107" to 124" Big Bore Kit: 310-1057

• Wrinkle Black Finish
• Available With or Without Fin Highlighting
• 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 & 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
• Chrome or Gloss Black Pushrod Tubes Available

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:

• High Performance Conical Single Wire Spring
• Includes Top Collars, Keepers, & Valve Seals/Bottom Collars