Home Forums Tech Talk TM Top End Interchangeability Reply To: TM Top End Interchangeability

#69850

Daniel Wendel
Participant

The flat top piston is from VHM. You would need use their head insert for the flat top piston, which brings it correct combustion chamber volume.
The flat top allows about 2% more airflow at low exhaust port openings vs the 4 degree TM “special”.
I found it made a more power compared to the K9B standard.