13B Semi PP Rotor Housing

1x Green Brothers brand new semi PP rotor housing. All product development, testing and CNC machine work is proudly done in house at their Mount Maunganui facility using high quality materials and equipment 

Included:

• New FC rotor housing 
• CNC semi PP - choose from 25mm or 28mm ports 
• Threaded & retained, fully O-ring sealed insert 
• Viton O-rings 

Optional Extras:

CNC waterjacket O-ringed sealing inserts (no epoxy filler required, no internal coolant leaks over time) Extra $220

CNC waterjacket grooves (improves thermal efficiency on the spark plug side of the housing - extending chrome surface life and reducing spark plug hole cracks over time) Extra $140

Intake manifold kit - CNC IDA tapered flange & pair of alloy runners (cut runners to desired length, then spigot into flange recesses for welding) Flange inside diameters are machined to match tube inside diameters so no port matching is required. Extra $320