Chevy Rebuild Kits

COMP CAM 12-250-3 Xtreme Energy 240/246 XE284H Camshaft Kit & High-Performance Lifters | LIFT: .507″/.510″ | FITS Chevy SBC 283 327 350 400 5.7 5.7L | Rough Idle | ++ HP & Torque

SKU: OX-28TQ-HVAU In stock

$375.00

Brand: REDLINE ENGINE SUPPLY
Condition: New
– COMPETITION CAMS XE284H ACCURATE SPECS: Features the 12-250-3 grind with 284°/296° Advertised Duration, 240°/246° Duration @ .050″, and a massive .507″/.510″ Valve Lift.
– HIGH-RPM PERFORMANCE RANGE: Engineered for a 2,300–6,500 RPM power band, making it the ultimate choice for street-strip applications where mid-range torque and top-end horsepower are the priorities.
– THE “XTREME ENERGY” FEEL: You should buy this cam to experience the fastest opening ramp rates in the industry; it makes your engine feel much more responsive and “snappy” than traditional lazy-profile cams.
– RADICAL MUSCLE CAR IDLE: Provides a heavy, rhythmic performance idle that provides a clear, aggressive mechanical statement at every stoplight while maintaining the vacuum needed for power brakes.
– DUAL-PATTERN TECHNOLOGY: Features extra duration on the exhaust side to help high-revving Small Blocks breathe, maximizing the efficiency of your headers and exhaust system.

  • 2 years warranty
  • Delivery time: 1-2 business days
  • Free 90 days return
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Description

The Xtreme Energy Advantage The Competition Cams 12-250-3 is the most aggressive street-driven profile in the Xtreme Energy series. Designed to provide a significant boost in torque and horsepower, this camshaft utilizes a modern lobe design that opens the valves quicker and keeps them open longer. This “fast-ramp” technology allows your engine to breathe much more efficiently than standard performance cams. You should buy this kit if you want the most powerful hydraulic flat-tappet street cam available for your Chevy without moving to a full-race solid lifter setup.

Aggressive Power Band and Feel This is a high-performance cam engineered for an operating range of 2,300–6,500 RPM. On the road, this cam feels “electric”—as soon as you hit 2,500 RPM, the engine comes alive with a violent surge of power that doesn’t quit until the redline. It is the perfect choice for vehicles equipped with a 2,800+ stall converter and performance rear-end gears. You should buy this to transform a standard Small Block into a high-revving street-strip machine that pulls harder than anything in its class.

That Radical Performance Sound If you want your car to sound as fast as it looks, this is the cam to buy. Ground with a 110-degree lobe separation angle, it delivers a rough, radical, and unmistakable lope at idle. This is the signature “big cam” sound that signals serious power under the hood. Beyond the acoustics, the dual-pattern design (longer exhaust duration) helps scavenge the cylinders more effectively, which is critical for engines using high-performance exhaust headers and high-flow cylinder heads.

Superior Valvetrain Integrity To handle the high-rpm demands and aggressive ramp speeds of the XE284H, this kit includes Premium Redline High-Performance Lifters. These lifters are manufactured with advanced metallurgy to withstand the mechanical stress of high-lift lobes. Featuring precision-ground faces and specialized oiling ports, they ensure a constant film of lubrication between the cam and lifter—the most critical factor for a successful break-in and long-term durability in a high-output engine.

Manufacturer: COMP CAMS / ENGINETECH
Model: XTREME ENERGY 240/246
Included components: 1-CAMSHAFT 16-LIFTERS
Warranty: LIFETIME IF INSTALLED BY A CERTIFIED MACHINIST

Additional information

Brand

REDLINE ENGINE SUPPLY

Condition

New

Manufacturer

COMP CAMS / ENGINETECH

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COMP CAM 12-250-3 Xtreme Energy 240/246 XE284H Camshaft Kit & High-Performance Lifters | LIFT: .507"/.510" | FITS Chevy SBC 283 327 350 400 5.7 5.7L | Rough Idle | ++ HP & Torque
You're viewing: COMP CAM 12-250-3 Xtreme Energy 240/246 XE284H Camshaft Kit & High-Performance Lifters | LIFT: .507″/.510″ | FITS Chevy SBC 283 327 350 400 5.7 5.7L | Rough Idle | ++ HP & Torque $375.00
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