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Description
Skunk2 Ultra Series Camshafts - K-seriesSkunk2s Ultra Series Camshafts for Hondas K series engines dramatically increase both horsepower and torque yet retain complete valvetrain stability and exceptional engine response. Ideal for heavily modified engines, Ultra Series Camshafts are manufactured from proprietary, high quality forged tool steel cores, are CNC ground, and feature patent pending profiles with unique lobe shapes and revolutionary lift, velocity, and acceleration
Skunk2’s Ultra Series Camshafts for Honda’s K-series engines dramatically increase both horsepower and torque yet retain complete valvetrain stability and exceptional engine response. Ideal for heavily modified engines, Ultra Series Camshafts are manufactured from proprietary, high-quality forged tool steel cores, are CNC ground, and feature patent-pending profiles with unique lobe shapes and revolutionary lift, velocity, and acceleration characteristics.Up to 80 hp gains with Skunk2’s Ultra Series line of camshafts, Skunk's professional line of high-lift, racing camshafts for Honda’s K-series VTEC engines. Ultra Camshafts are designed to optimize mid-range and top-end horsepower and torque, with peak power moved up the RPM band. 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 Ultra Series. What's more, Ultra Camshafts are also the perfect addition to any high-output, turbocharged engine.
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 forged tool steel core, 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 Ultra 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.
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.
Requirements for all Ultra 1/2/3/4 Camshafts
- Skunk2 Pro Series Valve Springs (P/N 311-05-5380)
Or - Pro XP Valve springs (P/N 311-05-7380) recommended for Turbo applications
- Titanium Retainers (P/N 308-05-0410)
- Click HERE for K-series guideline camshaft chart
Ultra 1 Details
- Recommended: High-compression, upgraded fuel injectors.
- Intake Centerline: variable
- Exhaust Centerline: 112° BTDC
- Duration(Intake/Exhaust): 264°/264° @ 1mm
- Lift (Intake/Exhaust) : .540" @ 0.000" lash / .530" @ 0.000" lash
- Valve Clearance (Intake / Exhaust): .008” / .010”
- RPM Range: (varies)
- ** 3 Lobe Forged Tool Steel Core *
Ultra 2 Details
- Recommended: High-compression, upgraded fuel injectors.
- Intake Centerline: variable
- Exhaust Centerline: 112° BTDC
- Duration (Intake/Exhaust): 270°/270° @ 1mm
- Lift (Intake/Exhaust): .560" @ 0.000" lash/ .535" @ 0.000" lash
- Valve Clearance (Intake / Exhaust): .008” / .010”
- RPM Range: (varies)
- ** 3 Lobe Forged Tool Steel Core **
Ultra 3 Details
- Recommended: High-compression, upgraded fuel injectors.
- Intake Centerline: variable
- Exhaust Centerline: 112° BTDC
- Duration (Intake/Exhaust): 275°/277° @ 1mm
- Lift (Intake/Exhaust): .580" @ 0.000" lash/ .565 @ 0.000" lash
- Valve Clearance (Intake / Exhaust): .008” / .010”
- RPM Range: (varies)
- ** 3 Lobe Forged Tool Steel Core **
Ultra 4 Details
- Recommended: High-compression, upgraded fuel injectors.
- Intake Centerline: variable
- Exhaust Centerline: 112° BTDC
- Duration (Intake/Exhaust): 280°/283° @ 1mm
- Lift (Intake/Exhaust): .575" @ 0.000" lash/ .595" @ 0.000" lash
- Valve Clearance (Intake / Exhaust): .008” / .010”
- RPM Range: (varies)
- ** 3 Lobe Forged Tool Steel Core **
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 1
Leather peels right off
Size: 8, Color: Black
Very poor quality - shoes are ruined after a couple months
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Reviewed in the United States on May 28, 2026
★★★★★ 5
No Bending Required, No Hands Needed
Size: 12 Wide, Color: Cognac Napa Leather
The shoe is a good fit and run true to size, and color and quality are as advertised. Easy to slip on and off, without bending to do it.
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Reviewed in the United States on June 11, 2026
★★★★★ 5
Nice
Size: 9, Color: Black
Very comfortable. Worth the money
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Reviewed in the United States on June 1, 2026
★★★★★ 5
Good purchase
Size: 9.5, Color: Black
Value and quality was good
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Reviewed in the United States on May 16, 2026
★★★★★ 5
The "Lazy Professional" Look: Is Hands-Free Luxury Actually Real?
Size: 9.5, Color: Black Napa Leather
Living down here in Florida, my footwear needs are pretty specific. It’s hot, it’s humid, and I spent half my life rushing from the car into work or a meeting. I’ve reached that age where I value efficiency just as much as style—maybe more. I’ve been eyeing the Marc Joseph New York Hands-Free Slip-on Penny Loafers for a while, and after putting them through the wringer, here is the honest truth from someone who just wants to look sharp without the hassle.
The "Just Step-In" Reality
Look, the big selling point here is the "Hands-Free" tech. We’ve all seen the commercials for those athletic slip-ins, but finding that in a legitimate leather penny loafer is a different game. Does it work? Yes, surprisingly well. The heel counter is firm enough that it doesn’t collapse when you slide your foot in, but it doesn’t feel like a piece of plastic digging into your Achilles once you’re in. For those of us who are tired of bending over or hunting for a shoehorn every morning, this is a genuine quality-of-life upgrade.
The Florida Factor: Comfort and Style
The leather is actual calfskin (on most models), which is a must for the Florida heat. Synthetic shoes turn into a sauna within ten minutes, but these breathe reasonably well. The aesthetic is classic—it’s a "professor" shoe through and through. You can wear them with chinos and a blazer for work or throw them on with some nice jeans for a weekend lunch.
Inside, they’ve got a gel heel insert and a padded footbed. It’s not quite "walking on a cloud"—let’s not over-hype it—but it’s a massive step up from the hard, flat soles of traditional dress loafers. I’ve spent four hours on my feet lecturing, and my arches didn’t hate me by the end of the day.
The Sizing Gamble
Here’s where you need to be careful. The consensus from other guys (and my own experience) is that the sizing is a bit of a coin toss. They tend to run a little large and sometimes wide. If you have narrow feet, you might find the sides "gaping" or flaring out when you walk, which kills the sleek look. I’d recommend ordering a half-size down if you’re usually between sizes.
The Breakdown
The Pros:
True Hands-Free: You can actually put these on while holding a coffee and a briefcase. No hands needed.
Legit Materials: The calf leather feels premium and smells like the real deal.
Versatility: Perfectly bridges the gap between a "car shoe" and a formal loafer.
Comfort: The gel insert makes a noticeable difference for long-duration wear.
The Cons:
Sizing Inconsistency: They can run wide, leading to some "heel slip" if you don't get the perfect fit.
Break-in Period: The heel is stiff by design (to allow for the slip-on feature), so expect a day or two of minor stiffness.
Price Point: They aren't cheap, though often on sale.
Value for Money
Are they worth it? If you’re comparing them to high-end Italian brands that cost $500, these are an absolute steal. They look 90% as good for a fraction of the price. However, if you're used to $60 mall shoes, the jump to $150+ might feel steep until you realize you’re paying for the convenience of never having to touch your shoes to put them on. For a daily driver in a professional setting, the value is definitely there.
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Reviewed in the United States on April 10, 2026