You will need to move the passenger side Motor mount.
I am not sure but the C10 might have bolt holes for the mount in the V-8 position.
My '66 C20 didnt have the mounts so i just welded the mount to the frame.
I put a pic of my motormounts on my website.
Mount Pic


1953 M38A1 (Military Jeep)
1962 K10
1963 FC170 (Ugly Jeep)