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S&S Power Pack 128 CI – M8 (GEAR DRIVE)

S&S Power Pack 128 CI for M8’s are a bolt on kit, requiring no machining to the case with performance you can count and Made in the USA!!

 

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California Residents:

Due to the inability to drop ship Free Shipping is unavailable on some California orders please use “Add to Quote” option for delivered pricing 

International Ordering:

Customers located outside the USA please use “Add to Quote” option

Description

The S&S Power Pack 128 CI for M8 is a bolt on kit, requiring no machining to the case. It features highlighted fins and chrome pushrod tubes, with all parts precision machined from billet aluminum right here in the USA!!

FEATURES: 

  • Big Bore Kit:
  • Bolt on kit. No case machining required
  • 4.250″ bore
  • Forged pistons
  • 11.1: compression ratio
  • Oil Pump/Cam Plate
  • Precision machined from billet aluminum
  • Passage plugs removable for servicing
  • Independent scavenge sections for flywheel cavity and cam chest
  • Debris screens in both scavenge pickups
  • Magnet in cam chest to help to stop debris from entering oil pump
  • Increased flow capacity on both feed and scavenge side
  • Pressure Relief Valve is adjustable with unit installed in engine
  • Pushrods:
  • Quickee pushrods
  • Tappets:
  • S&S premium tappets
  • Tappet Cuffs:
  • 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
  • MADE IN U.S.A

SPECS: Oil Cooled 310-1104A

PRODUCT NAME PERFORMANCE KIT
TYPE ENGINE
STYLE 550G
MODEL POWER PACKAGE
COLOR/FINISH HIGHLIGHTED FINS / WRINKLE BLACK / BLACK GRANITE
DISPLACEMENT 128″
BORE SIZE 4.250″
COMPRESSION RATIO 11.1:1
CAM DRIVE TYPE GEAR
COOLING SYSTEM OIL COOLED
UNITS KIT
RIDING STYLE STREET

FITMENTS:

2020 Harley-Davidson Softail Low Rider S FXLRS
2020 Harley-Davidson Road Glide Limited FLTRK
2020 Harley-Davidson CVO Tri Glide FLHTCUTGSE
2020 Harley-Davidson Road King EFI FLHR
2020 Harley-Davidson CVO Street Glide FLHXSE
2020 Harley-Davidson Street Glide EFI FLHX
2020 Harley-Davidson Electra Glide Standard EFI FLHTI
2020 Harley-Davidson CVO Road Glide Custom FLTRXSE
2020 Harley-Davidson Softail Standard FXST
2019-2020 Harley-Davidson FXDR 114
2019-2020 Harley-Davidson Electra Glide Police FLHTPI
2019 Harley-Davidson Electra Glide Standard EFI FLHTI
2018-2020 Harley-Davidson Softail Heritage Classic 114 FLHCS
2018-2020 Harley-Davidson Softail Street Bob FXBB
2018-2020 Harley-Davidson Softail Sport Glide FLSB
2018-2020 Harley-Davidson Softail Heritage Classic FLHC
2018-2020 Harley-Davidson Softail Fat Bob 114 FXFBS
2018-2020 Harley-Davidson Softail Deluxe FLDE
2018-2020 Harley-Davidson Softail Breakout 114 FXBRS
2018-2020 Harley-Davidson Softail Low Rider FXLR
2018-2020 Harley-Davidson Softail Fat Boy 114 FLFBS
2018-2020 Harley-Davidson Softail Slim FLSL
2018-2019 Harley-Davidson Softail Fat Boy FLFB
2018-2019 Harley-Davidson Softail Breakout FXBR
2018-2019 Harley-Davidson Softail Fat Bob FXFB
2018-2019 Harley-Davidson CVO Road Glide Custom FLTRXSE
2017-2020 Harley-Davidson Electra Glide Ultra Limited FLHTK
2017-2020 Harley-Davidson Street Glide Special FLHXS
2017-2020 Harley-Davidson Freewheeler FLRT
2017-2020 Harley-Davidson Road King Special FLHRXS
2017-2020 Harley-Davidson Road Glide Special FLTRXS
2017-2020 Harley-Davidson CVO Electra Glide Ultra Limited FLHTKSE
2017-2020 Harley-Davidson Tri Glide Ultra Classic FLHTCUTG
2017-2020 Harley-Davidson Road Glide Custom FLTRX
2017-2019 Harley-Davidson Electra Glide Ultra Limited Low FLHTKL
2017-2019 Harley-Davidson Street Glide EFI FLHX
2017-2019 Harley-Davidson Road King EFI FLHR
2017-2019 Harley-Davidson Road Glide Ultra FLTRU
2017-2019 Harley-Davidson Electra Glide Ultra Classic EFI FLHTCUI
2017-2019 Harley-Davidson CVO Street Glide FLHXSE
2017-2018 Harley-Davidson Electra Glide Police FLHTPI

