312-05-0200 Lost Motion Assembly Replacement for Honda B-Series 4-Cylinder Engines B16A B17A B18C B16A2 B16A3 B17A1 B18C1 B18C5 Type-R/GSR (Pack of 8)

312-05-0200 empty stroke assembly consists of 8 springs and is easy to install, the assembly is made of chrome silicon steel, increase durability

• Replacement Part:Replacement for Honda B and H Series VTEC engines original lost motion assembly. No additional modifications are needed for easy installation, and it matches the original factory assembly specifications, eliminating the trouble of adaptation and adjustment.
• Extended Travel Spring Configuration:The spring is specially designed with extended travel, which can be compatible with high-lift VTEC camshafts. It effectively avoids the binding issue of original lost motion assembly when using high-lift camshafts, ensuring the stable operation of the valve mechanism.
• Compatible with All High-Lift VTEC Camshafts：it is especially recommended for camshafts with lift above 12.5 mm. It solves the wear problem of camshafts caused by insufficient lift of original lost motion assembly.
• Hardened Tips for Enhanced Durability：The tips of the assembly adopt a hardening process, which greatly improves wear resistance and fatigue resistance. They can withstand the impact and friction under high-intensity operation, significantly enhancing the durability of the assembly.
• Core Function:On one hand, it keeps the center rocker in the correct position when it is not engaged. On the other hand, it provides additional spring force to control the added weight of the rocker assembly when the rocker is engaged, maintaining the accuracy and stability of valve movement.