The Melling 22301 is a hydraulic flat tappet camshaft for Small Block Chevy engines. It delivers .480 inch intake and .480 inch exhaust valve lift with 230 degrees intake and 230 degrees exhaust duration at .050 inch tappet lift. It is ground for a hydraulic flat tappet valvetrain and uses standard hydraulic lifters.
Specifications:
- Engine family: Small Block Chevy
- Grind type: Hydraulic flat tappet
- Valve lift (intake/exhaust): .480 in / .480 in
- Duration at .050 in (intake/exhaust): 230° / 230°
- Advertised duration (intake/exhaust): 287° / 287°
- Lobe centerline: intake 107°, exhaust 111°
- Part number: 22301
Break-in: Flat tappet camshafts require a proper break-in. Coat the cam lobes and lifter faces with the supplied assembly lubricant, prime the oiling system, and run the engine between 2,000 and 2,500 RPM for 20 to 30 minutes at initial start-up. Use a break-in oil with a high level of ZDDP (zinc and phosphorus) anti-wear additive.
FAQ
What engine does the Melling 22301 camshaft fit?
The 22301 is designed for Small Block Chevy engines. Confirm cylinder head, valvetrain, and compression match the grind before purchase.
What are the lift and duration specs for the 22301?
It provides .480 inch intake and .480 inch exhaust valve lift with 230 degrees intake and 230 degrees exhaust duration measured at .050 inch tappet lift.
Is this a flat tappet or roller camshaft?
This is a hydraulic flat tappet camshaft. It must be broken in with assembly lube and a high-zinc (ZDDP) oil, and it uses standard hydraulic flat tappet lifters.
