[hford]

OK, I need info quick!!!!!!!!!!!! Located a block that has 352 cast on front (not uncommon) and above that is 88. The block mikes at approx. 4.130" (428 bore). Block has a 3/8" plug on the right side about the center front to back and just above the pan rail (this is often on a truck block if I'm not mistaken) and the block has external ribs on both sides. There is a "DD" cast on one side of the block. I can find no other casting numbers or letters. I thought that truck blocks either had a mirror image 105 on the front or nothing at all in this area. ANY IDEAS OUT THERE?