Description
Manley designed these 11737-8 Extreme Duty Exhaust Valves for Big Block Chevy engines. Manufactured from XH-432 XtremeAlloy Stainless Steel, these valves have more hot hardness and high temperature strength than any competitive offering! Featuring chrome stems and hardened valve tips, they are also swirl polished and fully machined.
These valves are also a great choice for Top Fuel, Funny Car and Marine applications!
Manley 11737-8 Extreme Duty Exhaust Valves Specs:
- Valve Material: XH-432 XtremeAlloy
- Valve Head Diameter: 1.880 in.
- Valve Stem Diameter: 0.3415 in.
- Overall Valve Length: 5.522 in.
- Valve Seat Width: 0.085 in.
- Valve Tip Length: 0.250 in.
- Valve Head Style: 9-degree dish
- Undercut Stem: No
- Swirl Polished: Yes
- Lock Groove Quantity: 1-groove
- Lock Groove Style: Conventional
- Weight: 133 grams
- Quantity: Sold as a set of 8
Manley Extreme Duty Valves –Better By Design!
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