I will be getting another batch of block adapter cut within weeks if anyone want one speak up. On another note the crank hub adapters to mate a non vortec GM automatic (PG/TH200/350/400/700) will be ready by mid next week baring any more delays at the machine shop.

The extra long dowel pins are ready and in stock.

51 GMC 4.2 turbo
Can't solved today's problems using the same technology/thinking that created them