What is the tensile strength of these bolts?

These ARP thru bolts are heat-treated to a nominal tensile strength of 200,000 psi. This ensures they can handle the demanding conditions within the engine.

Do I need any special tools to install these crankcase bolts?

Installation typically requires standard hand tools for engine assembly, including sockets and wrenches. Refer to the manufacturer's installation instructions for specific tool requirements and procedures.

Are these bolts a direct replacement for the factory studs?

Yes, this kit is designed as a direct replacement for the factory crankcase studs and nuts on the specified Porsche 930 models. They offer a more secure clamping method.

ARP

ARP Porsche 3.0L/3.3L Crankcase Thru Bolt Kit

Name: ARP Porsche 3.0L/3.3L Crankcase Thru Bolt Kit
Brand: ARP
Price: 1236.54 USD
Availability: InStock

$1236.54

Worn-out crankcase bolts cause leaks. This ARP Crankcase Thru Bolt Kit is a direct fix for your 1978-1979 Porsche 930.

Key Features

Direct fit — verified for 1978-1979 Porsche 930
Stronger than stock — made from ARP 8740 chromoly steel
Improved clamping force — helps prevent crankcase leaks
Heat-treated — nominal tensile strength of 200,000 psi
Includes necessary nuts for installation

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more