These 70mm and 75mm throttle bodies by BBK Performance are cast from the highest quality 356 aluminum. 5-10 horsepower gain can be expected once installed. All new gaskets are included and installation takes about 30 min. To see the installation instructions click HERE. Click HERE to see additional pictures. Note: 1994-1995 Thunderbird 4.6L engine uses the BBK 1703 (75mm) and the 1996-1997 Thunderbird 4.6L engine uses the BBK 1700 (70mm) and 1701 (75mm) throttle body.
