BCR Performance

🔧 Yamaha R6 BN6 Cylinder Head Repair 🔧

Another R6 cylinder head through the workshop for specialist repair and machining.

We carry out all cylinder head work in-house, from standard repairs through to full race heads.

⚙️ Valve seat cutting & replacement
⚙️ Valve guide replacement
⚙️ Cylinder head skimming
⚙️ Cam journal repairs
⚙️ Porting & gas flowing
⚙️ Combustion chamber repairs
⚙️ Race cylinder head preparation

🏁 Road Race • Motocross • Performance Engines

Cylinder head work can be sent to us from anywhere in the UK via our postal service.

📞 0151 662 0752
📧 [email protected]
🌐 www.bencoyleracing.co.uk

Yamaha R6 BN6 Cylinder Head Skim

📞 0151 662 0752
📧 [email protected]


🏁 YZF450 STAGE 2 RACE HEAD 🏁

Full Stage 2 cylinder head preparation, with all machining and development carried out in-house at BCR Performance.

⚙️ Trojan performance valve seats
🔧 Fully ported intake & exhaust ports
🏁 Filled & reshaped intake ports for improved port geometry and gas speed
⚙️ Multi-angle performance valve seat profiles
🔬 Valve seat concentricity & sealing checked in-house

From seat and guide work through to port development and final machining — everything is completed in-house.

📞 0151 662 0752
📧 [email protected]
🌐 www.bencoyleracing.co.uk

One very warped CCM head!

Another motorcycle head skimmed in-house at BCR Performance.

🏁 Motocross & Road Race Cylinder Head Specialists
📦 UK postal service available

📞 0151 662 0752
📧 [email protected]
🌐 Www.bencoyleracing.co.uk

Suzuki Hayabusa Cylinder Head Skim

📞 0151 662 0752
📧 [email protected]
💻 www.bencoyleracing.co.uk

Kawasaki KXF250 Engine Strip - Rod Bearing Failure

🔧 Brand new 2026 Kawasaki KX250 cylinder head fitted with our copper valve seats and ready for action. 🏁

At BCR Performance, we specialise in 4-stroke cylinder heads for motocross and road racing.

✔️ Valve Seat Replacements
✔️ Valve Guide Replacements
✔️ Copper Valve Seats
✔️ Race Heads
✔️ Porting & Gas Flowing
✔️ Combustion Chamber Repairs

📞 0151 662 0752
📧 [email protected]
🌐 www.bencoyleracing.co.uk

CB500 Bolt on kit