Craig, I don't know that you didn't slready try this: I used my parts CD for the P/N: 10098129 = mount heat shield, motor. I went to a chevy site and plugged in the P/N @ P & G Chevy ( now Rowland Chrys/Jeep) and came up empty on the p/n search engine. I then used their "body/collision catalog and looked up motor mounts & associated parts & it gave this link:
https://www.partszoneonline.com/cata...ewer.php?id=4#
This is supposed to be the heat shield. I'm thinking that the p/n on the parts CD that I have has been superceeded? You can call these guys & talk with Marko in parts and they will give you the straight scoop, or call Tom Henry/superrior chevy & inquire with them.
Sorry I don't have a better answer for ya.
Tom