LS Engine Block-Off Adapter

The LS Engine Block-Off Adapter by DERALE is a precision-engineered component designed for LS engine builds that require port sealing without permanent modifications. This adapter is ideal for mechanics and enthusiasts working on carbureted LS setups, retrofitting older cooling systems, or consolidating ancillary ports during stroker assemblies.

Constructed from cast aluminum, the LS Engine Block-Off Adapter is designed to prevent vacuum leaks and maintain system integrity. Its compact dimensions of 2.5 x 1.5 x 4 inches allow for seamless integration into tight engine bay configurations, while its lightweight design ensures no impact on vehicle dynamics or balance.

This component is essential for LS engine swaps, track-focused builds, and restoration projects where OEM cooling or emission ports require blocking. Installation is straightforward, requiring no modifications to the block and integrating with factory gasket surfaces, making it suitable for both bolt-on projects and full engine refreshes.