Your best bet is to take everything to a machine shop and have them swap your parts and do a refresh. I'm not trying to be an ass but if you are not confident in your ability to rebuild this thing paying somebody is your best option, it will save you time and money and grief down the road

Make sure you use the 30psi pressure valve on the side of the oil pan and remove the one in the middle. Be sure you are using a oil cooler and block adaptor.

Buy a how to Big Block Chevy Manuel, and do it step by step, Picture by picture, all the torque specs. and other info. that you will need should be in there. Good Luck.

Ok, it will not let me edit for some reason, it is the "oil filter pad" not the pan

X2