After fixing an oil pressure issue, It Runs!

[57Suburb]

Originally Posted by LS short box

I wonder if you have the wrong O-ring for the pickup tube for the oil pump? I done a number of LS swaps using GM 2002 Camaro oil pans and pickup with stock oil pumps. Never needed more than the single bolt on the oil pump.

It could have been that too. The place I ordered it from used a blue o-ring. When I ordered the collar, I also ordered a red o-ring, because I didn't want to take the pan off again. The red one was noticeably thicker, so I went with it. Either way, it worked.