SKU: FERKT4001
MPN: KT4001
The Endurance Dual Spring Kit for Honda and Acura 1.6/1.8 engines is engineered for builders and enthusiasts who demand precision valve train control in high-performance and modified applications. This dual spring assembly replaces the factory single-spring setup, delivering the consistency needed for aggressive cam profiles, higher RPM limits, and forced induction builds. Whether you're upgrading your Honda engine for street performance or track duty, this kit addresses the fundamental weak point in stock valve train architecture—inadequate spring pressure at elevated engine speeds.
FERREA's dual spring design uses precisely matched inner and outer springs to maintain consistent valve seating force throughout the RPM range, preventing valve float and spring surge that plague single-spring systems under boost or with wild cam timing. The dual-spring geometry also reduces harmonics and extends valve life by distributing load more evenly across the valve seat and retainer. This kit is compatible with stock or aftermarket rocker arms and pushrods, making it ideal for both naturally aspirated and boosted applications.
Engine builders will find this kit beneficial for Honda and Acura 1.6L and 1.8L engines destined for extended RPM operation or turbo applications. The compact package contains everything needed for a complete valve spring replacement on your engine's cylinder head. Upgrade your valve train with this reliable solution to enhance performance and durability.
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