Replacing valve springs in Honda K Series engines doesn’t have to mean pulling the head. The HRB K Series In-Car Valve Spring Tool is purpose-built to let you service valve springs with the head still on the engine — saving time, reducing risk, and keeping your build moving forward.

Tested and refined in our professional engine building environment, this tool is precision-machined for strength, smooth operation, and ease of use in tight engine bays.

Key Features:

• Billet 6061 aluminium body for strength and lightweight handling
• Billet stainless steel retainer cup with large cutaway for improved access
• Bronze bush for smooth, precise spring compression
• ¼-inch drive threaded rod – can be used by hand or with a driver
• Captive design – tool remains assembled during use
• Anodised finish for corrosion resistance and long service life
• Supplied with bolts ready to install on K20 and K24 cylinder heads

Why Choose the HRB In-Car Valve Spring Tool?

This tool was engineered with real-world use in mind — to take the frustration out of valve spring jobs in K Series engines. Whether you’re upgrading springs in a boosted K24 build or refreshing a daily-driven K20, the HRB In-Car Valve Spring Tool lets you do the job right, without unnecessary disassembly.

Compatible with: All Honda K Series engines including K20A, K20Z, K24A, and K24Z variants. Perfect for performance upgrades, race prep, and general head servicing in professional workshops or DIY builds.

For tips and tricks for your K Series in car valve spring job check out this blog:

How to Remove Valve Springs Without Removing the Head (And Why We Built Better Tools for the Job)