LA Block Accessory Plates/ Mounting Brackets

I am not exactly sure what these are for.

I know they are from an LA Engine and they are brackets for mounting front accessories. Possibly Alternator support or part of the RV2 / c171 Compressors?

Cleaned and blasted ready for your project, Asking $20 OBO plus shipping from 15642 to you.

53654797822_a1b79a0953_c.jpg20240413_101901 by Hyperpack, on Flickr
53656024444_5bcb5b9699_c.jpg20240413_101903 by Hyperpack, on Flickr
53655671791_3e536ca1bb_c.jpg20240413_101848 by Hyperpack, on Flickr

Thanks!