This is not compatible with B-Series NON-VTEC engines. No shims required.
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) and are compatible with all camshafts.

This is a very popular part for B-Series VTEC engines that puts preload on the center portion of the vtec rocker. Its a good idea to purchase and install these at the same time as valve springs and retainers.

Note: This is not compatible with B-Series NON-VTEC engines. No shims required.

Part Number Fits:
Acura B17A1
Acura B18A1, B1, C1, C5
Honda B16A2, A3
Honda B20B, Z

Note:

This is not compatible with B-Series NON-VTEC engines. No shims required.

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.

WE CAN ONLY SHIP TO THE ADDRESS ENTERED DURING CHECKOUT.
Most domestic orders ship within 5 days, please allow up to 7-10 days for international orders to ship.
We are very familiar with International Export procedures and we ship out of the country every day. If you are a customer outside of the United States of America, have no worries, we will get your parts to you quickly and correctly, many times just as quickly as our domestic shipments.

Some shipping destinations will require additional shipping, these customers will be contacted immediately after placing their order. Feel free to contact us before placing your purchase for an exact shipping quote.

Import Duties, Taxes, and Charges are not included in the item price or shipping cost. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying.

Quoted shipping does not include insurance. If you would like to add insurance to your contact us here to go over the options.

Please note that eBay requires all orders $750.00 and above to have Signature confirmation, so if your package total is $750.00 or more, your shipment will require a signature.

Even though we are based in Florida, not all orders ship complete from our Florida location. Please be aware that some parts will ship directly from other states to your location. Please message us before clicking buy-now to check location availability if this is a concern of yours.

PLEASE NOTE, ORDERS TO THE FOLLOWING COUNTRIES WILL BE SHIPPED VIA USPS INTERNATIONAL TO AVOID DELAYS AND COMPLICATIONS, UNLESS SPECIFICALLY REQUESTED BY THE BUYER TO SHIP VIA UPS:

- Russia
- Brazil
- Greece