VHM Cylinder Heads
BURN CHAMBER VOLUME: 11.80 cc
SQUASH EDGE DIMENSION: 0.90 mm
PISTON HEIGHT: +0.40 mm
PISTON BOTTOM TYPE: 12� FLAT BOTTOM
IDEAL FOR DEEP SAND AND/OR SMALLER TRACKS
BURNER CHAMBER VOLUME: 11.40 cc
SQUASH EDGE DIMENSION: 0.90 mm
PISTON HEIGHT: +0.00 mm
PISTON BOTTOM TYPE: FLAT BOTTOM
BURN CHAMBER VOLUME: 11.60 cc
SQUASH EDGE DIMENSION: 0.90 mm
PISTON HEIGHT: +0.00 mm
PISTON BOTTOM TYPE: FLAT BOTTOM
BURN CHAMBER VOLUME: 11.80 cc
SQUASH EDGE DIMENSION: 0.90 mm
PISTON HEIGHT: +0.00 mm
PISTON BOTTOM TYPE: FLAT BOTTOM
IDEAL FOR DEEP SAND AND/OR SMALLER TRACKS
BURNER CHAMBER VOLUME: 11.40 cc
SQUASH EDGE DIMENSION: 1.00 mm
PISTON HEIGHT: +0.00 mm
PISTON BOTTOM TYPE: FLAT BOTTOM
BURN CHAMBER VOLUME: 11.60 cc
SQUASH EDGE DIMENSION: 1.00 mm
PISTON HEIGHT: +0.00 mm
PISTON BOTTOM TYPE: FLAT BOTTOM
BURN CHAMBER VOLUME: 11.80 cc
SQUASH EDGE DIMENSION: 1.00 mm
PISTON HEIGHT: +0.00 mm
PISTON BOTTOM TYPE: FLAT BOTTOM
IDEAL FOR DEEP SAND AND/OR SHORT DISTANCES
COMBUSTION CHAMBER VOLUME: 21.45 cc
SQUASH EDGE DIMENSION: 1.60 mm
PISTON HEIGHT: +3.70 mm
PISTON BOTTOM TYPE: DOME
COMBUSTION CHAMBER VOLUME: 21.80 cc
SQUASH EDGE DIMENSION: 1.60 mm
PISTON HEIGHT: +3.70 mm
PISTON BOTTOM TYPE: DOME
BURNER CHAMBER VOLUME: 22.20 cc
SQUASH EDGE DIMENSION: 1.60 mm
PISTON HEIGHT: +3.70 mm
PISTON BOTTOM TYPE: DOME
COMBUSTION CHAMBER VOLUME: 11.80 cc
SQUARE EDGE DIMENSION: 0.90 mm
PISTON HEIGHT: -0.35 mm
PISTON BOTTOM TYPE: FLAT BOTTOM
STANDARD VHM COMBUSTION CHAMBER
COMBUSTION CHAMBER VOLUME: 12.00 cc
SQUASH EDGE DIMENSION: 0.90 mm
PISTON HEIGHT: -0.35 mm
PISTON BOTTOM TYPE: FLAT BOTTOM
SQUASH EDGE DIMENSION: 1.10 mm
PISTON HEIGHT: 0.00 mm
PISTON BOTTOM TYPE: FLAT BOTTOM
SQUASH EDGE DIMENSION: 1.10 mm
PISTON HEIGHT: 0.00 mm
PISTON BOTTOM TYPE: FLAT BOTTOM
BURNER CHAMBER VOLUME: 13.60 cc
SQUASH EDGE DIMENSION: 1.10 mm
PISTON HEIGHT: 0.00 mm
PISTON BOTTOM TYPE: FLAT BOTTOM
BURN CHAMBER VOLUME: 20.60 cc
SQUASH EDGE DIMENSION: 1.30 mm
PISTON HEIGHT: -0.40 mm
PISTON BOTTOM TYPE: DOME
IDEAL FOR DEEP SAND AND/OR SHORT DISTANCES
COMBUSTION CHAMBER VOLUME: 27.00 cc
SQUASH EDGE DIMENSION: 1.80 mm
PISTON HEIGHT: -0.50 mm
PISTON BOTTOM TYPE: DOME
COMBUSTION CHAMBER VOLUME: 28.00 cc
SQUASH EDGE DIMENSION: 1.80 mm
PISTON HEIGHT: -0.50 mm
PISTON BOTTOM TYPE: DOME
COMBUSTION CHAMBER VOLUME: 29.00 cc
SQUASH EDGE DIMENSION: 1.80 mm
PISTON HEIGHT: -0.50 mm
PISTON BOTTOM TYPE: DOME
COMBUSTION CHAMBER VOLUME: 28.50 cc
SQUASH EDGE DIMENSION: 1.70 mm
PISTON HEIGHT: 0.00 mm
PISTON BOTTOM TYPE: FLAT
COMBUSTION CHAMBER VOLUME: 5.20 cc
SQUASH EDGE DIMENSION: 0.80 mm
PISTON HEIGHT: +0.40 mm
PISTON BOTTOM TYPE: 12� FLAT BOTTOM
IDEAL FOR DEEP SAND AND/OR SHORT DISTANCES
BURNER CHAMBER VOLUME: 5.00 cc
SQUASH EDGE DIMENSION: 0.80 mm
PISTON HEIGHT: +0.40 mm
PISTON BOTTOM TYPE: 12� FLAT BOTTOM
With this blind insert, you can machine the combustion chamber specifications yourself. This gives you the flexibility to experiment with your own ideas.
