ARP Ford Main Stud Kit - Fits 4.6/5.4L 3V Resistor Spark Plug 1" NPT inlet

1" NPT inlet

19 in Hole Diameter

2 x 3 in Rectangle

Aluminum heel risers are drilled for easy mounting and include a non-skid pad

ARP Ford Main Stud Kit - Fits 4.6/5.4L 3V Resistor Spark Plug 1" NPT inletARPs 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: Main Stud Kit 12 Point Nuts