Mustang GT4 Debuts With 5.2L V8, Flat Plane Crank Missing By Michael Accardi Nov 03 2016 Share this Article Tweet Turnkey racing package drops flat-plane crank, but refines a winning formula from the Multimatic-built Shelby GT350R-C Continue Reading... Filed under: American Auto Show News Coupes Featured Articles Ford Motorsports SEMA Sports CarsTags: brembo, Ford, GT 350 RC, gt4, Holinger, imsa, MoTeC, Mustang, Mustang GT4, pirelli world challenge, roush, SEMA, shelby, SportsCar Challenge, zf