LS Engine Swap M16 x 1.5 Adapter to 1/8 NPT

The LS Engine Swap M16 x 1.5 Adapter to 1/8 NPT is a precision threaded coupling designed for builders performing LS engine conversions into non-LS platforms. This adapter connects the metric M16x1.5 threads found on LS-platform components to NPT (National Pipe Thread) ports commonly used in custom cooling lines, sensor bungs, and accessory fittings.

Manufactured by ICT BILLET from high-quality billet aluminum, this adapter ensures reliable thread engagement and minimal flow restriction for coolant systems, oil lines, and pneumatic accessories. The M16x1.5 male end provides a precision fit for LS-spec ports, while the 1/8 NPT female port accommodates standard aftermarket fittings, sensors, and bypass valves.

Engine builders, fabricators, and enthusiasts converting non-LS platforms to LS power will find this fitting beneficial, especially where existing NPT-threaded accessories, coolant tanks, or sensor ports require a direct connection to LS block or cylinder head ports. Its compact design integrates seamlessly into tight engine bay configurations without adding bulk or weight.