June. 26, 2019
The NHRA Technical Department recently made changes to the blueprint specifications.
Chry-2009 Correct intake valve size
Chry-2010 Correct intake valve size
Ford-2011 Delete head part #’s
Ford-2012 Delete head part #’s
Ford-2013 Delete head part #’s – List heads that are CNC
Ford-2014 Delete head part #’s
Ford-1968 Correct cam specs
Ford-1984 Correct Bore/Stoke specs
Ford-1985 Correct Bore/Stoke specs
Ford-1986 Correct Bore/Stoke specs
Ford-1987 Correct Bore/Stoke specs