Ferrea 5000 Series Hi Performance Exhaust Valve - SB Chevy - 1.600", 11/32" Stem Diameter, 4.935" Overall Length - (Set of 8) NItrous Oxide Pressure Gauge User adjustable radial display scaling

User adjustable radial display scaling allows for fine tuning of tachometer operating range to match the specific characteristics of your engine

Filters allow excess fuel to evacuate the injection lines once engine is shut down to help prevent fuel from entering the cylinders

Fits First-Gen GM F-body and GM X-body

one piece suit is built as an addition to the G-FORCE Racing Gear suit line in order to offer another option to the single layer market

Ferrea 5000 Series Hi Performance Exhaust Valve - SB Chevy - 1.600", 11/32" Stem Diameter, 4.935" Overall Length - (Set of 8) NItrous Oxide Pressure Gauge User adjustable radial display scalingThe 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