Hello I have a 93 Cheyenne with a 4.3 TBI I want to swap to a 5.3 I have in a 2000 Tahoe but I'm having and issue with mounts I can't seem to find any. To fit the conversion, when I look I find Ls conversion plates but for a 5.7. Anything helps

 

You will need to change the 4.3 mounts for the 5.7 TBI mounts then the adapter plates on the 5.3 will work with those mounts