Best "no problem installing/clearance header

Thanks guys, looks like I am in for some fun!
I will compare the prices for TTI and Dougs shortys
My engine is out so I can install them on block easy enough but sounds like it should still be "fun" setting it down in the hole.

You all are great, thanks!

Happy holidays to all!

You don't want to install the headers on the block first. Install the engine, then the headers from the bottom. Don't know if the process is true for the shorties.