Our sodium-filled
exhaust valve is used as original equipment on the following vehicle
models:
Porsche 912 1.6 L (1966-1969)
This sodium-filled exhaust valve can also be used as
an option on the following vehicles
as an alternative to the exhaust valves reference 356.010090E with solid steel stems:
Porsche 356 C (1964-1965) *
Porsche 356 SC (1964-1965) **
Notes:
* Includes the following vehicles:
Year
Model
Engine Type
Engine Number
Displacement
Power
1964-1965
356
C Coupé / Cabrio
616/15
1600
M 710001 to end
of production
1600 cc.
55
kw / 75 HP.
1964
356
C Coupé Karmann
616/15
1600
M 730001 à M 733027
1600 cc.
55
kw / 75 HP.
1965
356
C Coupé / Cabrio
616/15
1600
M 733028 to end
of production
1600 cc.
55
kw / 75 HP.
** Includes the
following vehicles:
Year
Model
Engine Type
Engine Number
Displacement
Power
1964-1965
356 SC Coupé / Cabrio
616/16
1600
M 810001to end of production
1600
cc.
70 kw / 95 HP.
1964
356 SC Coupé Karmann
616/16
1600
M 820001 to end of production
1600
cc.
70 kw / 95 HP.
1965
356 SC Coupé / Cabrio
616/16
1600
M 821702 to end of production
1600
cc.
70 kw / 95 HP.
This exhaust
valve is not suitable for the Carrera
versions of the Porsche 356 C.
Sodium-filled exhaust valves have a hollow valve stem
which is partially filled with granular sodium metal. Sodium is a highly
conductive metal for heat. The up-and-down movement of the exhaust valve when
the engine is running causes the sodium inside the valve stem to transfer heat
from the valve head to the cooler valve stem top which aids in heat
dissipation.
Remarks: the use of
exhaust valves with a solid steel stem reference 356.010090E is recommended to preserve the original engine
specifications on the Porsche 356 C and 356 SC from 1964-1965.
Exhaust valve dimensions for sodium-filled valves:
Stem diameter: 10 mm.
Stem type: hollow, sodium-filled
Head diameter: 34 mm.
Length: 128.5 mm.
It is good practice to compare the size and shape of
your old exhaust valves with the size of the replacement units before starting
cylinder head reassembly.