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Vehicle Info NeededMANLEYPART NUMBER: 660-11345-1
Race Master Exhaust Valve Small Block Chevy
$2532
Ships on 09/09/2026
Lowest Price GuaranteeExhaust Valves5/16'' Valve Stem Diameter
- Race Master Exhaust Valve
- Small Block Chevy
- 1.625'' Diameter
- 5/16'' (0.3110'') Stem Diameter
- 5.240'' Overall Length (+.300)
- Stainless Steel
- 1/pkg.
These 5/16' (.3110') stem valves are ONLY available with Bead Loc keeper grooves. Bead Loc valve locks are REQUIRED.
- Type: Exhaust Valve XH-426 Material
- Head Diameter: 1.625'
- Stem Diameter: 5/16' / 0.3110'
- Installed Height: +.300' Longer
- Overall Length: 5.240'
- Tip Length: 0.290'
- Underhead Angle / Radius: 15° x 1/2'
- Margin: 0.080'
- Seat Width: 0.100'
- Top of Head: 9° Dish
- Weight / Grams: 99
Part TypeValve
BrandMANLEY
Package Height2.5
Package Width2.5
Package Length7.0
Weight1.0 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part Number11345-1
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
