The 4.2 is a GREAT inline engine. I think the point efi-diy was trying to make it that in terms of extracting huge power from an inline six there are cheaper and simpler ways of doing it than trying to mate a hybrid head to an antiquated short block. As for the potential of the 4.2 six, do a google on the likes of "Glen Treadwell", "Jerry Arnold", "Brian Self", and others who have switched to the 4.2. Granted, their seven-second race motors have more than bolt-on parts done to them, but efi-diy is correct in implying that HP for HP dollar, there are better alternatives to a hybrid-headed six. And one of them is the 4.2. If they are legal in your dirt modified I would look into it.
Otherwise look at a 300 Ford.
Last edited by THE FRENCHTOWN FLYER; 07/02/08 12:37 PM.
