Straight-stemmed XH-424 stainless exhaust valves and NK-841 stainless intake valves have chrome stems, hard tips, swirl-pol-ished underhead areas, and fully machined combustion faces. Street Master valves are an excellent choice for mild perfor-mance engines. Sold in sets of eight.
- Usage:
- Intake
- Head Diameter (in.):
- 1.940 in.
- Head Diameter (mm):
- 49.276mm
- Stem Diameter (in.):
- 0.3410 in.
- Stem Diameter (mm):
- 8.6600mm
- Length (in.):
- 4.911 in.
- Length (mm):
- 124.739mm
- Undercut Stem:
- Yes
- Swirl-Polished:
- Yes
- Tip Length (in.):
- 0.250 in.
- Tip Length (mm):
- 6.350mm
- Material:
- NK-841 stainless steel
- Lock Groove Quantity:
- 1-groove
- Lock Groove Style:
- Conventional
- Approximate Weight (g):
- 105
- Head Style:
- 6 degree dish
- Seat Width (in.):
- 0.080 in.
- Quantity:
- Sold as a set of 8.
- Make:
- Chevrolet
- Engine Family:
- Chevy big block Gen V
