ASC539521

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.