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Supertech piston set for Mitsubishi 4G63 with 85.5mm bore (+0.5) featuring a -20.5cc dish and compression in the 8.6:1–9:1 range depending on build. Supplied as a set of four pistons (rings not included), these pistons are intended for 4G63 rebuilds that require the oversize bore and dished crown to manage static compression and accommodate specific head chamber volumes. They provide the dimensional match needed for proper assembly.
Supertech Mitsubishi 4G63 85.5mm (+0.5) -20.5cc Dish 8.6:1/9:1 CR Piston - Set of 4 (Excl Rings)
