GX390 Full race ported & polished cylinder head, milled .100''. The head has a custom valve job and includes lightweight, high flow stainless steel valves, 50Lb valve springs and an aluminium retainer & Split keeper set.
GXTuningStoreUK Friends Green Farm, Weston, Hitchin, Hertfordshire, SG4 7BU, United Kingdom,
Email: GX200TuningStoreUK@hotmail.co.uk Tel: +44 7583153931
