ARP BB Chevy Main Bolt Kit - Fits 2-Bolt LY23171 2-5/8 in Diameter Hole

2-5/8 in Diameter Hole

1975-1975 Pontiac Grandville

An O-ring seal and two chrome-plated socket head cap screws are included

2-1/2 in Pipe Diameter

ARP BB Chevy Main Bolt Kit - Fits 2-Bolt LY23171 2-5/8 in Diameter HoleARPs 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 Bolt Kit High