BBC 1.88" Dia 5.352" Nitro Black Performance Exh Valves Big Block Chevy 01-3004.
set of (8) Engine Pro 01-3004 Nitro Black Performance Exhaust Valves for Big Block Chevrolet Engines
Valve Specifications:
- Type: Exhaust
- Head Diameter: 1.880"
- Stem Diameter: 3/8"
- Installed Height: Stock
- Overall Length: 5.352
- Tip Length: .250"
Nitro Black Valves:
- 21-4N high strength stainless alloy
- Swirl polished for improved flow characteristics
- Fully undercut stem
- Hard wafer tip
- One piece forging
- Proprietary liquid nitriding process that creates a valve that is smoother, stronger and more corrosion resistant than traditional chromed valves
- Deep nitriding provides better ductility under the hard nitrided layer as proven in rotating-bending fatigue tests
- Valve is less likely to break even if contacted by the piston
- Greater surface hardness means less valve guide wear
- Improved corrosion resistance even with exotic fuels
- Our nitriding process is much cleaner than chroming- it’s better for the environment
