS

1977 CHEVROLET MALIBU

1964-1965 CHEVROLET EL CAMINO

1979 CHEVROLET MONZA

1972 CHEVROLET BROOKWOOD

1972 CHEVROLET KINGSWOOD

1970-1971 CHEVROLET EL CAMINO

1975-1980 GMC K1500 PICKUP

1984 CHEVROLET BLAZER K5

1973-1974 CHEVROLET LAGUNA

1967-1968 CHEVROLET K20 PICKUP

1967 GMC G15/G1500 VAN

1974 CHEVROLET EL CAMINO

1976 GMC SPRINT

1978-1980 CHEVROLET C10 SUBURBAN

1982-1986 CHEVROLET C10 SUBURBAN

1978 GMC C15 SUBURBAN

1968 CHEVROLET IMPALA

1979-1986 GMC C1500 SUBURBAN

1981 CHEVROLET C10 PICKUP

1967-1968 GMC C35/C3500 PICKUP

1972 CHEVROLET TOWNSMAN

1969-1971 CHEVROLET CHEVELLE

1968-1972 CHEVROLET CHEVELLE

1968-1969 GMC G25/G2500 VAN

1980 CHEVROLET MALIBU

1977-1978 GMC K25 PICKUP

1980-1981 CHEVROLET C10 PICKUP

1980 GMC C2500 SUBURBAN

1981-1986 CHEVROLET EL CAMINO

1977-1979 OLDSMOBILE STARFIRE

1983-1986 PONTIAC BONNEVILLE

1977-1978 GMC K15 SUBURBAN

1972 CHEVROLET CORVETTE

1980 OLDSMOBILE CUTLASS CRUISER

1967 GMC C25/C2500 PICKUP

1981 CHEVROLET C20 PICKUP

1975 CHEVROLET MALIBU

1972 CHEVROLET EL CAMINO

1973 GMC G25/G2500 VAN

1974 CHEVROLET MONTE CARLO

1977 GMC K1500 PICKUP

1978-1982 GMC JIMMY

1981-1986 CHEVROLET K30 PICKUP

1981 CHEVROLET C30 PICKUP

1971 GMC G35/G3500 VAN

1980 CHEVROLET K20 PICKUP

1986 CHEVROLET G10 VAN

1968-1971 GMC K1500 PICKUP

1979 CHEVROLET BLAZER K5

1973-1974 CHEVROLET C10 SUBURBAN

1972-1973 CHEVROLET K30 PICKUP

1977-1979 CHEVROLET K10 PICKUP

1980 CHEVROLET IMPALA

1968-1969 CHEVROLET CHEVELLE

1968 CHEVROLET BISCAYNE

1981-1986 GMC CABALLERO

1977-1978 CHEVROLET K20 SUBURBAN

1981-1986 CHEVROLET C20 SUBURBAN

1976-1980 CHEVROLET C10 PICKUP

1968 CHEVROLET C20 SUBURBAN

1972 CHEVROLET CAPRICE

1979 CHEVROLET C20 SUBURBAN

1974 CHEVROLET MALIBU

1975-1986 GMC K1500 PICKUP

1977-1978 GMC K35 PICKUP