Hastings 80" EVO .010" Oversize Piston Rings for HD 1983-2003

Enhance your Harley Davidson 80" Evolution engine's performance and longevity with this premium set of Hastings .010" oversize piston rings. Engineered for optimal combustion control and oil economy, these rings are a crucial component for any engine rebuild or refresh, ensuring your motorcycle runs at its peak.

Description

These Hastings 80" EVO .010" oversize piston rings are meticulously engineered to restore and enhance your engine's efficiency. The top compression rings feature a precision barrel face design, optimizing heat transfer between the piston and cylinder wall while effectively controlling combustion chamber gases. This design ensures maximum energy transfer to the crankshaft, boosting overall engine power. The second compression rings utilize a reverse torsional taper face, specifically promoting superior side sealing. This innovative design prevents oil from being forced under and behind the ring, significantly improving oil economy and reducing emissions. For unparalleled oil control, the set includes three-piece Flex Vent oil control rings. Their unique three-piece construction allows for rails with a small cross-sectional area, ensuring excellent conformability to the cylinder bore. This provides uniform pressure across four steel rails and two expanders, guaranteeing positive oil control. Proudly Made in the USA, these piston rings are a testament to quality and precision engineering, offering reliable performance for your Harley Davidson 80" Evolution engine.

Features & Highlights

• Optimized Combustion Control: Top compression rings feature a barrel face design for superior heat transfer and efficient management of combustion gases.
• Enhanced Oil Economy: Second compression rings with a reverse torsional taper face prevent oil bypass, leading to better oil consumption and reduced emissions.
• Superior Oil Control: Three-piece Flex Vent oil control rings provide exceptional conformability to the cylinder bore, ensuring positive and consistent oil scraping.
• Complete Engine Set: Includes all necessary rings for two pistons, facilitating a comprehensive engine rebuild or refresh.
• Precision Engineering: Specifically designed for 80" Evolution engines with a .010" oversize bore for a perfect fit and optimal function.
• American Made Quality: Manufactured in the USA, guaranteeing high-quality materials and craftsmanship for long-lasting reliability.

Technical Specifications

• Brand: Hastings
• Product Type: Piston Ring Set
• Engine Displacement: 80 cubic inches (EVO)
• Oversize: .010"
• Top Compression Ring Type: Barrel Face
• Second Compression Ring Type: Reverse Torsional Taper Face
• Oil Control Ring Type: Three-Piece Flex Vent
• Quantity: Rings for two pistons
• Country of Origin: USA
• EAN: 0075538112358

Important to Know

Due to the thermal conductivity and design of KB pistons, special attention is required to the top ring end gap. Please read instructions furnished with your piston for correct ring installation.