The Supertech pistons for a Honda B20 block with a B16 head are sold as a set of four machined to an 84mm bore with a +5.5cc dome yielding a 12.5:1 compression ratio. Rings are not included. These pistons provide the required dome volume and bore sizing to achieve the stated compression and combustion chamber geometry for the B20/B16 combination during engine rebuilds or component replacement.
Supertech Honda B20 Block B16 Head 84mm Bore +5.5cc Dome 12.5:1 CR Pistons - Set of 4 (Excl Rings)