GMC C5000 Performance Engines

Ideal for use with mainly stock components like rocker arms, intake manifolds, cylinder heads, compression ratio, torque converters and rear gear ratios, the High Energy camshaft grind family is a great choice for street performance applications.

Product Features:

• Good blend of efficiency and performance.
• Perfect choice for performance street rebuilds.
• Work well with mainly stock components such as rockers, manifolds, heads, compression, torque converters and gears.

HYDRAULIC – Xtreme Energy: Good for street machines, slightly rough idle, stock converter will work but best with 1800+ stall.

Product Features:

• HYDRAULIC – Xtreme Energy: Good for street machines, slightly rough idle, stock converter will work but best with 1800+ stall.
• 268/280 Advertised Duration, 224/230 Duration @ .050″, .515″/.520″ Lift, 110 Lobe Separation
• Valve spring upgrade required
• Best performance with aftermarket intake manifolds, headers, lower gear ratios etc.

An older member of the COMP Cams grind family, the Magnum series of camshafts offers excellent performance gains over stock without the added wear and tear associated with more aggressive camshafts.

Product Features:

• Best with aftermarket torque converters and 9.5:1 compression.
• Great high RPM power.
• Easy on valve train parts.
• Can be used with mild ratio rocker arms and traditional performance valve springs.

HYDRAULIC – Big Mutha’ Thumpr: Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.

Product Features:

• HYDRAULIC – Big Mutha’ Thumpr: Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.
• 295/312 Advertised Duration, 243/257 Duration @ .050″, .522″/.507″ Lift, 107 Lobe Separation
• Valve spring upgrade required

Featuring a quicker valve opening, the Xtreme Energy camshaft profile provides increased responsiveness and more area under the lift curve than older, slower grinds. Designed to increase performance without sacrificing driveability and creature comforts,

Product Features:

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

HYDRAULIC – Thumpr: High performance street, stock converter ok, best with 2000+ converter and gears. Choppy/thumping idle.

Product Features:

• HYDRAULIC – Thumpr: High performance street, stock converter ok, best with 2000+ converter and gears. Choppy/thumping idle.
• 279/296 Advertised Duration, 227/241 Duration @ .050″, .498″/.483″ Lift, 107 Lobe Separation
• Valve spring upgrade required

These High Energy Die Cast Aluminum Roller Rocker Arms for Chevy V8 396-454 applications are perfect for street and moderate race use. With a 7/16″ stud diameter and 1.7 ratio, the die cast, larger-than-stock body of the rocker arms is made of aluminum for superior strength with light overall weight. High Energy Die Cast Aluminum Roller Rocker Arms from COMP Cams are an affordable option that feature a die cast, aluminum body with a needle bearing fulcrum and roller tip. Designed to be stiffer and more durable, these cost effective rocker arms are capable of providing added valve lift while withstanding the rigors of a performance application. Their specially engineered fulcrum and roller tip create far less friction than sliding factory models to lower oil temperatures, thus improving both response and horsepower. Snap rings are used to hold the trunion and bearings locked in place.

Product Features:

• Cost effective aluminum construction provides superior strength to weight ratio
• Needle bearing fulcrum and roller tip reduce friction and lower oil temperatures for improved response and horsepower
• Durable design increases valve lift while withstanding the rigors of moderate race use
• Die-formed aluminum body is larger than stock, and may require modifications to stock valve covers for clearance.

Featuring a quicker valve opening, the Xtreme Energy camshaft profile provides increased responsiveness and more area under the lift curve than older, slower grinds. Designed to increase performance without sacrificing driveability and creature comforts.

Product Features:

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

Featuring a quicker valve opening, the Xtreme Energy camshaft profile provides increased responsiveness and more area under the lift curve than older, slower grinds. Designed to increase performance without sacrificing driveability and creature comforts.

Product Features:

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

An older member of the COMP Cams grind family, the Magnum series of camshafts offers excellent performance gains over stock without the added wear and tear associated with more aggressive camshafts.

Product Features:

• Best with aftermarket torque converters and 9.5:1 compression.
• Great high RPM power.
• Easy on valve train parts.
• Can be used with mild ratio rocker arms and traditional performance valve springs.

Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods.

Product Features:

• Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note.
• Best with aftermarket converters and more rear gear.
• Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve; perfect choice for muscle cars and street rods.

Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods.

Product Features:

• Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note.
• Best with aftermarket converters and more rear gear.
• Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve; perfect choice for muscle cars and street rods.

BIG BLOCK CHEVY HYDRAULIC CAM AND LIFTER KIT – Big Mutha’ Thumpr: Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.

Product Features:

• Cam and lifter kit for Big Block Chevy engines
• CL-Kit includes cam, lifters, assembly lube, instructions and decals
• HYDRAULIC – Big Mutha’ Thumpr: Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.
• 295/312 Advertised Duration, 243/257 Duration @ .050″, .522″/.507″ Lift, 107 Lobe Separation
• Valve spring upgrade required

Ideal for use with mainly stock components like rocker arms, intake manifolds, cylinder heads, compression ratio, torque converters and rear gear ratios, the High Energy camshaft grind family is a great choice for street performance applications.

Product Features:

• Good blend of efficiency and performance.
• Perfect choice for performance street rebuilds.
• Work well with mainly stock components such as rockers, manifolds, heads, compression, torque converters and gears.

Featuring a quicker valve opening, the Xtreme Energy camshaft profile provides increased responsiveness and more area under the lift curve than older, slower grinds. Designed to increase performance without sacrificing driveability and creature comforts.

Product Features:

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

Featuring a quicker valve opening, the Xtreme Energy camshaft profile provides increased responsiveness and more area under the lift curve than older, slower grinds. Designed to increase performance without sacrificing driveability and creature comforts.

Product Features:

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

Our unique Multi-Layered steel head gasket embossment formation process optimizes the embossment radius, reduces stress points, enhances gasket conformability, and provides uniform clamp load distribution. This all results in superior surface contact between block and cylinder head. All head gasket layers/spacers go through an additional process to significantly reduce forming induced stress. Advantages are reduced brittleness in material, increased flexibility and deformation retention. This stabilizes the gasket, resulting in reduced cylinder bore distortion and improved combustion seal fro the extreme cylinder pressures found in high compression, supercharged and turbocharged applications. A proprietary polymer coating ensures the micro-seal of engine coolant and oil fluids.brbrA typical MLS head gasket requires a smoother (30Ra) surface finish than composite head gaskets. Mr. Gasket’s proprietary polymer coating will seal a surface finish twice as rough (60Ra) as a typical MLS head gasket. For high performance street, drag race and oval track use.

Product Features:

• Gasket bore – 4.060″ Thickness – .040″
• Manufactured from 3-layer premium grade stainless steel and state of the art laser cutting
• Optimized sealing embossments seals extreme cylinder pressure
• Provides excellent stability and reduces cylinder bore distortion.
• Proprietary polymer coating ensures the micro seal of engine coolant and oil fluids.
• Ideal for supercharged, turbocharged, nitrous oxide and extreme compression ratio engines
• For high-performance street, drag race and oval track use