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.):
- 2.165 in.
- Head Diameter (mm):
- 54.991mm
- Stem Diameter (in.):
- 0.3135 in.
- Stem Diameter (mm):
- 7.9629mm
- Length (in.):
- 4.900 in.
- Length (mm):
- 124.460mm
- Undercut Stem:
- N/A
- Swirl-Polished:
- N/A
- Tip Length (in.):
- 0.160 in.
- Tip Length (mm):
- 4.064mm
- Material:
- Stainless Steel
- Lock Groove Quantity:
- N/A
- Lock Groove Style:
- Radius
- Approximate Weight (g):
- N/A
- Head Style:
- N/A
- Seat Width (in.):
- N/A
- Quantity:
- Sold as a set of 8.
- Notes:
- 12 Degree S Flo. Backcut 30 Degree Radius Groove. Special Alloy Stk size
- Make:
- Chevrolet
- Engine Family:
- Chevy small block Gen III/IV (LS-based engines)
