What material are these head bolts made from?

These ARP head bolts are made from heat-treated 8740 chromoly steel. This material is chosen for its increased strength and ability to withstand higher clamping forces compared to standard automotive bolts.

Do I need to buy any extra hardware for installation?

No, this kit includes the necessary hardware for installation. ARP head bolt kits are designed to be a complete solution for replacing your stock head bolts.

What is the Prop 65 warning for?

The Prop 65 warning indicates that this product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Please handle with appropriate precautions.

ARP

ARP BB Ford 390-428 FE Series Head Bolt Kit

Name: ARP BB Ford 390-428 FE Series Head Bolt Kit
Brand: ARP
Price: 100.74 USD
Availability: InStock

$100.74

ARP 155-3601 Head Bolt Kit for Ford 390-428 FE engines. Stronger than stock bolts for reliable cylinder head sealing.

Key Features

Heat-treated 8740 chromoly steel — stronger than stock bolts for better clamping force.
Specifically designed for Ford 390 and 428 FE big block engines — ensures proper fitment.
Includes necessary hardware for installation — ready to go.
ARP brand — a popular choice for performance and reliability.

This ARP head bolt kit is designed for Ford 390 and 428 FE big block engines.

⚠️ 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