i just purchased a markviii complete motor for 162.00 on ebay. i'm only going to use the heads and modify the intake, but it is an example of how cheaply 4v can happen. reground cams for less than 3v cams. i'm not going to use them for a year, but one can never start too soon. as a side bonus it's a teksid block. not bragging or anything, but this should end the "it's too expensive" crap.