Valve spring outer HRC

Valve spring inner OEM

Valve spring inner New type C90

Valve retainer old style head 5.5mm valve

Valve retainer for 5mm valves. Also for the aftermarket engines with the 5mm valve stem.

Washer for old style valve cap

Valve cotter for all old style 5.5mm valves

M6 washer for cilinder head etc..

Valve cap original

Oil pressure plate for on the camshaft , old style 6volt engines only.This plate keeps the oil pressure in the cilinder head higher than stock for longer valvetrain life.