ARP 154-5203 High Performance Main Bolt Kit for Small Block Ford 351W

The ARP 154-5203 Main Bolt Kit is designed for Small Block Ford 351W applications with four-bolt main configurations. This High Performance Series kit provides a dedicated main-bolt solution for engine builds requiring durable, performance-focused hardware.

The kit uses a hex-head design manufactured from chromoly steel. Its black oxide finish provides the specified surface treatment while maintaining the clean, functional appearance associated with performance engine hardware.

Use the ARP 154-5203 kit when servicing or assembling a compatible 351W Small Block Ford engine with four-bolt mains. The product data identifies this as a kit, making it a practical choice for replacing or upgrading the main bolts as part of an engine build.

With its ARP branding, High Performance Series designation, hex-head configuration, chromoly construction, and black oxide finish, this main bolt kit is suited to enthusiasts and builders seeking application-specific hardware for Small Block Ford 351W engines.

Features:

• Brand: ARP
• Part Number: 154-5203
• Application: Small Block Ford 351W
• Configuration: Four-bolt mains
• Series: High Performance Series
• Head Style: Hex head
• Material: Chromoly
• Finish: Black oxide
• Product Type: Main bolt kit