Isky Cams Oval Track Solid Flat Tappet Camshaft - SB Chevy - 545 Grind - 2500-6700 RPM Range - Advertised Duration 278, 278 - Duration @ .050" 250, 250 - Lift .545", .545" - 108 Lobe Center FR Underwear Top In addition to the above

In addition to the above

Vehicle Applications: GM Silverado/Sierra 1500 (GMTK2XX) 14-18/Tahoe/Suburban/Yukon/XL/Escalade 15-18 V8-5

Features: Die Cast aluminum construction

Fully Supported CountershaftThe countershaft is fully supported by needle bearings on a hardened steel shaft

Isky Cams Oval Track Solid Flat Tappet Camshaft - SB Chevy - 545 Grind - 2500-6700 RPM Range - Advertised Duration 278, 278 - Duration @ .050" 250, 250 - Lift .545", .545" - 108 Lobe Center FR Underwear Top In addition to the aboveSingle pattern overlap reduced for restricted intake classes (Late model stock) 3 8 mile track long rod applications. As the world's largest racing, performance, and economy cam manufacturer, Isky maintains a dynamometer testing program for constant improvement of camshaft and valve train design. These tests are conducted daily in Isky's new enlarged dyno facility. To properly evaluate and prove the efficiency of Isky racing cams and valve train