383 commando ..whats it worth?

I agree with dusterdon 383's are good big blocks not $800.00 good you can get a buildable 440 for less then that. As far as the heads go all big blocks are interchangeable just like smallblocks just remember some are better than others just look at valve sizes the bigger they are the more flow you have. And that ='s HP. You should shop a little before you buy! Good luck on your build.