ARP Head Stud Kit 12-Point GM LS 2003 & Earlier HS300520 824 Hybrid

824 Hybrid

to fit into Big Ford housing ends and has an I

Chevy Camaro 2010-12

20 AN Male to 1 in NPT Male

which gives them about 1000% (that's ten times) better fatigue strength than those studs that are threaded prior to heat-treat (a very common industry practice)

ARP Head Stud Kit 12-Point GM LS 2003 & Earlier HS300520 824 HybridARPs product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline. These range from quality high performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, IMSA, NASCAR and NHRA drag racing and marine applications. Since 1968, ARP is the fastener of champions and the world leader in fastener technology. Product Description: Cylinder Head Stud Kit 12