A flathead block wouldn't be much more complicated to cast than a SBC. Just a few more cores to deal with.
The issue is the ROI. It's an expensive and time consuming endeavor to develop the patterns - whether you do it by hand with wood or in CAD with a CNC mill or 3D printer - and then cast and machine small quantities. Who's willing to pay the price? Certainly not the guy who balks at spending $200 on a Ford block.
Quote:
Originally Posted by mike in tucson
...I think you could whip up a SW model in maybe 480 hours @ 100 per. That is, if you had the CMM to establish some basic dimensions.
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480 * $100 is $48,000. Who's going to pony-up the money to cover that cost, which would need to be paid before a single block is even cast?