The Melling 10553ST is a standard-volume, standard-pressure replacement oil pump for the Small Block Chevy. Built with a 5/8-inch inlet. It uses a cast iron housing with billet steel shark-tooth gears. Melling classifies this pump as Standard Volume and Standard Pressure, making it a direct-fit choice for rebuilds and performance builds on this engine family.
Specifications:
- Volume / Pressure: Standard Volume / Standard Pressure
- Manufactured volume: Standard Volume
- Manufactured pressure: 70 PSI (green spring)
- Optional pressure springs: 58 PSI (yellow) spring
- Gear/rotor type: Billet steel shark-tooth gears
- Housing: Cast iron
- Engine family: Small Block Chevy
- Part number: 10553ST
FAQ
What engine does the Melling 10553ST fit?
The 10553ST is a replacement oil pump for the Small Block Chevy. Confirm your engine family and pickup configuration before ordering.
Is this a standard, high-volume, or high-pressure pump?
Melling classifies the 10553ST as Standard Volume and Standard Pressure, rated at 70 PSI (green spring).
Is this a direct replacement for the stock pump?
Yes. The 10553ST is built as a standard-volume, standard-pressure replacement for the Small Block Chevy and matches the stock oiling specification for stock and mild rebuilds.
Does this pump include a pickup tube?
Melling lists this pump without a pickup in the box unless otherwise noted. Confirm you have the correct pickup for your pan and block, and check pickup-to-pan clearance during assembly.
