ARP Cylinder Head Stud 10 mm Studs Hex Nuts/Install Tool/Washers Included ARP2000 - Black Oxide 355023 The reason for spread port

The reason for spread port heads is to achieve additional cooling in the center of the head where the heat concentration is greatest

8 gpm at 5 psi

Size is 27" x 12" x 11"

One billet aluminum fitting is mounted on the tube to provide a perfect connection with the factory vacuum line

1/2"NPT bung for additional water temperature sender/switch

ARP Cylinder Head Stud 10 mm Studs Hex Nuts/Install Tool/Washers Included ARP2000 - Black Oxide 355023 The reason for spread portARPs 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 10