Ok guys I have a interesting question for all the K-Code Guru's out there. I just aquired another HiPo long block with big caps additional crank weight hipo rods hipo crank etc. Now here is were it gets interesting. The casting number on the block is Z5AE-6015-A and was cast 4F26. That was not a typo it is Z5 not C5 and is a 6 bolt casting. I aquired this block from a 60's drag racer and he claimed he would get his blocks (Motors) from Mercury Marine. The block does not have a vin number which if purchased over the counter so to speak it would not. OK the big question is, has anyone ever heard or seen a block cast this way???
Ken