I'm reading a 2015 updated version of Charles R. Morris' great and very FE heavy book "Total Performers -Ford Drag Racing in the 1960's".
Page 161 shows Ford's Total Performance 1970 Drag Racing Program Costs as follows:
Top Fuel Dragster: Kalitta, Robinson, Baney (Prudhomme)
20 SOHC engine blocks @$788.00 each
40 cylinder heads @ $278.00 each
20 crankshafts @ $209.00 each
Much more in a panel on the Program's cost. Get this one too: Detroit Lockers at $100.00 each!
Btw, the book is a reprint from its initial publication in 2005 with minor text updates but it's still IMO a must read for FE or Ford fans.