VHM Cylinder Heads
COMBUSTION CHAMBER VOLUME: 43.00 cc
SQUASH EDGE DIMENSION: 2.00 mm
PISTON HEIGHT: 0.75 mm
PISTON BOTTOM TYPE: DOME
BURN CHAMBER VOLUME: 11.20 cc
SQUASH EDGE DIMENSION: 0.90 mm
PISTON HEIGHT: -0.50 mm
PISTON BOTTOM TYPE: FLAT BOTTOM
COMBUSTION CHAMBER VOLUME: 11.20 cc
SQUASH EDGE DIMENSION: 1.00 mm
PISTON HEIGHT: +1.90 mm
PISTON BOTTOM TYPE: DOME
COMBUSTION CHAMBER VOLUME: 11.20 cc
SQUASH EDGE DIMENSION: 1.00 mm
PISTON HEIGHT: +2.10 mm
PISTON BOTTOM TYPE: DOME
COMBUSTION CHAMBER VOLUME: 11.20 cc
SQUASH EDGE DIMENSION: 1.00 mm
PISTON HEIGHT: -0.50 mm
PISTON BOTTOM TYPE: FLAT BOTTOM
COMBUSTION CHAMBER VOLUME: 21.00 cc
SQUASH EDGE DIMENSION: 1.60 mm
PISTON HEIGHT: 0.00 mm
PISTON BOTTOM TYPE: Flat bottom 4�
COMBUSTION CHAMBER VOLUME: 24.00 cc
SQUASH EDGE DIMENSION: 1.60 mm
PISTON HEIGHT: 0.00 mm
PISTON BOTTOM TYPE: FLAT PISTON 4�
COMBUSTION CHAMBER VOLUME: 23.00 cc
SQUASH EDGE DIMENSION: 1.60 mm
PISTON HEIGHT: 0.00 mm
PISTON BOTTOM TYPE: FLAT PISTON 4�
COMBUSTION CHAMBER VOLUME: 28.00 cc
SQUASH EDGE DIMENSION: 1.75 mm
PISTON HEIGHT: -0.80 mm
PISTON BOTTOM TYPE: DOME
BURN CHAMBER VOLUME: 20.60 cc
SQUASH EDGE DIMENSION: 1.30 mm
PISTON HEIGHT: -0.40 mm
PISTON BOTTOM TYPE: DOME
COMBUSTION CHAMBER VOLUME: 28.00 cc
SQUASH EDGE DIMENSION: 1.60 mm
PISTON HEIGHT: -0.60 mm
PISTON BOTTOM TYPE: DOME
IDEAL FOR DEEP SAND AND/OR SHORT DISTANCES
BURNER CHAMBER VOLUME: 11.00 cc
SQUARE EDGE DIMENSION: 1.00 mm
PISTON HEIGHT: 1.85 mm
PISTON TYPE: DOME
IDEAL FOR DEEP SAND AND/OR SHORT DISTANCES
BURNER CHAMBER VOLUME: 10.80 cc
SQUASH EDGE DIMENSION: 0.90 mm
PISTON HEIGHT: 0.00 mm
PISTON BOTTOM TYPE: 12� FLAT BOTTOM
IDEAL FOR DEEP SAND AND/OR SHORT DISTANCES
BURNER CHAMBER VOLUME: 10.80 cc
SQUASH EDGE DIMENSION: 1.00 mm
PISTON HEIGHT: -0.10 mm
PISTON TYPE: 12� FLAT BOTTOM
IDEAL FOR DEEP SAND AND/OR SHORT DISTANCES
BURNER CHAMBER VOLUME: 11.00 cc
SQUASH EDGE DIMENSION: 0.90 mm
PISTON HEIGHT: 0.00 mm
PISTON BOTTOM TYPE: 12� FLAT BOTTOM
SQUASH EDGE DIMENSION: 1.00 mm
PISTON HEIGHT: 1.85 mm
PISTON TYPE: DOME
MORE TORQUE, MORE PEAK PERFORMANCE
IDEAL FOR TOUGH AND/OR LONG TRIPS
BURN CHAMBER VOLUME: 11.60 cc
SQUASH EDGE DIMENSION: 1.00 mm
PISTON HEIGHT: -0.10 mm
PISTON BOTTOM TYPE: 12� FLAT BOTTOM
MORE TORQUE, MORE PEAK PERFORMANCE
IDEAL FOR TOUGH AND/OR LONGER RIDES
BURN CHAMBER VOLUME: 11.80 cc
SQUASH EDGE DIMENSION: 1.00 mm
PISTON HEIGHT: -0.10 mm
PISTON BOTTOM TYPE: 12� FLAT BOTTOM
BURNER CHAMBER VOLUME: 11.20 cc
SQUASH EDGE DIMENSION: 1.00 mm
PISTON HEIGHT: 1.85 mm
PISTON TYPE: DOME
IDEAL FOR DEEP SAND AND/OR SHORT DISTANCES
BURNER CHAMBER VOLUME: 11.00 cc
SQUASH EDGE DIMENSION: 1.00 mm
PISTON HEIGHT: -0.10 mm
