I went and checked out the headers and got pictures for you. I hadn't realized that the left side header has a couple cracks in it so you may not be interested but the turbo side and the crossover are fine so up to you
You will be better off to just buy a complete engine out of an 86 or 87. Your standard block V-6 will not have a hole tapped in the front for the turbo oil drain line and it will not have the same crank as a turbo motor... About the only thing you could use would be your bare block and you would have to drill the hole in the front for oil turbo drain line as mentioned above if u used it.. A few other things to consider would be the engine wire harness and the computer which would need to be changed out as well..A buddy of mine just bought a turbo motor complete with everything. Headers, turbo, computer, intercooler etc... Honestly unless this 81 Regal was in pristine condition and you really want a project you would better off to buy a 86/87 turbo Regal. The prices are as low as you can get right now if you have a little patience there are always alot for sale....
I recently bought an 81 Regal with a 3.8L V6 and I want to add some heat GN/T-Type style. How do I go about that? Do I just buy a GN/T-Type Engine or add-on to the one I have. The engine I have is strong, I just want some kick.
I haven't completly tore the motor the down yet. Have everything off except the heads and front cover. Had a few local Buick buddies come over who both have experience and also both run roller cams without issue. I'm going to pull off the oil pan take off the caps and check the journals on the crank and go from their.
V8 EATER, did you have to go through your motor when you cam went south. Also, did you have a hard time starting your freshly rebuilt engine? I know I did, took me a few days of hunting other problems and I'm thinking that didn't help the cam much. also stupid me forgot to add break in fluid with engine oil so I kinda got 5000 miles out of it. I will be putting Rotella diesel oil in with my new flat tappet cam and also cam lube.