Bourne HPP Honda K20 2.0L Track Day/Rally Engine

Clubman Spec: The Next Step in Performance

Bourne HPP’s Honda K20 Clubman build is the perfect solution for track day enthusiasts and entry-level clubman racers looking to elevate their engine's performance. This build goes "one step further" than a standard refresh, integrating a range of custom Bourne HPP components designed to bridge the gap between a fast road car and a dedicated competitive racer.

The Bourne HPP Standard

Every engine build starts with a meticulous preparation process. Every component and bolt is either brand new or completely refurbished to ensure mechanical integrity and a show-quality finish:

• Complete Strip & Inspection: Every internal part is measured and verified against factory tolerances.

• Vapour Blasted Castings: Exterior engine castings are restored to a factory finish.

• Precision Machining:

  • Dynamic Crankshaft Balancing for high-RPM smoothness.

  • Cylinder Bores Honed to exact tolerances for optimal ring seal.

  • Block and Head Faces Skimmed to ensure perfect gasket mating.

  • Full Casting Deburring to improve oil return and eliminate stress risers.

• Cylinder Head Refurbishment: Valve guides replaced, with valve seats precision cut and lapped.

• Aesthetics: Finished with the signature Bourne HPP Blue Cam Cover

High-Performance Engine Upgrades

The Clubman spec features targeted upgrades to improve thermal management and valvetrain stability:

Bottom End

• Pistons: Ceramic coated crowns for superior thermal protection and heat reflection.

• Oiling: Integrated Anti-Surge Baffle to prevent oil starvation during high-G cornering.

• Fasteners: ARP Head Studs  for increased clamping force and head gasket reliability.

Cylinder Head & Valvetrain

• Camshafts: Bourne HPP 21S Drop-In Camshafts

• Valves: Bourne HPP high-performance Inlet & Exhaust Valves

• Springs: Bourne HPP Upgraded Valve Springs

• Hardware: Bourne HPP specialized Inlet and Exhaust studs

Technical Specifications

Note: Any components or procedures not required for your specific build requirements will be reimbursed. We pride ourselves on flexibility; please contact us directly for bespoke engine assemblies tailored to your specific regulations or budget.