Ontario Bus Engine Parts

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.

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.

HYDRAULIC – Xtreme Energy: Strong torque. Excellent response, heavy towing in 454 with 4.10 gear.

Product Features:

• HYDRAULIC – Xtreme Energy: Strong torque. Excellent response, heavy towing in 454 with 4.10 gear.
• 262/270 Advertised Duration, 218/224 Duration @ .050″, .504″/.510″ Lift, 110 Lobe Separation
• Valve spring upgrade required
• Best performance with aftermarket intake manifolds, headers, lower gear ratios etc.

Every remanufactured engine is built to OEM or better standards, undergoing rigorous inspection and machining to meet or exceed original factory specifications. The process starts with 100% magnaflux crack detection on cast iron blocks, ensuring no hidden flaws compromise durability. Each block is precisely CNC machined and cylinders are honed to exact OEM cross-hatch patterns for optimal performance. Cylinder heads are resurfaced, inspected, and fitted with new valves, seals, and lifters-either OEM remanufactured or the highest-quality aftermarket options, selected based on which offers superior durability and reliability. Comprehensive pressure and vacuum testing guarantees leak-free operation. Only 100% new pistons, rings, bearings, seals, and critical components-never recycled-are used to deliver like-new performance and long-term dependability. Before shipment, every engine undergoes cold motored Sims testing to verify compression, oil pressure, torque-to-turn, and overall mechanical integrity. The result is a remanufactured engine engineered for maximum durability, reliability, and performance you can trust.

Product Features:

• 100% Magnaflux Inspection – Detects cracks invisible to the eye for superior reliability.
• Cold Motored Sims Testing – Every engine is tested for compression, oil pressure, and proper operation before it ships.
• New Pistons, Rings and Bearings – All critical internal components are brand new, never reused.
• OEM-Spec CNC Machining – Ensures a perfect fit and factory-quality performance.
• DYNAMIC ENGINE TESTING: Sims Testing – All engines are cold motored and checked and measured for proper torque to turn, cylinder compression, oil flow, oil pressure as well as monitored for any unusual noises inside the assembly.
• Product might not be available in all states due to local laws.

Xtreme Marine 230/236 Hydraulic Roller Cam K-Kit for Chevrolet Big Block 396-454

Xtreme Energy 242/248 Solid Roller Cam SK-Kit for Chevrolet Big Block 396-454

Sportsman Lifters from COMP Cams are designed to be a premium and lighter weight upgrade over Endure-X Lifters and a value alternative to the Elite Race option. Sportsman Lifters are offered in two configurations: a standard/traditional needle bearing axle/wheel design or an optional bronze bushing axle/wheel setup. And for Chevrolets, there are also left or right offset pushrod seat options. Each design features two pressurized EDM oil feeds to the axle, along with an edge orifice feed to the wheel. This design delivers a more reliable oil feed than most other options on the market. Sportsman Lifters also feature a shallower oil band than competitors’ versions for increased strength and rigidity, while internal machining helps to reduce weight. The body design utilizes a skirted wheel that strengthens the lifter ears and also provides more contact area with the lifter bore for further lifter stability. In addition, staked axles eliminate clips and provide robust axle retention. This permanent axle retention feature increases the stiffness of the lifter ears and helps prevent the ears from spreading. Sportsman Lifters are built from 8620 premium steel for increased strength and wear resistance and feature a captured link bar design. They utilize a tapered and slotted link bar tower for reduced weight and improved aesthetics. The lifters also feature a tall body to enable use in both standard and .300″ tall lifter bores – the result is increased strength and less lifter bore wear.

BLower 255/262 Solid Roller Cam SK-Kit for Chevrolet Big Block 396-454

X-Marine 254/260 Hydraulic Roller Cam and Lifter Kit Chevrolet Big Block 396-454

BLower 255/262 Solid Roller Cam and Lifter Kit for Chevrolet Big Block 396-454

X-Marine 230/236 Hydraulic Roller Cam and Lifter Kit Chevrolet Big Block 396-454

Nitrous HP 230/242 Hydraulic Roller Cam/Lifter Kit Chevrolet Big Block 396-454

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.

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.

Sportsman Lifters from COMP Cams are designed to be a premium and lighter weight upgrade over Endure-X Lifters and a value alternative to the Elite Race option. Sportsman Lifters are offered in two configurations: a standard/traditional needle bearing axle/wheel design or an optional bronze bushing axle/wheel setup. And for Chevrolets, there are also left or right offset pushrod seat options. Each design features two pressurized EDM oil feeds to the axle, along with an edge orifice feed to the wheel. This design delivers a more reliable oil feed than most other options on the market. Sportsman Lifters also feature a shallower oil band than competitors’ versions for increased strength and rigidity, while internal machining helps to reduce weight. The body design utilizes a skirted wheel that strengthens the lifter ears and also provides more contact area with the lifter bore for further lifter stability. In addition, staked axles eliminate clips and provide robust axle retention. This permanent axle retention feature increases the stiffness of the lifter ears and helps prevent the ears from spreading. Sportsman Lifters are built from 8620 premium steel for increased strength and wear resistance and feature a captured link bar design. They utilize a tapered and slotted link bar tower for reduced weight and improved aesthetics. The lifters also feature a tall body to enable use in both standard and .300″ tall lifter bores – the result is increased strength and less lifter bore wear.

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.

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.

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.

BIG BLOCK CHEVY HYDRAULIC CAM AND LIFTER KIT – Thumpr: High performance street, stock converter ok, best with 2000+ converter and gears. Choppy/thumping idle.

Product Features:

• Cam and lifter kit for Big Block Chevy engines
• CL-Kit includes cam, lifters, assembly lube, instructions and decals
• 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

4PT 253/263 HRLR BBC

4PT 241/251 HRLR BBC