I disagree with some of you to an extent...the demand is alot lower then if could be because of price period.
My 48* block cost 2400 and needed another 2000+ in machine work which I think kills the normal dudes desire.
If Dart can do for a mopar sb what they do for an iron eagle you could sell twice the amount which I beleive is a few hundred blocks a year.4800 or 2500 complete is a HUGE difference.