ARP Cylinder Head Stud Kit - Hex Nuts - Chromoly - Black Oxide - Oldsmobile V8 184-4004 H759001 The main body is tapped

The main body is tapped to accept Holly JETs

Nylon Housing

Designed to match the look of factory 2002-2006 GM heavy duty pickup cab roof lights but with updated smoked lenses and amber L

and L99 applications will require taller brackets and adapter O-rings to be used with EV1 injectors

ARP Cylinder Head Stud Kit - Hex Nuts - Chromoly - Black Oxide - Oldsmobile V8 184-4004 H759001 The main body is tappedARPs 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 Hex