800/800 HO?

[Devilmanak]

How can I tell the difference between an 800 and an 800 HO head and cylinders? Do they interchange, is the bottom end different?
Chris

 

[RKT]

How can I tell the difference between an 800 and an 800 HO head and cylinders? Do they interchange, is the bottom end different?
Chris

They will interchange

Easy, 1st look thing, is that the HO has a cast protrusion on the reed block at 12:00... The 01-02 non HO cylinders have no protrusion BUT the 03 NON HO does have this.. BUT... the REAL HO has a "dimple" in this protrusion and the NON HO 2003 is flat surface with no "dimple"

 

[Devilmanak]

OH. You are right, easy, there on the outside of the cylinder. Thanks!
Chris