for Honda S65
for Honda TRX70
for Honda ATC70 1978-1985
for Honda C70 1980-1983
for Honda C70 1971-1972
for Honda CRF70F 2004-2009
for Honda CRF70F 2011-2012
for Honda CT70 1969-1994
for Honda XR70R 1997-2003
Size:
Outer Bore Size: 47mm
Inner Bore Size: 39mm
Intake Valve Outside Diameter: 23mm / Length 66mm
Exhaust Valve Outside Diameter: 20mm / Length 66mm
Note:
This head can be used on either a 50cc or 70cc engine. But Please note that it is for Domed 50cc or Flat Top 70cc.
If you have a 50cc engine:
There are 2 different 50cc Cylinder heads for Honda. Compare the Combustion Chamber Size shown below to your current head. This head will only work with DOMED pistons.
If you have a 70cc engine:
There are 2 different 50cc Cylinder heads for Honda. Compare the Combustion Chamber Size shown below to your current head. This head will only work with FLAT TOP pistons.