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Exhaust Valves1.900'' Valve Diameter 5/16'' Valve Stem Diameter
- Severe Duty Exhaust Valves
- Big Block Chevy
- 1.900'' Diameter
- 5/16'' (0.3110'') Stem Diameter
- 5.422'' Overall Length (Stock)
- Stainless Steel
- 8/pkg.
Installation Note: These 5/16' (.311') stem valves are ONLY available with Bead Loc keeper grooves. Bead Loc valve locks are REQUIRED.
- Type: Exhaust Valve XH-428 Material
- Head Diameter: 1.900'
- Stem Diameter: 5/16' / 0.3110'
- Installed Height: Stock
- Overall Length: 5.422'
- Tip Length: 0.250'
- Underhead Angle / Radius: 12° x 3/8'
- Margin: 0.075'
- Seat Width: 0.100'
- Top of Head: 7° Dish
- Weight / Grams: 108
Part TypeValve
BrandMANLEY
Package Height2.7
Package Width9.2
Package Length11.8
Weight2.46 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part Number12817-8
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
