Ferrea 5000 Series Hi Performance Exhaust Valves - SB Ford - 11/32" Stem, 1.550" Head Size, 5.075" Overall Length - 12 Under Cut-Dish Head - (Set of 8) HASZ21CL Fits Detroit Speed SpeedMax Front

Fits Detroit Speed SpeedMax Front Suspension System

Popular "044 Style" physical configuration but with AN inlet & discharge port connections

Bottom Feed Port: 1/2" N

axle tubes to keep birdcages

and 200R4 transmissions (Fits Transmissions w/ 1/4-18 NPSM Straight Threads)

Ferrea 5000 Series Hi Performance Exhaust Valves - SB Ford - 11/32" Stem, 1.550" Head Size, 5.075" Overall Length - 12 Under Cut-Dish Head - (Set of 8) HASZ21CL Fits Detroit Speed SpeedMax FrontThe 5000 Series Valves have become the alternative for performance engine builders that use competitors "street" or "performance valve". These valves are produced in Ferrea's CNC centers allowing tight tolerances and cost effective design. They feature a one piece forging made from stainless steel, a special heat treatment process, hard chrome stems, and hard tip. Most applications are available in an undercut stem and dished head, while other