ZIPPERS PERFORMANCE BIG BORE KITS HARLEY TWIN CAMS 99-06 MAGNUM also USFS approved spark arrestor

also USFS approved spark arrestor

ARC (Advanced Radiant Cooling) Technology for maximum cooling efficiency

Finished off with only the best 6061 billet aluminum spike end caps and collars

oil temperature (sensor included)

ZIPPERS PERFORMANCE BIG BORE KITS HARLEY TWIN CAMS 99-06 MAGNUM also USFS approved spark arrestorZIPPERS PERFORMANCE BIG BORE KITS HARLEY TWIN CAMS 99 06 SELECT IN OPTIONS KITS FOR 1999 2006 TWIN CAM ENGINES Factory 1999 2006 Twin Cam engines are equipped with 4 stroke crankshafts. The factory cylinder bore size of 3 3 4 yields the 88 displacement. We can turn your 88 engine into either a 95 or a 98, simply by resizing the factory cylinders.