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Need Piston Rings?  Lycoming Piston Rings for Lycoming Pistons

ASC9521FL Piston

Parallel Valve Lycoming Series Engines

9.5:1 Compression Ratio

5.125 Bore

Approx Weight = 1205 grams

This piston uses standard Lycoming Rings and Piston Pins

This Piston is not FAA-PMA Approved and is for experimental or ground use only

Forged and Machined in the USA