SPECIFICATIONS:
Bore (mm): 86
Compression Ratio: e=8.6 (MR 8.9)
Thickness (mm): 1.0

FEATURES:
Opposed Bead Stopper type (Independent water hole):
– Water holes and head bolt holes have independent bead that is the mainstream technology in motor racing. It reduces possibility of overheating even combustion gas leakage due to high horsepower.
– Because of the new design of bead shape around head bolt hole and water hole, crack around head bolt hole will be prevented.