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Vehicle Info NeededMELLINGPART NUMBER: 689-M55HV
M-55HV Oil Pump for Small Block Chevy, High-Volume/Standard Pressure
$5399
Ships on Sep 14, 2026
Lowest Price Guarantee![Oil Pump for Small Block Chevy [High Volume]](https://www.jegs.com/images/mini_200/500/555/555-23502.jpg)
GM/Chevy Small Block
Oil PumpSmall Block Chevy High-Volume/Standard Pressure Cast Iron
Melling M55HV High-Volume Oil Pump FAQs
Melling M-55HV Oil Pump Features:
- Volume Over Stock: 25 percent
- Drive Type: Drive Shaft
- Gasket Included: No
- Height: 4.43 in.
- Width: 3.19 in.
- Material: Cast Iron
- Mounting Hole Diameter: 0.25 in.
- Mounting Hole Quantity: 2
- Pressure Type: Standard
- Pump Type: Gear
- Volume Type: High
FAQ:
What should the oil pump pressure be on a small block Chevy?
- The optimal oil pump pressure for a small block Chevy is around 40-60 PSI, and the Melling M55HV oil pump is engineered to meet these specifications.
What is better, high high-volume or high-pressure oil pump?
- The Melling M55HV high-volume oil pump is ideal for increased flow, and enhancing lubrication. It's a balance; choose based on your engine's needs.
When should I use a high-volume oil pump SBC?
- Utilize the Melling M55HV high-volume oil pump for SBC in performance applications, especially with modified engines requiring additional oil flow for enhanced lubrication.
Will a high-volume oil pump hurt a stock engine?
- The Melling M55HV is suitable for stock engines, providing increased oil flow without causing harm. It's a versatile choice for improved lubrication.
Part TypeOil Pump
BrandMELLING
Package Height4.43 in.
Package Width3.19 in.
Package Length5.9
Weight3.95 PG
Part CategoryReplacement Parts
Drive Shaft IncludedNo
Housing MaterialCast Iron
Mounting Hole Quantity2
Adjustable Bypass PressureNo
Bolts IncludedNo
Spacer IncludedNo
Alternate Pressure Springs IncludedNo
Inlet Size (In.)0.500
O-Ring IncludedNo
Washers IncludedNo
Mounting Hole Diameter0.25 in.
Oil Pump Pressure TypeStandard Pressure
Bushing IncludedNo
Oil Pump TypeGear
Cover MaterialCast Iron
Shaft MaterialNot Applicable
Gear MaterialSteel
Pickup Tube Diameter0.500 in.
FinishRust Preventative
Gasket Or Seal IncludedNo
Cotter Pin IncludedNo
Drive TypeDrive Shaft
Oil Pump Volume TypeHigh Volume
Part FitmentDirect Fit
Grade TypeImproved Design
Timing Cover IncludedNo
Additional Volume Over Stock Percentage25%
Vendor Part NumberM-55HV
Package Qty1
Package TypeEA
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