SKU: 67359242495

Skunk2 Alpha Valve Spring & Titanium Retainer Kit - B/D/H/K-series

Sale price$152.55 Regular price$169.50
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Ships within 48 hours · Estimated delivery Aug 16 - Aug 21

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Description

Skunk2 Alpha Valve Spring & Titanium Retainer Kit - B/D/H/K-seriesSkunk2 is proud to introduce its Alpha Valve Spring and Titanium Retainer Kits for Hondas B series VTEC, D series VTEC, H series VTEC, and K series iVTEC engines. Each kit includes Skunk2s high quality dual valve springs (single for D series) and race proven titanium retainers that are the result of nearly two decades of racing and engine building experience. Each Alpha Valve Spring is manufactured exclusively from super clean, chrome silicone wire

Skunk2 is proud to introduce its Alpha Valve Spring and Titanium Retainer Kits for Honda’s B-series VTEC, D-series VTEC, H-series VTEC, and K-series iVTEC engines. Each kit includes Skunk2’s high-quality dual valve springs (single for D-series) and race-proven titanium retainers that are the result of nearly two decades of racing and engine building experience.

Each Alpha Valve Spring is manufactured exclusively from super-clean, chrome-silicone wire milled in Japan. By using inner and outer springs mated together through a slight interference fit and with differing frequencies, Alpha Valve Springs are able to prevent valve float and maintain valvetrain stability at engine speeds in excess of 10,000 rpm.

Skunk2’s industry-leading Alpha Titanium Retainers are designed to significantly reduce valvetrain mass, resulting in more horsepower and improved valvetrain stability. Similar to Skunk2’s already popular Pro Series Titanium Retainers, Alpha Titanium Retainers feature radius-cut edges for additional rocker arm clearance and reduced weight, strategically positioned lightening grooves, and reduced overall heights for better valve seal clearance and even further weight reduction.

Alpha Titanium Retainers are manufactured using the latest 3D CAD (Computer Aided Design) and FEA (Finite Element Analysis) to ensure that each is optimized for strength as well as for reduced weight. Skunk2 engineers then test and prove their designs on the engine dyno as well as the race track. Once approved for manufacturing, only medical-grade titanium that’s been ultrasonically inspected and certified is used. Following CNC machining, each retainer is then individually inspected to ensure proper hole diameter, taper, and that each are free from machining defects to ensure proper installed valve spring heights and pressures. Finally, each retainer is serialized for your protection, including valuable information, like material batch specifics as well as production and inspection dates.

Skunk2 designs, develops, and tests its entire valvetrain lineup in-house to ensure superior quality and maximum performance gains. During development, each valvetrain component is tested both on the dyno and the road, including 11,000 rpm drag racing engines and 17,000 rpm superbikes. Manufactured from the best materials available, Skunk2 valvetrain components provide exceptional performance, reliability, and quality and remain standard-issue on each Skunk2 vehicle that we build and support

Engine Applications:

  • D-series* VTEC - D16Z6 (Si/EX), D15B (JDM), D16Y5 (HX), D16Y8 (EX)
    *single springs
    Seat pressure: 165lbs @ 1.500" / Pressure: 585
  • B-series VTEC - B16A/B, B17A, B18C/C1/C5
    Seat Pressure: 68lbs @ 1.320”
  • H-series VTEC - H22A1/A4 & JDM H22/H23 VTEC
    Seat Pressure:Seat Pressure: 50lbs @ 1.400” -- Open Pressure: 205lbs @ 0.900” / Coil bind: 0.880"
  • K-series* - K20A/A2/A3/Z1/Z3, K24A2
    Seat Pressure: 60lbs @ 1.600”

*K-series Alpha Spring Info:

Seat Pressure: 60 lbs at 1.600”
Open Pressure: 220 lbs at 1.100”
Coil Bind: 1.000”

K-series engines that are originally equipped with single valve springs must use a K-series dual valve spring base kit (available separately) and cotters (keepers) from pre-2004 K20A2 engines.

When using Skunk2 Titanium Retainers on 2004 and newer K engines, pre-2004 keepers (cotters) must be used (Honda P/N 14781-PR7-A01). Pre-2004 keepers can be identified by the absence of marks along the top edge (2004 and newer keepers feature laser-etched marks along the top edge). For applications where 2004 and newer keepers are used, Skunk2 Titanium Retainers must be used. Proper retainer/keeper selection is important due to varying angle ratios between earlier and later keeper designs. Use of improper retainers and/or keepers may result in potential engine damage.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 67359242495

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Amanda Sammon
Fort Morgan, US
★★★★★ 5
Great Suit
Size: Small, Color: Light Grey
Was a little tight in the shoulders but otherwise fit great and looks good.
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Reviewed in the United States on April 30, 2026
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Valentin Zahrebelnyj
Dallas, US
★★★★★ 4
Fabrics Great, Size a little Big, Overall Pretty Good
Size: Medium, Color: Dark Navy
This suit was truly great, the size for the pants and the vest were pretty on point, maybe a little long for the pants. The jacket was way too big though compared to the rest. Overall pretty good suit for the price, very surprised at the build quality and faabrics.
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Reviewed in the United States on April 30, 2026
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E. Perry
Phoenix, US
★★★★★ 5
Bargain Price, but GREAT!!
Color: Black, Size: Large, Color: Black, Size: Large
Bargain price ....but, it looks great, fits very well, very comfortable and received many compliments! Was shocked that a ~$75 tuxedo was this great. The pants had substantial adjustment in the waist so they fit really well. The length was spot on. I'm 5'11 and 165 pounds and the large was a great fit for me. Highly recommend for anyone needing a tuxedo! The pants do not have a stripe on the side, if that's important to you, it wasn't to me.
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Reviewed in the United States on May 23, 2026
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Shani G.
Natrona Heights, US
★★★★★ 5
Fit and quality
Color: Navy Blue, Size: Small
Very nice suits. Good quality and size is pretty spot on as long as you take measurements. I have bought this brand in two different colors for my son's high-school proms. Both suits held up well and were a good fit. He is tall and skinny. 6 ft and 135 lbs. Wears a 28/34 jeans lol. The small pants fit better for his waist and small jacket fit but he preffered the little closer fit of the medium size jacket. Overall very happy with purchase and would recommend for anyone looking for a cheap suit for a wedding or prom. Its affordable and they have many color options.
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Reviewed in the United States on May 8, 2026
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Trivia
Lake Worth, US
★★★★★ 5
Profesionally Fit and Tailored outfit
Color: Black, Size: Large
Pretty professional and great outlook wearing it with a tie. Can be used in any environment but not in a warmth area with a Jacket. Feels pretty comfortable. Material was great indeed and pretty silky from the inside.
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Reviewed in the United States on May 26, 2026

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