Order Status & Returns
Gift Cards
Help Center
1-800-345-4545
Vehicle Info NeededMANLEYPART NUMBER: 660-11717-1
Race Master Exhaust Valve Big Block Chevy
$2358
Ships on 09/09/2026
Lowest Price GuaranteeExhaust Valves11/32'' Valve Stem Diameter
- Race Master Exhaust Valve
- Big Block Chevy
- 1.880'' Diameter (20° dish head)
- 11/32'' (0.3415'') Stem Diameter
- 5.422'' Overall Length (Stock)
- Stainless Steel
- 1/pkg.
- Type: Exhaust Valve XH-426 Material
- Head Diameter: 1.880'
- Stem Diameter: 11/32' / 0.3415'
- Installed Height: Stock
- Overall Length: 5.422'
- Tip Length: 0.250'
- Underhead Angle / Radius: 25° x 3/8'
- Margin: 0.075'
- Seat Width: 0.100'
- Top of Head: 20° Dish
- Weight / Grams: 127
Part TypeValve
BrandMANLEY
Package Height2.6
Package Width2.6
Package Length7.3
Weight0.25 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part Number11717-1
Package Qty1
Package TypeEA
No Questions
No Reviews
Items You Need
![Valve Spring Compressor [Stud Mount]](https://www.jegs.com/images/mini_200/500/555/555-80518.jpg)
![Valve Spring Compressor [Stud Mount]](https://www.jegs.com/images/mini_200/500/555/555-80521.jpg)
Some parts are not legal for use in California or other states with similar laws / regulations
