Skunk2 Pro Series Camshafts - B-Series Applications

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Skunk2’s Pro Series Camshafts for Honda’s B-series engines dramatically increase both horsepower and torque yet retain complete valvetrain stability and exceptional engine response. Ideal for heavily modified engines, Pro Series Camshafts are manufactured from proprietary, high-quality cores, are CNC ground, and feature patent-pending profiles with unique lobe shapes and revolutionary lift, velocity, and acceleration characteristics.

Skunk2 camshafts deliver unparalleled power as a result of continual, extensive development and testing. By utilizing advanced manufacturing techniques and the latest computerized simulation and modeling equipment, Skunk2 camshafts are able to deliver maximum power across the entire powerband. Skunk2 designs and tests all of its camshafts in-house to ensure the highest quality and performance. Each camshaft is manufactured of newly revised chill-cast, billet camshaft blanks that have increased torsional strength, improved durability characteristics, and reduced frictional effects. All Skunk2 camshafts are ground to exact specifications using state-of-the-art CNC cam grinding machines equipped with cubic-boron grinding wheels and feature hardened, wear-resistant lobes and surfaces.

Skunk2’s Pro Series Camshafts also feature Fast Ramp and AMAX profile technology, which increases overall performance and results in unmatched response from idle to redline. AMAX technology simply maximizes the area under the lift curve but without compromising reliability or valvetrain stability. Skunk2’s profiles feature more duration than competitors’ at lifts above 1mm, resulting in greater efficiency and more power. And thanks to Fast Ramp, the same technology used in Formula One racing, seat timing is reduced, which results in additional cylinder pressure and more torque but without compromising valvetrain longevity.


The Skunk2 Lost Motion Assembly is an advance spring device that is designed to put pre-load on the center portion of the VTEC rocker when it is in the unlocked position (when VTEC mode is disabled). During extended operating conditions, the contaminants in the oil will more than likely cause the piston to seize resulting in the VTEC rocker rattling when VTEC is not engaging or when the vehicle is in idle. The Lost Motion assembly is required for a proper installation of any Skunk2 Pro Series Camshaft set

Compatible with B18C1, B18C5, B17A1, B16A2, and B16A3 applications

Pro 1+ Specs

Required: Pro Series Valve Springs, Titanium Retainers, Lost Motion Assembly.
Recommended: High-compression, Engine Management.
Intake Duration / Lift: 258° / 12.65mm
Exhaust Duration / Lift: 260° / 11.90mm
Intake Centerline: 98°
Exhaust Centerline: 105°
Valve Clearance (Intake / Exhaust): .007” / .008”
RPM Range: 1,500 - 9,000 rpm
HP Gains: 15 - 20 hp
Torque Gains: 18 - 22 lb-ft

Pro 2+ Specs

Required: Pro Series Valve Springs, Titanium Retainers, Lost Motion Assembly.
Recommended: High-compression, Engine Management, deep valve pockets.
Intake Duration / Lift: 260° / 12.65mm
Exhaust Duration / Lift: 272° / 11.90mm
Intake Centerline: 98°
Exhaust Centerline: 106°
Valve Clearance (Intake / Exhaust): .007” / .008”
RPM Range: 1,500 - 9,400 rpm
HP Gains: 20 - 25 hp
Torque Gains: 18 - 22 lb-ft

Pro 3+ Specs

Required: Pro Series Valve Springs, Titanium Retainers, Lost Motion Assembly.
Recommended: High-compression, Engine Management, deep valve pockets.
Intake Duration / Lift: 272° / 12.70mm
Exhaust Duration / Lift: 277° / 11.93mm
Intake Centerline: 100°
Exhaust Centerline: 104°
Valve Clearance (Intake / Exhaust): .007” / .008”
RPM Range: 1,500 - 9,800 rpm
HP Gains: 25+ hp
Torque Gains: 18 - 22 lb-ft



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