S&S Cycle 106-4570 S&S® Performance Replacement Low Compression 82cc Cylinder Heads For 1984-'99 HD® Big Twins - Wrinkle Black Powdercoat Finish SHOT GLASS Drag Specialties DS-325385

Drag Specialties DS-325385

all DOT and SAE compliant

the Del Rio maintains its sleek

Arlen Ness 50-339

S&S Cycle 106-4570 S&S® Performance Replacement Low Compression 82cc Cylinder Heads For 1984-'99 HD® Big Twins - Wrinkle Black Powdercoat Finish SHOT GLASS Drag Specialties DS-325385S&S Cycle 106 4570 S&S Performance Replacement cylinder heads for 1986 '99 HD Evolution big twin engines are designed to be compatible with a stock style flat topped piston. This set has a slightly larger 82cc combustion chamber making them idea for larger displacement applications, producing a managable compression ratio. These heads are original equipment on S&S V96 and V80 engines. Larger than stock 1. 900" intake and 1. 575" exhaust valves provide