128" Power Package Engine Performance Kit - Chain Drive

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Fitments Years Make Model 2017 - 2021 Harley-Davidson CVO Electra Glide Ultra Limited FLHTKSE 2017 - 2019 Harley-Davidson Electra Glide Ultra Limited Low FLHTKL 2017 - 2022 Harley- Davidson Electra Glide Ultra Limited FLHTK 2020 - 2022 Harley-Davidson Road Glide Limited FLTRK 2017 - 2019 Harley-Davidson Road Glide Ultra FLTRU 2017 - 2022 Harley-Davidson Street Glide Special FLHXS 2019 - 2022 Harley-Davidson Electra Glide Standard EFI FLHTI 2017 - 2022 Harley-Davidson CVO Street Glide FLHXSE 2017 - 2022 Harley-Davidson Road King EFI FLHR 2017 - 2022 Harley-Davidson Street Glide EFI FLHX 2017 - 2022 Harley-Davidson Road Glide Special FLTRXS 2017 - 2022 Harley-Davidson Road Glide Custom FLTRX 2017 - 2022 Harley-Davidson Road King Special FLHRXS 2022 Harley-Davidson Road Glide ST FLTRXST 2018 - 2020 Harley-Davidson Softail Deluxe FLDE 2018 - 2019 Harley-Davidson Softail Fat Bob FXFB 2018 - 2022 Harley-Davidson Softail Fat Bob 114 FXFBS 2017 - 2019 Harley-Davidson Electra Glide Ultra Classic EFI FLHTCUI 2022 Harley-Davidson Street Glide ST FLHXST 2020 - 2022 Harley-Davidson Softail Standard FXST 2018 - 2020 Harley-Davidson Softail Breakout 114 FXBRS 2017 - 2021 Harley-Davidson Electra Glide Police FLHTPI 2018 - 2022 Harley-Davidson CVO Road Glide Custom FLTRXSE 2022 Harley-Davidson CVO Road Glide Limited 2018 - 2019 Harley-Davidson Softail Breakout FXBR 2018 - 2019 Harley-Davidson Softail Fat Boy FLFB 2018 - 2022 Harley-Davidson Softail Fat Boy 114 FLFBS 2018 - 2021 Harley-Davidson Softail Heritage Classic FLHC 2021 Harley-Davidson Electra Glide Revival 2018 - 2022 Harley-Davidson Softail Heritage Classic 114 FLHCS 2018 - 2020 Harley-Davidson Softail Low Rider FXLR 2018 - 2021 Harley-Davidson Softail Slim FLSL 2018 - 2021 Harley-Davidson Softail Sport Glide FLSB 2018 - 2022 Harley-Davidson Softail Street Bob FXBB 2020 - 2022 Harley-Davidson Softail Low Rider S FXLRS 2019 - 2020 Harley-Davidson FXDR 114 2022 Harley-Davidson Softail Low Rider ST FXLRST FeaturesBig-bore bolt-on kit increases 114"/117" with 4-1/2" stroke M-Eight with no case machining required4-1/4" bore cylinders with 11:1 forged pistonsS&S oil pump/cam plate with blue anodized finishPassage plugs are removable for servicingIndependent scavenge sections for flywheel cavity and cam chestDebris screen in both scavenge pickupsMagnet in cam chest to help prevent debris from entering the oil pumpIncreased oil flow capacity on both the oil feed and scavenge sideAdjustable pressure relief valve can be adjusted with the unit installed in the engineQuickee pushrods with chrome pushrod tubesS&S premium tappetsS&S hard-anodized, black coated tappet cuffs are billet aluminum constructionImprove tappet stability in high-lift, high-rpm situationsS&S 550 cams designed for big bore applicationsS&S valve springs work with cams up to .605" liftHigh-performance conical single-wire spring designAll necessary gaskets, bearings, and hardware for bolt-on installation is includedMade in the U.S.A.Specs Compression Ratio: 11.1:1 Cooling System: Water Cooled Model: Power Package Riding Style: Street Stroke Length: 4.50" Cam Drive Type: Chain Color/Finish: Highlighted Fins Units: Kit Base Color: Black Color/Finish: Black Granite Style: Big Bore Type: Engine Bore Size: 4.250" Cooling System: Oil Cooled Displacement: 128" Product Name: Performance KitApproximate Package Weight & Dimensions Weight: 44.7 Height: 12.25 Length: 27.25 Width: 20.25 Show more