[QUOTE=FFR428]Mine is an Gen iron block from KCR. Keith did all the machine work and detail painting. I'm very pleased. They do require quite a bit of machine work and KC has built plenty of them and felt worth it to have them do the work. Mine is a 4.250" bore size. It's heavy too!!! 265 lbs or there abouts on the G lift-o-meter....LOL Waaay heavier than a oem block anyways.

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If and when I ever get one, it will definitely be the aluminum block... Friend of mine in Minneapolis just picked his up when he was in Vegas for the NASCAR race. He stopped by here, it's a beauty!!! He hadn't decided who will be doing all the machine work, probably Tim Schwanke. He's done some of mine, nothing but first rate work!!!! Even though he's a chebbie guy!!!!!