MSD Tach Drive Adapter, Brass, Converts 3/16 in. to .104 in. Drive # MSD8491 Rate_12 The RPM Air-Gap incorporates the

The RPM Air-Gap incorporates the same race-winning design that's been used on our Victor Series competition intakes for decades

For example

000 RPM Rated

4175 Models

750 in # 613-1750

MSD Tach Drive Adapter, Brass, Converts 3/16 in. to .104 in. Drive # MSD8491 Rate_12 The RPM Air-Gap incorporates theMSD Tach Drive Adapter, Brass, Converts 3 16 in. to . 104 in. Drive # MSD8491 Tach Drive Adapter, Converts 3 16 in. to . 104 in. Drive, Brass, Each MSD tach drive adapters are designed to fit MSD distributors using the 3 16 in. tang drive cable. They are made of bronze, and feature a 0. 104 inch square drive (Corvette style) drive cable end adapted to the 3 16 in. tang drive used on all tach drive MSD distributors.