94011951OEM Rocker Shaft BoltOEM replacement rocker shaft bolt. 5 required per bank. These can stretch if torqued more then 2 times and not tighten properly This could lead to engine troubles. Dont risk damage.
230-4201ARP Duramax Head Stud KitHead Stud Kit fits all model year Duramax. ARP studs are highly recommended for any performance engine build.