ARP Header Bolt - 8 mm x 1.25 Thread - 0.984 in Long - 12 Point Head - Polished - GM LS-Series - Set of 12 Fuel Cell Can 6L Aluminum Blocks M-6026-A46

6L Aluminum Blocks M-6026-A46

and Ultra Strong

Low friction Teflon(R) lined self lubricating 1/2 inch bearing on both ends

which makes for a more consistent clamping force and one that compensates for head gasket compression when the cylinder heads are installed

2000 Series Pro-Flow

ARP Header Bolt - 8 mm x 1.25 Thread - 0.984 in Long - 12 Point Head - Polished - GM LS-Series - Set of 12 Fuel Cell Can 6L Aluminum Blocks M-6026-A46ARPs 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: Header Bolt 8 mm x 1. 25