PISTON TYPE: 12� FLAT BOTTOM
BURNER CHAMBER VOLUME: 11.20 cc
SQUASH EDGE DIMENSION: 1.00 mm
PISTON HEIGHT: -0.10 mm
PISTON TYPE: 12� FLAT BOTTOM
BURNER CHAMBER VOLUME: 11.40 cc
SQUASH EDGE DIMENSION: 1.00 mm
PISTON HEIGHT: -0.10 mm
PISTON TYPE: 12� FLAT BOTTOM
BURN CHAMBER VOLUME: 11.20 cc
SQUEEZE EDGE DIMENSION: 0.90 mm
PISTON HEIGHT: 0.00 mm
PISTON BOTTOM TYPE: 12� FLAT BOTTOM
IDEAL FOR DEEP SAND AND/OR SHORT DISTANCES
BURNER CHAMBER VOLUME: 11.80 cc
SQUASH EDGE DIMENSION: 1.00 mm
PISTON HEIGHT: -0.10 mm
PISTON BOTTOM TYPE: 12� FLAT BOTTOM
For use with insert AE32149-
For use with solid carbide inserts:
- AE32036-E (2000 - 2002 / Ø54mm piston)
- AE32036-122 (1995 - 1999 / Ø56mm piston)
COLOR: GOLD
COLOR: GOLD
COLOR: GOLD
COLOR: GOLD
COLOR: GOLD
COLOR: GOLD
COLOR: GOLD
COLOR: GOLD
COMBUSTION CHAMBER VOLUME: 5.55 cc
SQUASH EDGE DIMENSION: 0.75 mm
PISTON HEIGHT: +0.55 mm
PISTON BOTTOM TYPE: FLAT, 12�
COMBUSTION CHAMBER VOLUME: 5.40 cc
SQUASH EDGE DIMENSION: 0.75 mm
PISTON HEIGHT: +0.55 mm
PISTON BOTTOM TYPE: FLAT, 12�
BURN CHAMBER VOLUME: 5.25 cc
SQUASH EDGE DIMENSION: 0.75 mm
PISTON HEIGHT: +0.55 mm
PISTON BOTTOM TYPE: FLAT, 12�
IDEAL FOR DEEP SAND AND/OR SHORT DISTANCES
BURNER CHAMBER VOLUME: 10.8 cc
SQUASH EDGE DIMENSION: 1.00 mm
PISTON HEIGHT: -0.10 mm
PISTON BOTTOM TYPE: FLAT BOTTOM
MORE TORQUE, MORE PEAK PERFORMANCE
IDEAL FOR TOUGH AND/OR LONGER RIDES
BURNER CHAMBER VOLUME: 11.2 cc
SQUASH EDGE DIMENSION: 1.00 mm
PISTON HEIGHT: -0.10 mm
PISTON BOTTOM TYPE: FLAT BOTTOM
BURNER CHAMBER VOLUME: 11.0 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
BURNER CHAMBER VOLUME: 17.20 cc
SQUASH EDGE DIMENSION: 1.40 mm
PISTON HEIGHT: +1.50 mm
PISTON BOTTOM TYPE: DOME
MORE TORQUE, MORE PEAK PERFORMANCE
IDEAL FOR TOUGH AND/OR LONGER RIDES
BURN CHAMBER VOLUME: 18.00 cc
SQUASH EDGE DIMENSION: 1.40 mm
PISTON HEIGHT: +1.50 mm
PISTON BOTTOM TYPE: DOME
BURNER CHAMBER VOLUME: 17.60 cc
SQUASH EDGE DIMENSION: 1.40 mm
PISTON HEIGHT: +1.50 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
With this blind insert, you can machine the combustion chamber specifications yourself. This gives you the flexibility to experiment with your own ideas.
Only to be used in combination with the DA31247 base gasket
COMBUSTION CHAMBER VOLUME: 24.00 cc
SQUASH EDGE DIMENSION: 1.70 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
IDEAL FOR DEEP SAND AND/OR SHORT DISTANCES
BURNER CHAMBER VOLUME: 13.40 cc
SQUASH EDGE DIMENSION: 1.10 mm
PISTON HEIGHT: 0.00 mm
PISTON BOTTOM TYPE: FLAT BOTTOM
VHM Cylinder Heads: engineered for motocross and enduro riders. Strong materials, precise fitment and reliable performance.