IDEAL FOR DEEP SAND AND/OR SHORT DISTANCES
COMBUSTION CHAMBER VOLUME: 5.00 cc
SQUASH EDGE DIMENSION: 0.80 mm
PISTON HEIGHT: +2.25 mm
PISTON BOTTOM TYPE: DOME
COMBUSTION CHAMBER VOLUME: 5.20 cc
SQUASH EDGE DIMENSION: 0.80 mm
PISTON HEIGHT: +2.25 mm
PISTON BOTTOM TYPE: DOME
MORE TORQUE, MORE PEAK PERFORMANCE
IDEAL FOR TOUGH AND/OR LONGER RIDES
COMBUSTION CHAMBER VOLUME: 5.40 cc
SQUARE EDGE DIMENSION: 0.80 mm
PISTON HEIGHT: +2.25 mm
PISTON BOTTOM TYPE: DOME
IDEAL FOR DEEP SAND AND/OR SHORT DISTANCES
BURNER CHAMBER VOLUME: 5.00 cc
SQUASH EDGE DIMENSION: 0.80 mm
PISTON HEIGHT: +2.45 mm
PISTON BOTTOM TYPE: DOME
BURNER CHAMBER VOLUME: 5.20 cc
SQUASH EDGE DIMENSION: 0.80 mm
PISTON HEIGHT: +2.45 mm
PISTON BOTTOM TYPE: DOME
MORE TORQUE, MORE PEAK PERFORMANCE
IDEAL FOR TOUGH AND/OR LONGER RIDES
COMBUSTION CHAMBER VOLUME: 5.40 cc
SQUARE RATIO: 0.80 mm
PISTON HEIGHT: +2.45 mm
PISTON BOTTOM TYPE: DOME
IDEAL FOR DEEP SAND AND/OR SHORT DISTANCES
COMBUSTION CHAMBER VOLUME: 4.00 cc
SQUASH EDGE DIMENSION: 0.60 mm
PISTON HEIGHT: +2.45 mm
PISTON BOTTOM TYPE: DOME
COMBUSTION CHAMBER VOLUME: 4.20 cc
SQUASH EDGE DIMENSION: 0.60 mm
PISTON HEIGHT: +2.45 mm
PISTON BOTTOM TYPE: DOME
COMBUSTION CHAMBER VOLUME: 48.00 cc
SQUASH EDGE DIMENSION: 2.50 mm
PISTON HEIGHT: +6.20 mm
PISTON BOTTOM TYPE: DOME
BURNER CHAMBER VOLUME: 8.00 cc
SQUASH EDGE DIMENSION: 0.80 mm
PISTON HEIGHT: +0.60 mm
PISTON BOTTOM TYPE: 12� FLAT BOTTOM
IDEAL FOR DEEP SAND AND/OR SHORT DISTANCES
BURNER CHAMBER VOLUME: 7.80 cc
SQUASH EDGE DIMENSION: 0.80 mm
PISTON HEIGHT: +0.60 mm
PISTON BOTTOM TYPE: 12� FLAT BOTTOM
MORE TORQUE, MORE PEAK PERFORMANCE
IDEAL FOR TOUGH AND/OR LONGER RIDES
BURN CHAMBER VOLUME: 8.20 cc
SQUASH EDGE DIMENSION: 0.80 mm
PISTON HEIGHT: +0.60 mm
PISTON FLOOR TYPE: 12� FLAT FLOOR
IDEAL FOR DEEP SAND AND/OR SHORT DISTANCES
BURN CHAMBER VOLUME: 7.80 cc
SQUASH EDGE DIMENSION: 0.80 mm
PISTON HEIGHT: +2.20 mm
PISTON BOTTOM TYPE: DOME
BURNER CHAMBER VOLUME: 8.00 cc
SQUASH EDGE DIMENSION: 0.80 mm
PISTON HEIGHT: +2.20 mm
PISTON BOTTOM TYPE: DOME
MORE TORQUE, MORE PEAK PERFORMANCE
IDEAL FOR TOUGH AND/OR LONGER TRIPS
BURN CHAMBER VOLUME: 8.20 cc
SQUASH EDGE DIMENSION: 0.80 mm
PISTON HEIGHT: +2.20 mm
PISTON BOTTOM TYPE: DOME
BURNER CHAMBER VOLUME: 8.00 cc
SQUASH EDGE DIMENSION: 0.90 mm
PISTON HEIGHT: +1.70 mm
PISTON BOTTOM TYPE: DOME
BURNER CHAMBER VOLUME: 8.20 cc
SQUASH EDGE DIMENSION: 0.90 mm
PISTON HEIGHT: +1.70 mm
PISTON BOTTOM TYPE: DOME
VHM Cylinder Heads: engineered for motocross and enduro riders. Strong materials, precise fitment and reliable performance.





