107 inch Big Bore Twin Cam Cylinder Kit The cylinders have a 4-1/8 inch bore. Order top end gasket kit separately. Measurements: Sleeve Thickness: .085 inches Tech Notes: The outside diameter of the bottom portion of the sleeve is 4.295inch...

107 inch Big Bore Twin Cam Cylinder Kit Cylinder kit measures 0.993 inch length of the sleeve fits into crankcase. Cylinders have a 4-1/8 inch bore. Total length is 5.912 inch. Order top end gasket kit separately. Measurements: Wrist Pins:...

83 inch Evolution Big Bore Cylinder Kit Includes two cylinders and two domed pistons. Order top end gasket separately. *NOTE: The cylinders are bored and honed to 3.5430 to fit the pistons. Tech Notes: Suggested to use with #15-0414 Head...

83 inch Evolution Big Bore Cylinder Kit Cylinders are aluminum and features a cast in steel sleeve. Kit includes a front and rear piston. No case boring required. *NOTE: Must order top end gasket separately. *NOTE: We suggest to always...

95 inch/103 inch Big Bore Twin Cam Piston Ring Set .005 Can be used on 2000-2006 FXST FLST FXD FLT models. Sold as a pair for 2 pistons.

95 inch/103 inch Big Bore Twin Cam Piston Ring Set Standard Can be used on 2000-2006 FXST FLST FXD and FLT models. Sold as a pair for 2 pistons.

95 inch/103 inch Big Bore Twin Cam Piston Ring Set .010 Can be used on 2000-2006 FXST FLST FXD FLT models. Sold as a pair for 2 pistons.

1800cc 4 inch Big Bore Cylinder The finished honed size of this bore cylinder is 4.005 inch. FITS Harley Davidson FLST 2007 Harley Davidson FLST 2008 Harley Davidson FLST 2009 Harley Davidson FLST 2010 Harley Davidson FLST 2011 Harley Davidson...

88 inch Evolution Big Bore Cylinder Kit Silver Our kit includes two 3-5/8 inch silver cylinders which have been honed for final fitment with Wiseco 9.25:1 compression flat top pistons and rings. Case boring will be required for final fitment....

95 inch Big Bore Twin Cam Cylinder and Piston Kit Twin Cam 3-7/8 inch Big Bore Cylinder Kit increases displacement of Twin Cam 88 (1450) to 95 (1550) cubic inches. These cylinders require no crankcase machining and are finished honed....

93.4 inch Big Bore Flat Top Piston Kit Standard **Note: Run Engine at moderate speeds for at least 500 miles avoiding excessive running in lower gears in order to properly break-in new pistons and rings. Instructions: http://www.vtwinmfg.com/Instructions/MS/Wiseco Piston Inst. Guide...

95 inch Big Bore Twin Cam Cylinder and Piston Kit No crankcase machining required for installation. Does not require flywheel re-balancing. Twin Cam 3-7/8 inch Big Bore Cylinder Kit increases displacement of Twin Cam 88 (1450) to 95 (1550) cubic...

95 inch Big Bore Twin Cam Cylinder and Piston Kit 95 inch Big Bore kit will increase TC-88 engines to 95 inch. Kit includes silver cylinders with 9.3:1 cast moly coated pistons with rings that are pre fitted to cylinders...

Ultima 107 inch Big Bore Front Cylinder Polished Polished 4.000 inch big bore front cylinder for 107 inch engine with 10:1 compression.

Ultima 120 inch Big Bore Rear Cylinder Polished Polished 4.250 inch big bore rear cylinder for 120 inch engine with 9.8:1 compression. Measurements: Bolt Pattern: 4.250 inches

Ultima 120 inch Big Bore Front Cylinder Polished Polished 4.250 inch big bore front cylinder for 120 inch engine with 9.8:1 compression.

Ultima 107 inch Big Bore Rear Cylinder Polished Polished 4.000 inch big bore rear cylinder for 107 inch engine with 10:1 compression.

Panhead Cylinder Heads 3-5/8 inch Big Bore Heads are assembled with cast iron guides valve stem seals nitrated valves Shovelhead intake and Panhead exhaust stock style springs and retainers. Features Shovelhead exhaust pipe flange and intake ports accept. Shovelhead o-ring...

Panhead Cylinder Heads 3-5/8 inch Big Bore Heads are assembled with cast iron guides valve stem seals nitrated valves Shovelhead intake Panhead Exhaust and stock style springs and retainers. Features Shovelhead exhaust pipe flange and intake ports accept Shovelhead o-ring...

High Torque 7/16 inch Big Bore Cylinder Base Nut Chrome Chrome high torque 7/16 inch cylinder base nut is for 1966-1984 FL 1971-1984 FX 1979-1983 FLT and 1982-1983 FXR models. Measurements: Length: 1 inches

Big Bore 12 Pt Head Bolt Kit Chrome Big Bore 12 pt headbolt kit in Chrome. FITS Harley Davidson FL 1948 Harley Davidson FL 1949 Harley Davidson FL 1950 Harley Davidson FL 1951 Harley Davidson FL 1952 Harley Davidson FL...

Big bore kit with extra displacement (105 instead of 85). For plenty of torque and even more peak power. Includes the cylinder, piston, rings, cylinder head, CDI (ecm), sizes 40 and 42 pilot jets, and a NRJD needle jet. It also...