Holden HQ-WB To GM LS Engine Mount Adapters AF64-3052Holden HQ WB To GM LS Engine Mount AdaptersSuit Conversion Cars, Sold as a Pair, Requires use of Standard Holden Engine Mounts AF64 3052 64 3052 These steel conversion adapters are designed for installing a GM LS series engine into your Holden HQ, HJ, HX or HZ models. They allow the factory Holden engine mount to be used for engineering purposes where an OEM engine mount is required.