Moroso A body Oil Pan for SB?

I have headman hedder too and the milodon pan and once they are in its fine but to put the pan on (in the car) you are going to have to loosen up the passenger side header -install the pan then tighten up the header again ALSO if you have a scattersheild with a block plate you are going to have to grind off about 3/16 of the rear pan rail.If no block plate then no problem