ARP Cylinder Head Stud Kit - 12 Point Nuts - Chromoly - Black Oxide - GM LS-Series 04-Up H778001S Knowing your exact temp allows

Knowing your exact temp allows you to make sure you've got the proper oil weight and cooling capacity

Available with a 4150 or 4500 series carburetor flange

Cylinder Head InstallSince 1938

A must for the enthusiast

4 in Rectangular Port

ARP Cylinder Head Stud Kit - 12 Point Nuts - Chromoly - Black Oxide - GM LS-Series 04-Up H778001S Knowing your exact temp allowsARPs 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