Ferrea Competition Plus Valves have built a reputation as the industry's most reliable extreme duty valve. To manufacture the valves they use special aerospace quality alloys, including the EV8-Z18, which provides high tensile strength. An exclusive two-step slow forging process ensures proper grain flow and virtually eliminates any damage to thematerial structure. The valves are then heat-treated and stress-relieved over a 48-hour period, which is the crucial base of our molecular integrity. These valves feature avionics-quality hard chrome along with a specially applied hard tip.
- Usage:
 - Intake
 - Head Diameter (in.):
 - 2.125 in.
 - Head Diameter (mm):
 - 53.975mm
 - Stem Diameter (in.):
 - 0.344 in.
 - Stem Diameter (mm):
 - 8.7376mm
 - Length (in.):
 - 5.160 in.
 - Length (mm):
 - 131.064mm
 - Undercut Stem:
 - N/A
 - Swirl-Polished:
 - N/A
 - Tip Length (in.):
 - 0.250 in.
 - Tip Length (mm):
 - 6.350mm
 - Material:
 - Stainless Steel
 - Lock Groove Quantity:
 - N/A
 - Lock Groove Style:
 - N/A
 - Approximate Weight (g):
 - N/A
 - Head Style:
 - N/A
 - Seat Width (in.):
 - N/A
 - Quantity:
 - Sold as a set of 8.
 - Notes:
 - 12 Degree Super Flo-Brodix PONTIAC. +.200
 - Make:
 - Chevrolet
 - Engine Family:
 - Chevy small block Gen I