45 inch WL/G Piston Kit Standard Kit includes hasting rings. The piston measures 2.742 inch with a .002 inch clearance and can be bored out to a maximum of 2.745 inch. Top ring measures 3/32 inch thick and the oil...

883cc to 1200 cc Conversion Piston Set Standard 3.498 inch Piston set has a 9.5:1 compression. Requires cylinder boring only. Instructions: http://www.vtwinmfg.com/Instructions/11/11-0852.pdf FITS Harley Davidson XL 1986 Harley Davidson XL 1987 Harley Davidson XL 1988 Harley Davidson XL 1989 Harley...

Piston Wrist Pin and Lock Kit Wrist pin and lock set for 1948-1985 Tech Notes: Do not install wrist pins without lubricating them first with assembly lube. Refer to applicable service manaual for proper installation methods. FITS Harley Davidson FL...

95 inch Big Bore Twin Cam Cylinder and Piston Kit Pistons are pre fitted to cylinders with head gaskets and can be used with stock heads. No crankcase machining required for installation. Twin Cam 3-7/8 inch Big Bore Cylinder Kit...

95 inch Big Bore Twin Cam Cylinder and Piston Kit No crankcase machining required for installation. 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...

95 inch Big Bore Twin Cam Cylinder and Piston Kit Pistons are pre fitted to cylinders with head gaskets and can be used with stock heads. No crankcase machining required for installation. Twin Cam 3-7/8 inch Big Bore Cylinder Kit...

96 inch Twin Cam Piston Kit 96 inch moly coated piston kit. Pistons are .005 inch oversize and features a 3.750 inch bore. FITS Harley Davidson FLST 2007 Harley Davidson FLST 2008 Harley Davidson FLST 2009 Harley Davidson FLST 2010...

883cc to 1200cc Cylinder and Piston Conversion Kit Silver Gaskets not included with kit. Order rocker box gasket set separately. Measurements: Cylinder Size: 3.4995-3.5 Tech Notes: Does not require any machining Suggested to use with #15-0389 V-Twin Head Base Gasket...

883cc to 1200cc Cylinder and Piston Conversion Kit Black Gaskets not included in kit. Order rocker box gasket set separately. Tech Notes: Does not require any machining Suggested to use with #15-0389 V-Twin Head Base Gasket Kit. Instructions: http://www.vtwinmfg.com/Instructions/MS/Piston Fitment.pdf...

883cc to 1200cc Cylinder and Piston Conversion Kit STD Gaskets not included in kit. Order gaskets separately. Measurements: Cylinder Size: 3.5055 Tech Notes: Suggested to use with #15-0389 V-Twin Head Base Gasket Kit. Instructions: http://www.vtwinmfg.com/Instructions/MS/Piston Fitment.pdf FITS Harley Davidson XL...

M8 Big Bore Black Cylinder Set For use with stock 4.375 inch flywheels and does not requires case boring. *NOTE: Must order piston set separately. Measurements: Spigot O.D.: 4-3/8 inches Tech Notes: Required to use with #11-9983 M-8 Wiseco Piston...

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...

Piston Kit .080 Oversize Pistons have a steel expansion control strut cast as original. FITS Harley Davidson G 1929 Harley Davidson G 1930 Harley Davidson G 1931 Harley Davidson G 1932 Harley Davidson G 1933 Harley Davidson G 1934 Harley...

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....

883cc to 1200cc Conversion Piston Set Standard 3.498 inch Piston set has a 9.5:1 compression. Piston to cylinder wall clearance is .0015 minimum to .0022 maximum with .002 preferred. No head work is necessary on this Big Bore kit. **Note:...

80 inch Evolution Piston Kit Standard Features 3.4985 inch bore. **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. *NOTE: Install pistons with...

883cc to 1200cc Conversion Piston Set .005 Oversize Piston set is .005 over sized and has a 9.5:1 compression. **Note: Run engine at moderate speeds for at least 500 miles avoiding excessive running in lower gears in order to properly...

80 inch Evolution Piston Kit .005 **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. *NOTE: Install pistons with raised bars or on...

45 inch Piston Ring Standard V-Twin Motorshop piston ring standard with 1/8 inch oil ring and 3/32 inch compression ring for 45 inch engine. FITS Harley Davidson G 1937 Harley Davidson G 1938 Harley Davidson G 1939 Harley Davidson G...

45 inch Piston Ring .010 Oversize V-Twin Motorshop piston ring .010 with 1/8 inch oil ring and 3/32 inch compression ring for 45 inch engine. FITS Harley Davidson G 1937 Harley Davidson G 1938 Harley Davidson G 1939 Harley Davidson...

45 inch Piston Ring .020 Oversize V-Twin Motorshop piston ring .020 with 1/8 inch oil ring and 3/32 inch compression ring for 45 inch engine. Tech Notes: Requires to use with #40-1777 Zicad Plated Oil Line Set FITS Harley Davidson...

45 inch Piston Ring .040 Oversize V-Twin Motorshop piston ring .040 with 1/8 inch oil ring and 3/32 inch compression ring. FITS Harley Davidson G 1937 Harley Davidson G 1938 Harley Davidson G 1939 Harley Davidson G 1940 Harley Davidson...