FMBP 10355HV Engine Oil Pump

Overview

The Melling 10355HV is a high volume engine oil pump built for GM LS applications that need consistent oil delivery under demanding RPM conditions. It is a standard replacement upgrade over the M355 and uses a cast aluminum housing with a cast iron cover for added durability.

Compatible with Chevrolet Camaro, Chevrolet Silverado 1500, and Cadillac CTS applications, this pump is engineered for performance-focused builds that need controlled pressure and dependable flow. The 10355HV part number is also associated with a standard pressure setup and adjustable bypass pressure.

Key Features

• High volume design with 20% more output than stock
• Adjustable bypass pressure with optional spring settings
• Cast aluminum body with anodized finish
• Cast iron phosphate-coated cover for added wear resistance
• Includes seals and O-rings for the oil pickup tube assembly
• Individually tested for pressure and flow under engine operating conditions

Detailed Description

The Melling 10355HV oil pump is manufactured for GM LS engines and is intended for applications where stable oil pressure and increased volume are important. Its rotary pump design uses a steel rotor, a crankshaft drive, and a pressure-adjustable relief valve with a screw-in plug. The pump is built in the USA and is a standard volume upgrade path from the M355, while the 10355HV part number identifies the high volume configuration.

For fitment, this pump covers a wide range of GM vehicles, including Chevrolet Camaro, Chevrolet Silverado 1500, and Cadillac CTS models across multiple years. It also fits performance and truck applications such as Chevrolet Tahoe, GMC Yukon, and Pontiac Grand Prix, making it a direct choice for LS-based engine service or rebuild work.

What It Helps Address

• Low or inconsistent oil pressure in performance engine builds
• Oil delivery concerns at higher engine speeds
• Wear-related replacement needs for an aging pump
• Pressure tuning requirements using alternate spring settings
• Pickup tube sealing issues addressed by included O-rings and seals

Installation Notes and Tips

Verify GM LS engine compatibility before installation and confirm the pickup screen and pump cover arrangement match your build. The pump uses a crankshaft drive and four mounting holes, with a 1.10-inch bolt-on screen specification. The 10355HV part number should be matched to the intended pressure and volume requirements of the engine.

Quality Assurance

Melling tests each pump for pressure and flow under actual engine operating conditions. The anodized housing, phosphate-coated cover, and USA manufacturing support consistent build quality for GM LS service and performance applications.