Big Bore Kits

TC 106 BIG BORE KIT SILVER

TC 97 BIG BORE KT BLACK

TC 97 BIG BORE KT SILVER

Twin Power 17-Up M8 with 4.25 Big Bore Kit 4.25in Head/Base Gasket Kit .030-.014 MLS

Cylinder Head and Base Gasket Kits for 124" and 128", oil-cooled or water-cooled models, with 4.25" Big Bore Cylinders. This is a strictly bolt-on kit, as the special gaskets eliminate the need to...