THOMAS,
THE PAST FEW BIG BLOCKS THAT WE HAVE DONE REQUIRED US TO ORDER CUSTOM MADE PISTONS. ROSS, J&E, ARE 2 THAT COME TO MIND THAT WE HAVE USED. THE PRICE IS SCARY BUT THAT IS WHAT WE WERE LEFT WITH AS AN OPTION. USUALLY 3-4 WEEK LEAD TIME AS WELL. JUST COMPLETED A 69 L89 CHEVELLE MOTOR AND THIS IS WHAT WE HAD TO DO... HOPE THIS HELPS.... KP