1734

Valve springs with aluminium retainers and clamps
full set 8 pieces

1735

Valve spring, standard
each

1735-250

Valve spring 25/30hp

1735-500

Valve spring, each

1739

Valve lash caps
by 8 pieces

1765

Aluminium valve cover with screws, mounting kit and rubbers, as pair

1766

Mounting kit to replace valve cover with screws

1767

Aluminium valve cover with clips and rubbers, as pair

1768

Chrome stock style valve cover with clips, as pair

1768-1

Valve cover clip Type1 engine / Black

1769

Ventilation ports

1770-01

Valve cover seals Type1 engine (top quality)

1770-1

Valve cover
each, superior quality

1720

Cylinder head 1600cc bare Ø94mm

1720-01

Cylinder head bare Ø98mm

1720-02

Cylinder head bare Ø101mm

1721

Cylinder head 1600cc, Ø94mm
with valves

1721-4

Cylinder head 1600cc single port Ø94mm - NOS

1730

Single valve springs (30% stronger than stock style)
8 pieces

1731

Dual valve springs
8 pieces

1731-1

Extra strong dual valve springs
8 pieces

1793

Piston buttons Teflon, 85.5mm

1794

Piston buttons Teflon, 90.5mm

1795

Piston buttons Teflon, 92mm