The NHRA Technical Department recently made a change to the 2014 Chevrolet, 09-10 Chrysler, 10-14 Ford Blue Print Specifications.

Chev 2014 added bore, stroke, and rod length 350 530

Chry 09-10 Challenger added 370 340/340   

Ford 2014 Cobra Jet added 429 455/455

Ford 10-14 Cobra Jet corrected throttle body size

Ford 2012 Cobra Jet 302 325 added alternate manifold

Ford 11-14 Mustang GT 302 380 added alternate manifold

Ford 2012 Cobra Jet 330 510 corrected deck clearance