S&S M8 107-114 to 128! big bore kit with new oil pump tensioners camchest cams pushrods etc Power Pack, Water Cooled, 4.250" Bore, 4-3/8" Stroke .Heres TOP END first . almost DOUBLE youtr BHP to 130 + BHP !!!
114" to 128" Big Bore Kit:
Wrinkle Black or Black Granite Finish
Available With or Without Fin Highlighting for Wrinkle Black
Bolt-On Kit — No Case Machining Required
4.250" Bore
Forged Pistons
11.1:1 Compression Ratio
Oil Pump/Cam Plate:
Precision Machined from Billet Aluminum
Passage Plugs Removable for Servicing
Independent Scavenge Sections for Flywheel Cavity & 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 & Scavenge Side
Pressure Relief Valve is Adjustable with Unit Installed in Engine
Pushrods:
Quickee Pushrods with chrome covers
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 & High rpm Situations
Cam:
S&S 550 Cam- Designed for Big Bore Applications
Available in Both Gear Drive & Chain Drive Variations
Gear Drive Kits Provide Improved Cam Timing Accuracy & Eliminate Stock Chain Tensioner
Gear Drive Kits Include Outer Drive Gears
Valve Springs:
Work well with cams up to .605 lift
High Performance Conical Single Wire Spring
Includes Top Collars, Keepers, & Valve Seals/Bottom Collars