CST2003 – Cylinder head, full race large-bore
Price - £1095.00 + VAT.
Surcharge for casting if not supplied - £180.00 + VAT. We now urge all UK based customers to try and source/supply their own castings as buying used core in reasonable quantities is becoming very rare.
Full spec cylinder head -
Inlet valves: 35.6/36.6mm, single groove collet EN214N plasma-nitrided
Exhaust valves: 29.5mm, single groove collet EN214N plasma-nitrided
Guides: Manganese bronze
Stem seals: Sprung type on inlets only
Valve springs: 280lb nominal dual coil
Top caps: Steel, machined from stock bar
Collets: Standard single groove
Chamber capacity: tailored to suit application.
Constant research and development over the decades using a flow bench for initial investigations, then thoroughly tested on engines on engine dynos, rolling roads, and ultimately the race track has culminated in the current race head specification. Instantly recognisable from many other race head types by the distinctive port shapes and sizes. Particularly the valve sizes used and the exhaust ports.
Fitted with top quality unleaded fuel compatible exhaust valve seat inserts.
All heads are done to order to cater for specific applications and requirements, hence the valve size option. The larger valve size may also be fitted if the head casting being used has particulary damaged inlet valve seats.