ARP Main Stud Kit - Hex Nuts - 4-Bolt Mains - Chromoly - Black Oxide - Big Block Chevy Engine Additive They are precision laser cut

They are precision laser cut and 1mm (

1994-1997 Chevrolet B7

Clear sight windows on both sides of bowl for easy & safe fuel level adjustments

125 in Primary

Rectangular Port

ARP Main Stud Kit - Hex Nuts - 4-Bolt Mains - Chromoly - Black Oxide - Big Block Chevy Engine Additive They are precision laser cutARPs 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 Hex Nuts 4