Air Flow Research, Bullitt 14° Ford BB (429-460) Aluminum Heads
Features a different port shape with a more consistent cross-sectional area and new valve positioning compared to the factory pieces. This new clean-sheet design improves engine response, providing increases in horsepower and torque. Available in 280cc, 295cc and 315cc versions with 75cc or 85cc combustion chambers. A raised exhaust port 0.250" is also available. Assembled with stainless steel valves, PAC valve springs, 10° chrome moly retainers and machined locks, 7/16" rocker studs, and 3/8" guide plates. |