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![Oil Pump for Big Block Chevy [High Volume]](https://www.jegs.com/images/mini_200/500/555/555-23509.jpg)
GM/Chevy Big Block
- Oil Pump
- Big Block Chevy
- High Volume
Melling 689-M-77HV Features:
Made in USA. Melling high volume oil pumps increase the amount of oil flow by an average of 20% through the engine improving oil pressure at idle providing dependable performance every time in every application. Every Melling high volume oil pump is engineered and assembled to the highest production standards from high quality materials. All Melling high volume oil pumps use the latest in gear and gerotor technology to provide the highest level of quality and performance. High volume gears are machined to close tolerances to ensure proper engine pressure and correct, efficient pump operation. End plates are precision ground for maximum wear resistance. Every Melling oil pump is individually tested for pressure and flow under conditions designed to duplicate actual engine operating conditions.
Part TypeOil Pump
BrandMELLING
Package Height4.51 in.
Package Width4.5 in.
Package Length6.3
Weight5.3 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.)0.750
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 Diameter0.75 in.
FinishRust Preventative
Gasket Or Seal IncludedNo
Cotter Pin IncludedNo
Gear TypeSpur Gear
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-77HV
Package Qty1
Package TypeEA
No Questions
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