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The Supertech piston set for Honda K‑series 86.50mm bore engines includes four forged pistons with a +11.4cc dome, yielding a 12.5:1 compression ratio; rings are excluded. Built to the specified bore and dome volume, this set supports K‑series four‑cylinder rebuilds or high‑compression builds where accurate piston volume and fit are essential for achieving the intended compression and engine geometry.
Supertech Honda K Series 86.50mm Bore +11.4cc Dome 12.5:1 CR Pistons - Set of 4 (Excl Rings)
