Check the listing for details. ARC #6254 Billet Alum Rod (3.308" std) Predator 212cc USA Made. Condition: New. Listed at 74.99 USD. ARC Billet Alum Connecting Rod (3.308" std length) Fits Both Hem 60363 and Non Hem 69730 Predator 212cc Adding this rod to either Predator 212cc Engines will keep piston in its present location in the cylinder.Both Predator 212cc Engines average .020 to .025 below block deck from the factory..**ARC 6254 Std. Rod Keeps piston at same location **ARC 6256 +020 Rod Raises piston .020 higher in cylinder (Brings factory piston to top of cylinder (Adds Compression) **ARC 6252 +040 Rod Raises piston .040 higher in the cylinder (This rod is used mostly on a non hem 69730 when you install a flat top piston.. The flat top pistons are .020 shorter on compression height so this rod brings piston to top of cylinder. WE also handle Hi Performance Hypertectic Flat Top Pistons for Predator 212cc and other 212cc Engines in sizes > Std, +010, +020, +030, +060 (2.815) & +080 (2.835)