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:
- Exhaust
- Head Diameter (in.):
- 1.600 in.
- Head Diameter (mm):
- 40.640mm
- Stem Diameter (in.):
- 0.3125 in.
- Stem Diameter (mm):
- 7.9375mm
- Length (in.):
- 5.060 in.
- Length (mm):
- 128.524mm
- 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:
- 14 Degree Flo. +.150
- Make:
- Chevrolet
- Engine Family:
- Chevy small block Gen I
