BLOX Racing Tuner Series camshafts are designed and manufactured using OEM-spec, chill-cast camshaft cores.Tuner Series Type-A camshafts are ideal for stock to mild engine builds.Upgraded valvetrain is not necessary, but is always recommended.Camshaft SpecificationsINTAKE: 247° / 0.462” EXHAUST: 239° / 0.420”