Ferrea 5000 Series Hi Performance Intake Valve - SB Chevy - 1.940", 11/32" Stem Diameter, 4.910" Overall Length - (Set of 8) LT5JAB the X1 is designed to

the X1 is designed to span the entire range of applications providing dependable fuel pressure regulation

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Ferrea 5000 Series Hi Performance Intake Valve - SB Chevy - 1.940", 11/32" Stem Diameter, 4.910" Overall Length - (Set of 8) LT5JAB the X1 is designed toThe 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