Order 12 or more Pistons and Save 10% Only applies to pistons - you can mix part numbers - Discount is automatically applied at check out. ASC539521 Rev B Piston C-75, C-85, C-90, O-200 & O-300 Continental Series Engines 9.5:1 Compression Ratio in C-90, O-200 & O-300 Series Engines 8.4:1 Compression Ratio in C-75 & C-85 Series Engines 4.062 Bore Available in STD & P15 Bore Sizes Approx weight = 740 grams This piston uses standard Continental Rings and Piston Pins This piston uses 2 Compression rings and one vented Oil Control (1 or 2 piece) ring. The Oil Scraper Ring is not used since the groove below the pin is omitted. This Piston is not FAA-PMA approved and is for experimental or ground use only! Forged and Machined in the USA This is a high performance piston with tighter piston to cylinder clearances than OEM specifications. It is important to ensure that choked cylinders have no more than .013" of diametrical choke.
