Oil Cooler Adapter 6AN ORB Oring In/Out Port Plate LS1 LSX LS3 LS LS2 LS3 551600

Oil Cooler Adapter Port Plate for LS Engines

This oil cooler adapter port plate for LS engines, cross-referenced with part number 551600, provides plumbing entry points for external oil cooling systems.

Overview

The oil cooler adapter port plate for LS engines is a precision-machined oil bypass block designed to route oil to an auxiliary cooling unit. This oil cooler adapter port plate for LS engines utilizes leak-free O-ring seals to manage high oil pressures during performance driving. It is intended for custom engine builders and automotive enthusiasts aiming to manage engine temperatures.

Built For Performance

• CNC-machined from lightweight billet aluminum for high strength
• Features dual 6AN ORB ports for reliable hose connections
• Equipped with high-temperature O-ring seals to prevent oil leaks
• Low-profile design minimizes clearance issues with exhaust manifolds

Fits These Machines

• for GM LS1 Engines
• for GM LS2 Engines
• for GM LS3 Engines
• for GM LSX Engines

On-The-Job Use

• Plumbing external oil cooling systems on custom builds
• Replacing factory bypass plates during oil system service
• Maintaining optimal oil viscosity during high-performance track use

Specs At A Glance

Good To Know

Q: Why use ORB ports instead of traditional NPT threads? A: ORB, or O-ring Boss, ports use a rubber seal instead of tapered threads to prevent leaks. This minimizes the risk of cracking the aluminum plate during tightening.

Q: Does this plate include a built-in thermostat? A: No, this is a direct flow-through bypass adapter plate. For cold climates, an inline thermostat may be required to regulate oil temperatures.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.