Straight Motor Mount Kit

Straight Motor Mount Kit – Custom Chassis to Head Support for V-Twin Builds

This Straight Motor Mount Kit includes all the high-quality components you need to fabricate a clean, strong motor mount for your V-Twin motorcycle. Designed for custom Harley builds, this kit simplifies the process of creating a rigid connection between your frame and engine heads using a 3" bullet-style blind bung, counterbored head bungs, and round stock.

Ideal for builders working on custom choppers, bobbers, or rigid frame bikes, this kit is compatible with popular SAE head bolt sizes—including 3/8" for Evolution, Evo Sportster, and Twin Cam engines, and 7/16" for Panhead, Shovelhead, and Ironhead motors.

To install, simply bolt the 3" bullet bung to your chassis tab, install the included counterbored bungs into your cylinder heads, then trim and weld the round stock into place. The result is a solid and clean-looking motor mount that adds strength and style to your build.

Kit Includes:

(2) Counterbored head bungs (choose SAE 3/8" or 7/16")

(2) 1/2" dia solid round stock pieces (trim to fit)

(1) 3" long blind-threaded bullet bung, tapped to 1/2"-13

All necessary mock-up hardware included

Key Features:

Made from 1018 mild steel

Designed for V-Twin Harley engines: Evo, Sporty, Twin Cam, Panhead, Shovelhead, Ironhead

Compatible with custom frame tabs or mounts

Ideal for rigid frame and old-school chopper builds

Clean, symmetrical motor mount design