Since their release, Jesel Sportsman Series shaft rocker arms have proven themselves to be the ultimate replacements for inadequate stud rocker assemblies on OEM and aftermarket cylinder heads. The 2024 aluminum bodied rocker arms are designed and built to easily handle today's aggressive springs and cam profiles to withstand open spring pressures of up to 900 lbs., while maintaining precise valve lash settings. These shaft rocker arms bolt-on without any necessary cylinder head modifications, and in most cases, will still fit under a stock valve cover. The geometry is preset and engineered on the rocker arms by using the common valve supplied with the cylinder head to provide a bolt-on-and-go installation. So, if you are still spending aggravating hours adjusting your stud rockers, only to have to repeat the procedure the next weekend, Jesel Sportsman Series shaft rocker arms are your solution.
Since their release, Jesel Sportsman Series shaft rocker arms have proven themselves to be the ultimate replacements for inadequate stud rocker assemblies on OEM and aftermarket cylinder heads. The 2024 aluminum bodied rocker arms are designed and built to easily handle today's aggressive springs and cam profiles to withstand open spring pressures of up to 900 lbs., while maintaining precise valve lash settings. These shaft rocker arms bolt-on without any necessary cylinder head modifications, and in most cases, will still fit under a stock valve cover. The geometry is preset and engineered on the rocker arms by using the common valve supplied with the cylinder head to provide a bolt-on-and-go installation. So, if you are still spending aggravating hours adjusting your stud rockers, only to have to repeat the procedure the next weekend, Jesel Sportsman Series shaft rocker arms are your solution.