See more: ENGINE GROUP - ENGINE PERFORMANCE KITS
124" Power Package Engine Performance KitMade in the U.S.A. Big Bore Kit 107" to 124" Big bore kit Bolt on kit No case matching required Forged pistons 11:1 Compression ratio Oil Pump/Cam Plate Precision machined from billet aluminum Blue anodized finish Passage plugs removable for servicing Independent scavenge sections for flywheel cavity and cam chest Debris screens in both the scavenge pickups Magnet in cam chest to help to stop debris from entering oil pump Increased flow capacity on both feed and scavenge side Adjustable pressure relief valve is adjustable with unit installed in engine Pushrods Quikee pushrods Tappets S&S precision tappets Tappet Cuffs Hard anodized black coating Billet aluminum construction Stronger than stock material eliminates distortion Improve tappet stability in high lift and high rpm situations Cam S&S 550 cam-designed for big bore applications Valve Springs Work well with cams up to .605" lift High performance conical single wire spring S&S does not recommend compression ratios higher than 10:1 for Tri Glide® or other three wheel models (including conversions) due to extra loads caused by the lugging nature of these bikes. Detonation and subsequent engine damage may result Includes chrome pushrod tubes.