80 inch Evolution Piston Kit .030 Oversize **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...

80 inch Evolution Piston Kit .040 Oversize **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...

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...

80 inch Overhead Valve Flywheel Assembly Special 80 inch flywheel assembly is used for generator case sets only. This assembly features a thick side sprocket shaft side flywheel and narrow pinion side flywheel and replaceable pinion & sprocket shafts. FITS...

80 inch Overhead Valve Piston Set .010 Oversize **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/Piston Fitment.pdf FITS Harley Davidson...

80 inch Overhead Valve Piston Set .020 Oversize **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/Piston Fitment.pdf FITS Harley Davidson...

80 inch Overhead Valve Piston Set .030 Oversize **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/Piston Fitment.pdf FITS Harley Davidson...

80 inch Overhead Valve Piston Set .040 Oversize **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/Piston Fitment.pdf FITS Harley Davidson...

80 inch Shovelhead Cylinder Piston Kit Set of two. For stock stroke only. They are ready to run and will require break-in. Please refer to proper shop manual for suggestions on break-in. For 1979-1985 Shovelheads. Order head base gasket separately....

80 inch Shovelhead Front Cylinder GME front replacement cylinder is sold each without piston. The use of Colony 12 point Head Bolts 8714-20 chrome or 8618-20 black and cylinder base nuts 8600-8 chrome or 8601-8 black will allow extra clearance...

80 inch Shovelhead Front Cylinder Sold each. Cylinders are 88.86mm bore with + or - .005mm range of tolerance and must be honed to standard size for proper fit. Pistons are not included. May require the use of a cylinder...

80 inch Shovelhead Rear Cylinder GME 80 inch rear replacement cylinder is sold each without piston. The use of Colony 12-point Head Bolts or black and cylinder base nuts chrome or black will allow extra clearance for tightening when necessary...

80 inch Shovelhead Rear Cylinder Cylinders are 88.86mm bore with + or - .005mm range of tolerance. Cylinder has a hole in the base. Pistons are not included. May require the use of a cylinder base nut set available separately....

80 inch ULH Front and Rear Cylinder Kit Standard size fitted. Ready to install. Cylinders feature casting hallmarks around the base. *NOTE: Must order valves springs and covers separately. **NOTE: Includes standard valve guides installed. Measurements: Weight: 56.2 lbs Tech...

80 inch ULH Side Valve Cylinder Set Order springs and valves separately. Cylinders are 13 fin style that has the valve guides and intake manifold nipples installed. *NOTE: Valve guides must be reamed to size. Cylinders need to be final...

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...

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...

88 inch Evolution Big Bore Cylinder Black This is 3-5/8 inch black cylinder will have to be honed for final fitment. Case boring will be required for final fitment. Bottom of cylinder spigot is 3.875. Order top end gasket kit...

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....

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....

88 inch Evolution Big Bore Cylinder Silver This 3-5/8 inch silver cylinder will have to be honed for final fitment. Case boring will be required for final fitment. Bottom of cylinder spigot is 3.875. Order top end gasket kit separately....

88 inch Evolution Standard Piston Kit Fits Evolution motors and includes wrist pins lock tabs. Features a 3.625 inch bore size. **Note: Run engine at moderate speeds for at least 500 miles avoiding excessive running in lower gears in order...

883cc Piston Ring Set .020 Oversize Sold as a pair for 2 pistons. FITS Harley Davidson XL 1986 Harley Davidson XL 1987 Harley Davidson XL 1988 Harley Davidson XL 1989 Harley Davidson XL 1990 Harley Davidson XL 1991 Harley Davidson...

883cc Piston Ring Set .030 Oversize Sold as a pair for 2 pistons. FITS Harley Davidson XL 1986 Harley Davidson XL 1987 Harley Davidson XL 1988 Harley Davidson XL 1989 Harley Davidson XL 1990 Harley Davidson XL 1991 Harley Davidson...