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Supertech piston set for Mazda Miata 1.8L with 84mm bore and 30.5mm compression height featuring a -4cc dish for an approximate 8.7:1 compression ratio. Supplied as a set of four pistons (rings not included), these pistons are intended for rebuilds or overbore work on 1.8L Miata engines where specified crown volume and compression height are required. They maintain the geometry needed for reliable piston-to-head clearance.
Supertech Mazda Miata 1.8L 84mm 30.5mm CH -4cc Dish 8.7:1 CR Piston - Set of 4 (Excl Rings)
