Hastings Cast Piston Rings Std for Twin Power 1340cc

• Size: Std
• Type: Piston Ring Set
• UPC: 075538113973

The Hastings Cast Piston Rings for Twin Power 1340cc engines are designed to provide reliable performance. These ring sets include cast iron compression rings and three-piece flex-vent oil rings. They are designed for two pistons and are available for both Shovelhead and Evolution 1340cc engines. For early 1340cc Shovelhead applications, the Hastings #6127 rings have a standard bore of 3.498", with 3/16" oil rings and 1/16" compression rings. They fit 1978-Early 1983 FL and 1979-Early 1982 FX models. For late 1340cc Evolution applications, the Hastings #6164 rings also have a 3.498" standard bore, but with 5/32" oil rings and 1/16" compression rings. They fit Late 1984-1999 Evolution Big Twin models. These rings feature a reverse torsional taper face second ring and are designed for easy installation with a "spiral-on" three-piece oil ring design.