Honda CT70 Z50 ATC70 6 Volt Engine High Volume Oil Pump

High Volume Oil Pump

A must-have upgrade for big bore and performance engine builds. The High Volume Oil Pump increases oil flow throughout the engine to help support higher temperatures, increased RPM, and larger displacement setups.

Highly recommended when using a big bore kit, stroker setup, oil cooler, or any performance-oriented engine combination where additional oil circulation becomes important.

To properly take advantage of the increased flow capacity, the engine case oiling outlet must be enlarged an additional 2mm. Running the larger pump without enlarging the passage can restrict flow and reduce the effectiveness of the upgrade.

We also offer the correct 2mm oil passage enlarging drill bit here to make the modification easy while the engine is apart.

Full installation instructions can be found here:
Download Installation Instructions PDF

Simple upgrade. Cheap insurance for high-performance engines.

Installation Notes

• Requires 2mm drill-out of the engine case oiling outlet
• Engine disassembly required for installation
• Recommended during big bore kit installation or engine rebuilds
• Clean oil passages thoroughly after drilling
• Prime oil system before first startup

Features

• Increased oil flow over stock pump
• Helps support high-performance engine builds
• Recommended for big bore and stroker applications
• Improves lubrication at higher RPM and temperatures
• Direct replacement style installation