Texas Speed Precision Race Components 2014+ 5.3L L83 CNC Ported Cylinder Heads - PAIR. Precision Race Components is proud to introduce our CNC ported 5.3L L83 cylinder heads! The PRC ported gen 5 L83 cylinder heads are an excellent upgrade for customers looking for more power than what the factory castings offer. Bolt on these CNC ported L83 heads & gain 25+ HP depending on milling! Pair our ported cylinder heads up with a TSP L83 truck camshaft that was designed on our SuperFlow engine dyno and our TSP stainless steel long tube headers and y-pipe maximum power! Ask your sales professional how you can gain 100+ HP today! These…