SKU: 30438899382

Skunk2 Racing Lost Motion Assembly Spring Kit - B VTEC 312-05-0200

Sale price$135.90 Regular price$151.00
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Ships within 48 hours · Estimated delivery Aug 1 - Aug 6

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Description

Skunk2 Racing Lost Motion Assembly Spring Kit - B VTEC 312-05-0200Skunk2 is proud to introduce its Lost Motion Assembly Spring Kits for the Honda B16A B, B17A, B18C VTEC engines or B Series engines using the VTEC cylinder head. The Skunk2 Lost Motion Assembly is an advanced spring device that is designed to put pre load on the center portion of the VTEC rocker when it is in the unlocked position (VTEC is disengaged). Once RPM range that VTEC engages, the Lost Motion Assembly (LMA) will compress just like the valve

Skunk2 is proud to introduce its Lost Motion Assembly Spring Kits for the Honda B16A/B, B17A, B18C VTEC engines or B Series engines using the VTEC cylinder head.

The Skunk2 Lost Motion Assembly is an advanced spring device that is designed to put pre-load on the center portion of the VTEC rocker when it is in the unlocked position (VTEC is disengaged). Once RPM range that VTEC engages, the Lost Motion Assembly (LMA) will compress just like the valve springs and similarly to valve springs... LMA's will over time loose their ability to function properly, become contaminated, and/ or not be able to accommodate the camshafts lift and will need to be replaced.

 

Skunk2's Lost Motion Assembly Springs are manufactured exclusively from chrome silicone steel using the latest 3D CAD (Computer Aided Design) modeling and FEA (Finite Element Analysis) to ensure maximum optimization. The Skunk2 Lost Motion Assembly Kit replaces the factory piston-style LMA design with an improved design commonly found in newer generation Honda engines and incorporate a hardened tip for added durability.

 

Skunk2 recommends replacing the LMA's when installing aftermarket camshafts as a preventive maintenance measure but requires replacement when installing Skunk2 Pro and Ultra Series camshafts or any camshafts with a lift greater than 12.5mm.

Shipping Notes
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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]
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SKU: 30438899382

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4.6 ★★★★★
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J. F. Aviles Sr.
Carnegie, US
★★★★★ 5
Good Relay
Works very well
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Reviewed in the United States on August 27, 2024
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Verified Purchase
Pete l.
San Leandro, US
★★★★★ 3
Functional. Be careful when tightening nuts...strips very easy
Quality is questionable. The poles will strip way to easy. So be careful when fighting down. I had to use a stack of washers on top of wire to keep the nut tight. As far as functionality goes ..been doing great for over a month.
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Reviewed in the United States on March 6, 2025
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Parish L. Wilson
Waukegan, US
★★★★★ 5
Well needed
Great for the price
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Reviewed in the United States on January 28, 2026
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Gordon
Pawtucket, US
★★★★★ 4
Happy happy
Not bad kind of pricey that's all definitely would buy from them again
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Reviewed in the United States on February 4, 2026
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Verified Purchase
Adrian Galindo
Belleville, US
★★★★★ 5
Hooked up 2 car amps. Works Great!!
Ordered up 2 of those under the car seat woofers with the built in amps. Installed this power distribution bus bar system, ran both amps through it and it works great. Super easy to install, holds up very well so far with solid connections, fits almost anywhere it’s not big, makes it easy to clean up the wires and make them look nice and neat, and it’s well worth the cost. Just remember if you do decide to hook up multiple amps or even just one that you are using the right size gauge wire, fuses, and the right terminals if needed. I saw that somebody melted theirs and I’m guessing it was not a clean install and probably had it fused and wired incorrectly. Overall super happy with the product, well worth the price, very durable, and I highly recommend it.
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Reviewed in the United States on February 14, 2026

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