I have started the BB swap in my blazer. before i get to far I am seriously considering moving the engine forward 2" or so to gain more clearance at the firewall. I also would like to be able to remove the oil pan so I am looking at using a '73 and newer crossmember. Has anyone done this? How much modification is involved? Anyone have a spare crossmember layout around? (In the Portland area) any other issues with the swap would be appreciated. Cheers.