Street and towing camshaft kits for Dodge/Ram Cummins with 12- and 24-valve engines have matched components to allow quicker spool-up with the factory turbo and more bottom-end torque. Towing cams also offer more torque on the bottom end of the power range.
The lifters promote better lobe life with today's low zinc oils and are effective up to 5,000 rpm. The heavy-duty pushrods can handle increased cylinder pressure, spring pressure and rpm. The valve springs can handle up to 4,500 rpm and work with OEM-sized valves.
Price: $1,395.99. Website: www.summitracing.com.