Cylinder Head – Honda CR250R (2002‑2004)

The VHM AA33042 cylinder head is engineered for the Honda CR250R from 2002 to 2004. Crafted from a premium alloy, this “gold” VHM head features enhanced water‑ducting and uses O‑ring sealing for improved reliability under racing conditions. One of its standout features is the exchangeable combustion chamber insert system, which allows engine builders to fine‑tune combustion volume and compression ratio by changing inserts—ideal for adapting to different fuels and track conditions. The head comes complete with one O‑ring, six copper washers and six nutcaps. It must be used in conjunction with the VHM standard insert AE32060‑K to complete the head system. The result is higher engine power, better heat transference and greater resistance to detonation, making it an excellent choice for serious motocross or performance builds.

Key Features / Benefits:

• Precision‑machined cylinder head body designed for optimal performance on Honda CR250R (2002‑2004).

• Exchangeable combustion chamber system enables tuning flexibility and adaptation to varying engine setups.

• Enhanced water‑duct design and high‑quality alloy improve cooling and durability under demanding conditions.

• O‑ring sealing and included washers and nutcaps ensure reliable assembly and longevity.

• Ideal for rebuilds, race tuning or high‑performance engine applications.

Technical Specifications / Specifications:

• Part Number: AA33042

• Application: Cylinder Head for Honda CR250R (2002‑2004)

• Compatible Insert: VHM standard insert AE32060‑K

• Features: Exchangeable combustion chamber inserts, improved water duct, O‑ring sealing

• Includes: 1 × O‑ring, 6 × copper washers, 6 × nutcaps

• Benefits: Increased engine power output, improved heat transference, enhanced detonation resistance