 

SPECS: Oil Cooled 310-1106A

PRODUCT NAME POWER PACKAGE
TYPE ENGINE
FINISH CHROME
COLOR/FINISH HIGHLIGHTED FINS / WRINKLE BLACK
BORE SIZE 4.250″
COMPRESSION RATIO 11.1:1
CAM DRIVE TYPE GEAR
COOLING SYSTEM OIL COOLED
UNITS KIT
RIDING STYLE STREET

FITMENTS:

2020 Harley-Davidson Softail Low Rider S FXLRS
2020 Harley-Davidson CVO Tri Glide FLHTCUTGSE
2020 Harley-Davidson Road Glide Limited FLTRK
2020 Harley-Davidson Road King EFI FLHR
2020 Harley-Davidson CVO Street Glide FLHXSE
2020 Harley-Davidson Street Glide EFI FLHX
2020 Harley-Davidson Electra Glide Standard EFI FLHTI
2020 Harley-Davidson CVO Road Glide Custom FLTRXSE
2020 Harley-Davidson Softail Standard FXST
2019-2020 Harley-Davidson FXDR 114
2019-2020 Harley-Davidson Electra Glide Police FLHTPI
2019 Harley-Davidson Electra Glide Standard EFI FLHTI
2018-2020 Harley-Davidson Softail Fat Bob 114 FXFBS
2018-2020 Harley-Davidson Softail Breakout 114 FXBRS
2018-2020 Harley-Davidson Softail Street Bob FXBB
2018-2020 Harley-Davidson Softail Slim FLSL
2018-2020 Harley-Davidson Softail Deluxe FLDE
2018-2020 Harley-Davidson Softail Low Rider FXLR
2018-2020 Harley-Davidson Softail Heritage Classic FLHC
2018-2020 Harley-Davidson Softail Sport Glide FLSB
2018-2020 Harley-Davidson Softail Fat Boy 114 FLFBS
2018-2020 Harley-Davidson Softail Heritage Classic 114 FLHCS
2018-2019 Harley-Davidson Softail Breakout FXBR
2018-2019 Harley-Davidson Softail Fat Boy FLFB
2018-2019 Harley-Davidson Softail Fat Bob FXFB
2018-2019 Harley-Davidson CVO Road Glide Custom FLTRXSE
2017-2020 Harley-Davidson Road King Special FLHRXS
2017-2020 Harley-Davidson Road Glide Special FLTRXS
2017-2020 Harley-Davidson Street Glide Special FLHXS
2017-2020 Harley-Davidson Freewheeler FLRT
2017-2020 Harley-Davidson Tri Glide Ultra Classic FLHTCUTG
2017-2020 Harley-Davidson CVO Electra Glide Ultra Limited FLHTKSE
2017-2020 Harley-Davidson Electra Glide Ultra Limited FLHTK
2017-2020 Harley-Davidson Road Glide Custom FLTRX
2017-2019 Harley-Davidson Electra Glide Ultra Limited Low FLHTKL
2017-2019 Harley-Davidson Street Glide EFI FLHX
2017-2019 Harley-Davidson Road King EFI FLHR
2017-2019 Harley-Davidson Road Glide Ultra FLTRU
2017-2019 Harley-Davidson Electra Glide Ultra Classic EFI FLHTCUI
2017-2019 Harley-Davidson CVO Street Glide FLHXSE
2017-2018 Harley-Davidson Electra Glide Police FLHTPI

 

SPECS: Oil Cooled 310-1110A

PRODUCT NAME POWER PACKAGE
TYPE ENGINE
FINISH CHROME
COLOR/FINISH BLACK GRANITE / HIGHLIGHTED FINS
BORE SIZE 4.250″
COMPRESSION RATIO 11.1:1
CAM DRIVE TYPE GEAR
COOLING SYSTEM OIL COOLED
UNITS KIT
RIDING STYLE STREET

FITMENTS:

2020 Harley-Davidson Softail Low Rider S FXLRS
2020 Harley-Davidson Road Glide Limited FLTRK
2020 Harley-Davidson CVO Tri Glide FLHTCUTGSE
2020 Harley-Davidson Road King EFI FLHR
2020 Harley-Davidson CVO Street Glide FLHXSE
2020 Harley-Davidson Street Glide EFI FLHX
2020 Harley-Davidson Electra Glide Standard EFI FLHTI
2020 Harley-Davidson CVO Road Glide Custom FLTRXSE
2020 Harley-Davidson Softail Standard FXST
2019-2020 Harley-Davidson FXDR 114
2019-2020 Harley-Davidson Electra Glide Police FLHTPI
2019 Harley-Davidson Electra Glide Standard EFI FLHTI
2018-2020 Harley-Davidson Softail Heritage Classic 114 FLHCS
2018-2020 Harley-Davidson Softail Street Bob FXBB
2018-2020 Harley-Davidson Softail Sport Glide FLSB
2018-2020 Harley-Davidson Softail Heritage Classic FLHC
2018-2020 Harley-Davidson Softail Fat Bob 114 FXFBS
2018-2020 Harley-Davidson Softail Deluxe FLDE
2018-2020 Harley-Davidson Softail Breakout 114 FXBRS
2018-2020 Harley-Davidson Softail Low Rider FXLR
2018-2020 Harley-Davidson Softail Fat Boy 114 FLFBS
2018-2020 Harley-Davidson Softail Slim FLSL
2018-2019 Harley-Davidson Softail Fat Boy FLFB
2018-2019 Harley-Davidson Softail Breakout FXBR
2018-2019 Harley-Davidson Softail Fat Bob FXFB
2018-2019 Harley-Davidson CVO Road Glide Custom FLTRXSE
2017-2020 Harley-Davidson Electra Glide Ultra Limited FLHTK
2017-2020 Harley-Davidson Street Glide Special FLHXS
2017-2020 Harley-Davidson Freewheeler FLRT
2017-2020 Harley-Davidson Road King Special FLHRXS
2017-2020 Harley-Davidson Road Glide Special FLTRXS
2017-2020 Harley-Davidson CVO Electra Glide Ultra Limited FLHTKSE
2017-2020 Harley-Davidson Tri Glide Ultra Classic FLHTCUTG
2017-2020 Harley-Davidson Road Glide Custom FLTRX
2017-2019 Harley-Davidson Electra Glide Ultra Limited Low FLHTKL
2017-2019 Harley-Davidson Street Glide EFI FLHX
2017-2019 Harley-Davidson Road King EFI FLHR
2017-2019 Harley-Davidson Road Glide Ultra FLTRU
2017-2019 Harley-Davidson Electra Glide Ultra Classic EFI FLHTCUI
2017-2019 Harley-Davidson CVO Street Glide FLHXSE
2017-2018 Harley-Davidson Electra Glide Police FLHTPI

 

SPECS: Water Cooled 310-1102A

PRODUCT NAME POWER PACKAGE
TYPE ENGINE
FINISH CHROME
COLOR/FINISH HIGHLIGHTED FINS / WRINKLE BLACK
BORE SIZE 4.250″
COMPRESSION RATIO 11.1:1
CAM DRIVE TYPE GEAR
COOLING SYSTEM WATER COOLED
UNITS KIT
RIDING STYLE STREET

FITMENTS:

2020 Harley-Davidson Road Glide Limited FLTRK
2020 Harley-Davidson CVO Tri Glide FLHTCUTGSE
2020 Harley-Davidson Softail Low Rider S FXLRS
2020 Harley-Davidson Road King EFI FLHR
2020 Harley-Davidson CVO Street Glide FLHXSE
2020 Harley-Davidson Street Glide EFI FLHX
2020 Harley-Davidson Electra Glide Standard EFI FLHTI
2020 Harley-Davidson CVO Road Glide Custom FLTRXSE
2020 Harley-Davidson Softail Standard FXST
2019-2020 Harley-Davidson FXDR 114
2019-2020 Harley-Davidson Electra Glide Police FLHTPI
2019 Harley-Davidson Electra Glide Standard EFI FLHTI
2018-2020 Harley-Davidson Softail Low Rider FXLR
2018-2020 Harley-Davidson Softail Heritage Classic FLHC
2018-2020 Harley-Davidson Softail Sport Glide FLSB
2018-2020 Harley-Davidson Softail Fat Bob 114 FXFBS
2018-2020 Harley-Davidson Softail Street Bob FXBB
2018-2020 Harley-Davidson Softail Deluxe FLDE
2018-2020 Harley-Davidson Softail Fat Boy 114 FLFBS
2018-2020 Harley-Davidson Softail Breakout 114 FXBRS
2018-2020 Harley-Davidson Softail Heritage Classic 114 FLHCS
2018-2020 Harley-Davidson Softail Slim FLSL
2018-2019 Harley-Davidson Softail Fat Bob FXFB
2018-2019 Harley-Davidson Softail Fat Boy FLFB
2018-2019 Harley-Davidson Softail Breakout FXBR
2018-2019 Harley-Davidson CVO Road Glide Custom FLTRXSE
2017-2020 Harley-Davidson Tri Glide Ultra Classic FLHTCUTG
2017-2020 Harley-Davidson Road King Special FLHRXS
2017-2020 Harley-Davidson Road Glide Special FLTRXS
2017-2020 Harley-Davidson Electra Glide Ultra Limited FLHTK
2017-2020 Harley-Davidson CVO Electra Glide Ultra Limited FLHTKSE
2017-2020 Harley-Davidson Freewheeler FLRT
2017-2020 Harley-Davidson Street Glide Special FLHXS
2017-2020 Harley-Davidson Road Glide Custom FLTRX
2017-2019 Harley-Davidson Electra Glide Ultra Limited Low FLHTKL
2017-2019 Harley-Davidson Street Glide EFI FLHX
2017-2019 Harley-Davidson Road King EFI FLHR
2017-2019 Harley-Davidson Road Glide Ultra FLTRU
2017-2019 Harley-Davidson Electra Glide Ultra Classic EFI FLHTCUI
2017-2019 Harley-Davidson CVO Street Glide FLHXSE
2017-2018 Harley-Davidson Electra Glide Police FLHTPI

