hastings ringen 1200 080 wg1297672 2m6482080Includes Top Compression Rings, Second Compression Rings, and Oil Control Rings, Top Compression Rings Are Barrel Face, Helps in the Heat Transfer Process Between The Piston and Cylinder Wall, Controls Combustion Chamber GASES ALLOWING THE Piston to Transfer The Energy of the Trans Combust are napier, reverse twist call Along with a Taper Machined Ring Face Duplicates The Od Bottom Side Scraping Edge of a Positive Twist Torsional Ring, SIDE SIDE THAT