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 500" diameter shims of various

500" diameter shims of various thickness

Bottom Feed Port: 1/2" N

from 250 to 2000 HP

axle tubes to keep birdcages

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 500" diameter shims of variousThe 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