TSP 1/2" 12-Point Head Stud Kit, Standard 2004+ Blocks

TSP has put together an ARP 1/2" head stud kit for non-six-bolt LS-based engine blocks! This kit is designed for a standard GM production block, and it will require machining to drill and tap the 1/2" holes for the larger stud size. This kit is a must for anyone looking to run boost or nitrous on their engine without spending thousands of dollars on a new six-bolt block. The kit will include the following items:

We do all of our machining in-house, so give us a call if you would like a quote for us to upgrade your block for 1/2" head studs!