High-Tension Ring Set Designed for NSC Cylinders. Complete Head and Base Gasket Set.
Brand New in Original Revolution Performance Packaging. Why Choose the Revolution Performance 139 Big Bore Kit? Massive 139 Cubic Inch Displacement Upgrade. NSC Plating Reduces Friction & Heat. Improved Engine Cooling and Longevity.
No Sleeves - Allows Maximum Bore Size. Material: All-Aluminum Cylinders with NSC Plating. Product Type: Cylinder Kit / Big Bore Kit. Upgraded Head Bolts and Cylinder Studs Recommended.Electra Glide Revival FLH (2021). Turn your Milwaukee-Eight into a monster with this Revolution Performance 139 Big Bore Kit.