This may be a stupid question, but I was wondering if anyone knows if there are any other long blocks that can be used with everything else of D15 parts other than another D15 engine. Maybe a D16 or something I'm not sure. Im just trying to figure something out for a friend he is on a limited budget and wants to put something else into his 93 Del Sol other than a D15 if possible. Any suggestions or comments are greatly appreciated. thanks in advance