Skunk2 B Series Spring Type Lost Motion Assembly Kit Honda/Acura VTEC | 312-05-0200

SKU: skk312-05-0200
Availability: 6 In Stock Learn more
Type: Engine Valve Springs and Retainers
Regular price
Regular price
Sale price
Instant Discount

Regular Price: $99.74 - Instant discount: $4.75 = $94.99

Spend $350 or more and select an item for just $3!

Explore the deals page for more information.

Subtotal: $94.99

Delivery Options:

  • Economy $11.95
  • 2 Business Day
  • Next Business Day
Fastrak Delivery: , Order within hours minutes


For your

  • 1999 - 2000 Honda Civic Si (1.6L VTEC)
  • 1994 - 1997 Honda Del Sol (1.6L VTEC)
  • 1990 - 2001 Acura Integra (1.8L VTEC)


  • Manufactured from Chrome Silicon Steel
  • Replaces factory piston-style assembly
  • Allows more LMA compression before bind
  • Needed for camshafts with lift above 12.5mm
  • Hardened tips for longevity and durability
  • Fits all B-series VTEC cylinder heads

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.

Each Skunk2 Lost Motion Assembly is manufactured exclusively from chrome silicone steel using the latest 3D CAD (Computer Aided Design) modeling and FEA (Finite Element Analysis) to ensure maximum optimization. Each chrome silicone steel spring features a hardened tip for added durability. Skunk2 engineers then tested and proved their design on the engine dyno as well as the race track.

The Skunk2 Lost Motion Assembly Kit replaces the factory piston-style LMA design with an improved design commonly found in newer generation Honda engines. Replacing LMA's are recommended when installing high-performance camshafts, and required when installing Skunk2 Pro Series and other high-lift camshafts.

Each Lost Motion Assembly Kit includes a set of 8 assemblies for an entire Honda DOHC VTEC B- Series 4-cylinder engine (Type-R/GSR, B16A, B17A, B18C).

- Equivalent to Genuine Honda P/N 14820-PCB-003 or Honda P/N 14820-PCB-305

- Does not require use of shims like other lost motion assembly kits Note: If this product is drop shipping from Skunk2 directly, it takes 3 business days to process the order prior to shipping.