Skunk2 Racing 305-05-5145 Pro 2+ Camshaft for B-Series VTEC Engines

✅ Engine Compatibility

Designed for Honda DOHC VTEC B-Series engines, including:

• B16A / B16A2

• B18C1 (GSR)

• B18C5 (Type R)

• B17A

Common applications include:

• Honda Civic

• Acura Integra

⚠ Not compatible with non-VTEC B-series engines.
⚠ Built for modified engines and requires supporting valvetrain upgrades.

Gain an extra 20-25 hp with Skunk2’s Pro 2+ Camshafts, our professional line of high-lift, racing camshafts for Honda’s B16/ B17/ B18 VTEC engines. Pro 2+ Camshafts are designed to optimize mid-range and top-end horsepower and torque, raising peak power 700 rpm higher than what OEM or Pro 1+ Camshafts allow for. As a result, VTEC crossover is seamless, allowing for the broadest powerband possible. No other line of racing camshafts even comes close to Skunk2’s Pro Series.

🔧 What the Skunk2 Pro 2+ B Series Camshaft Delivers

Compared to standard Stage-2 camshafts, the Pro 2+ offers:

• Higher valve lift

• Increased cam duration

• Improved cylinder head airflow

• Aggressive VTEC crossover characteristics

This cam is optimized for engines operating in the 8,000–8,800+ RPM range.

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.

🏁 Ideal Build Scenarios

The Pro 2+ camshaft is best suited for:

✔ High-compression naturally aspirated builds
✔ Street/strip B-series setups
✔ Track and road-race applications
✔ Fully built bottom-end engines

Many NA builds targeting 220–240+ horsepower rely on cam profiles like this to maximize airflow.

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.

⚙ Required Supporting Modifications

Installing aggressive cams without the proper hardware is how engines fail. For the Pro 2+, recommended upgrades include:

✔ Dual valve springs
✔ Upgraded retainers (steel or titanium)
✔ Adjustable cam gears
✔ High-compression pistons
✔ Ported cylinder head
✔ Performance intake manifold
✔ ECU tuning (Hondata, standalone, etc.)

These components ensure proper valve control and allow the camshaft to deliver its full performance potential.

Skunk2 camshafts designs are the direct result of our years of drag racing and road racing efforts. In addition to each Skunk2 project car and race vehicle, the world’s top road racing and drag racing teams have relied on Skunk2 camshafts for years.

CAM SPECS:

• Intake Duration / Lift: 260° / .12.65mm lift @ 0.000” lash
• Exhaust Duration / Lift: 272° / 11.90mm lift @ 0.000” lash
• 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

REQUIREMENTS:

• Adjustable Cam Gears
• Pro Series Valve Springs
• Titanium Retainers
• Lost Motion Assembly
• Cam Degreeing
• Valve to Valve Clearance Inspection
• Valve to Piston Clearance Inspection

🔩 Skunk2 Pro 2+ B Series Camshaft Installation Notes

For safe and effective installation:

• Degree camshafts precisely

• Verify piston-to-valve clearance

• Check installed spring height

• Confirm coil-bind clearance

• Perform ECU tuning immediately after installation

At high RPM, even small timing errors can lead to catastrophic engine damage.

RECOMMENDATIONS:

• High Compression
• Engine Management
• Deep Valve Pockets

NOTE: When using camshafts with greater than 12.6mm of lift, the following components must be used due to the stock lost motion assembly coil bind limits. Failure to do say may result in potential engine damage/ failure.

Skunk2 Pro Series Valve Springs (P/N 311-05-7350)
Skunk2 B-Series VTEC Lost Motion Assembly (P/N 312-05-0200)

Fitment:

• 1999 – 2000 Honda Civic (1.6L Si)
• 1994 – 1997 Honda Del Sol (1.6L VTEC)
• 1992 – 2001 Acura Integra (1.8L GS/GS-R/LS/Type R)

For mild to highly modified Honda B16/ B17/ B18 VTEC engines
Fast Ramp & AMAX Technologies
Up to 25 horsepower and 22 lb-ft torque gain
RPM Range: 1,500 – 9,400
Intake Duration / Lift: 260° / .12.65mm lift @ 0.000” lash / Exhaust Duration / Lift: 272° / 11.90mm lift @ 0.000” lash
Intake Centerline: 98° / Exhaust Centerline: 106°
Valve Clearance (Intake / Exhaust): .007” / .008”

Why Choose Skunk2 Pro 2+ B Series Camshaft ?

Skunk2 camshafts are widely used across the Honda performance community due to:

• Proven track and dyno performance

• Precision-machined cam profiles

• Compatibility with Skunk2 valvetrain systems

• Reliable high-RPM operation

For builders chasing maximum airflow and top-end horsepower, Skunk2 cams are among the most trusted upgrades available.