 

SPECS: Water Cooled 310-1108A

PRODUCT NAME POWER PACKAGE
TYPE ENGINE
FINISH CHROME
COLOR/FINISH BLACK GRANITE / HIGHLIGHTED FINS
BORE SIZE 4.250″
COMPRESSION RATIO 11.1:1
CAM DRIVE TYPE GEAR
COOLING SYSTEM WATER COOLED
UNITS KIT
RIDING STYLE STREET

FITMENTS:

2020 Harley-Davidson Softail Low Rider S FXLRS
2020 Harley-Davidson CVO Tri Glide FLHTCUTGSE
2020 Harley-Davidson Road Glide Limited FLTRK
2020 Harley-Davidson Road King EFI FLHR
2020 Harley-Davidson CVO Street Glide FLHXSE
2020 Harley-Davidson Street Glide EFI FLHX
2020 Harley-Davidson Electra Glide Standard EFI FLHTI
2020 Harley-Davidson CVO Road Glide Custom FLTRXSE
2020 Harley-Davidson Softail Standard FXST
2019-2020 Harley-Davidson FXDR 114
2019-2020 Harley-Davidson Electra Glide Police FLHTPI
2019 Harley-Davidson Electra Glide Standard EFI FLHTI
2018-2020 Harley-Davidson Softail Street Bob FXBB
2018-2020 Harley-Davidson Softail Slim FLSL
2018-2020 Harley-Davidson Softail Low Rider FXLR
2018-2020 Harley-Davidson Softail Fat Bob 114 FXFBS
2018-2020 Harley-Davidson Softail Heritage Classic FLHC
2018-2020 Harley-Davidson Softail Sport Glide FLSB
2018-2020 Harley-Davidson Softail Breakout 114 FXBRS
2018-2020 Harley-Davidson Softail Deluxe FLDE
2018-2020 Harley-Davidson Softail Heritage Classic 114 FLHCS
2018-2020 Harley-Davidson Softail Fat Boy 114 FLFBS
2018-2019 Harley-Davidson Softail Breakout FXBR
2018-2019 Harley-Davidson Softail Fat Boy FLFB
2018-2019 Harley-Davidson Softail Fat Bob FXFB
2018-2019 Harley-Davidson CVO Road Glide Custom FLTRXSE
2017-2020 Harley-Davidson Tri Glide Ultra Classic FLHTCUTG
2017-2020 Harley-Davidson Road Glide Special FLTRXS
2017-2020 Harley-Davidson Road King Special FLHRXS
2017-2020 Harley-Davidson CVO Electra Glide Ultra Limited FLHTKSE
2017-2020 Harley-Davidson Street Glide Special FLHXS
2017-2020 Harley-Davidson Electra Glide Ultra Limited FLHTK
2017-2020 Harley-Davidson Freewheeler FLRT
2017-2020 Harley-Davidson Road Glide Custom FLTRX
2017-2019 Harley-Davidson Electra Glide Ultra Limited Low FLHTKL
2017-2019 Harley-Davidson Street Glide EFI FLHX
2017-2019 Harley-Davidson Road King EFI FLHR
2017-2019 Harley-Davidson Road Glide Ultra FLTRU
2017-2019 Harley-Davidson Electra Glide Ultra Classic EFI FLHTCUI
2017-2019 Harley-Davidson CVO Street Glide FLHXSE
2017-2018 Harley-Davidson Electra Glide Police FLHTPI

 

 

Additional information

Weight 47 lbs
Dimensions 28 × 21 × 13 in
Fitment

See Current Fitments In Product Description

Finish

HIGHLIGHTED FINS / BLACK GRANITE, HIGHLIGHTED FINS / WRINKLE BLACK, HIGHLIGHTED FINS / WRINKLE BLACK / BLACK GRANITE

Options

Oil Cooled Engine, Water Cooled Engine

BRAND

S&S