JAMES, EXHAUST GASKET & MOUNT KIT. COPPER GASKETS 977934 Must be used with 21"

Must be used with 21" wheels

Manley recommends the use of the included earlier style Viton oil seals and not the oil seal-lower collar set-up as used by The Factory

Will fit all 53-84 Big Twin models but earlier 53-E76 model OEM screws do not have the flat base screws that are required for the late model tappet blocks

Includes 18 custom Cap nuts

Size of bore 8 - 13 mm

JAMES, EXHAUST GASKET & MOUNT KIT. COPPER GASKETS 977934 Must be used with 21"Incl. round copper crush ring style gaskets, 2 retaining rings, 4 washers and 4 chrome plated acorn nuts. Note: May require shortening of the stock M8 exhaust studs due to the acorn nuts used in this kit. Fits: > 84 20 B. T.; 86 20 XL; 08 12(NU)XR1200; 87 10(NU)Buell XB