main caps are made with the block, every block is different. and it's all about how the cap fits to the block surface, George said prob some welding and grinding on cap to make it fit, then possibly timing chain problems too. George said to fit caps and line bore would be around $700, he said to fit splayed caps to a two bolt block would be around $700 also. http://www.gessford.com/
ask for George toll free 800-829-3448, nice guy that knows his stuff, he will answer all your questions. i thought a set of used or new main caps and line bore. but George at gessfords said it's not that easy, and so did terry at http://fcrperformance.com/
1-877-215-1800 both guys will take the time to talk to you. splayed caps are not drill , tap and go either.