Engine Suffix Code Mystery

Trying to find out engine information on sb350 sitting in my recently purchased '66 El Camino. Looked online but no luck on this particular suffix code UXS.
Block stamping #s are V0424UXS / Partial Vin is CL7156638
Block Casting #s are D170 ( April 17, 1990 i think) / 14093638
Thank you in advance for your help

Easy one, UXS is a 1990 350ci 190hp tbi attached to a 700R trans installed in
a series 30 G body (van, 1 ton) L05 engine code

Thank you robot! Just the info I needed.