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- O-520 Continental Series Engines
- 9.0:1 Compression Ratio (11.4:1 for IO-550 Installations)
- 5.250 Bore
- Only Available in P10 & P15 Bore Sizes
- Approx weight = 1220 grams
- This piston uses standard Continental Rings and Piston Pins
- The Oil Scraper Ring is not used on this piston - top 3 rings only!
- This Piston is not FAA-PMA approved and is for experimental or ground use only!
- Forged and Machined in the USA