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The Supertech piston set for Mazda Miata 1.8L engines supplies four forged pistons sized to an 83.5mm bore with a 10.5cc dome producing an 11.0:1 compression ratio; rings are not included. Built to the 1.8L Miata bore and crown volume specification, this set is suitable for rebuilds or modified engines that require higher compression through piston design while retaining the factory bore.
Supertech Mazda Miata 1.8L 83.5mm Bore 10.5cc Dome 11:1 CR Pistons - Set of 4 (Excl Rings)
