BBC 2.3" Dia 5.478" Nitro Black Perf Intake Valves Big Block Chevy 01-3013+250.
set of (8) Engine Pro 01-3013+250 Nitro Black Performance Intake Valves for Big Block Chevrolet Engines
Valve Specifications:
Type: Intake
Head Diameter: 2.3"
Stem Diameter: 11/32"
Installed Height: +250
Overall Length: 5.478
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
