Need Piston Rings? 
ASC75413F Rev A Piston
Parallel Valve Lycoming Series Engines
7.0:1 Compression Ratio
5.125 Bore
Approx Weight = 1120 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