I just successfully finished my DOHC swap and got her running great without any engine codes. I've been driving it daily for about two weeks now and I have discovered a new problem. Whenever I start it up, a lot of white smoke blows out of my exhaust tip but after about 10 minutes it goes away. Now I researched be possible reasons for this white smoke and I found out that it's either a cracked block, warped head, or blown head gasket. Can anyone help me out with this? Thanks in advance.