Need Piston Rings? 
FAA-PMA ASC10207 Rev C Piston
Angle Valve Lycoming Series Engines
8.7:1 Compression Ratio
5.125 Bore
Approx Weight = 1335 grams
This piston uses standard Lycoming Rings and Piston Pins
This Piston is FAA-PMA approved
Installation Eligibility - Service Instruction 1037K
Forged and Machined in the USA