ARP 4303507 Starter Bolt Kit – 4.450 in Stainless Hex Head, GM/Chevy, Pair

Overview

Meet the ARP 4303507 Starter Bolt Kit, a genuine ARP component designed to meet the needs of GM and Chevrolet applications. The kit includes a pair of starter bolts that are 4.450 inches long, feature a hex head for easy tightening, and come in a polished stainless finish for a clean, professional appearance in the engine bay.

Key specifications

• Starter Bolt length: 4.450 inches
• Hex head design for simple, precise tightening
• Material: stainless steel with a polished finish
• Compatibility: GM / Chevrolet applications
• Part number: 4303507
• Includes: 2 bolts

What you receive and packaging details

• Package weight: 0.35 pounds
• Package dimensions: 23.876 L x 2.032 H x 14.732 W cm
• Brand: ARP (Automotive Racing Products)
• Manufacturer part number: 4303507

Real-world use cases and benefits

In typical automotive projects, these stainless bolts provide a robust option for clean installation, corrosion resistance, and straightforward replacement during maintenance or upgrades. They are well suited for GM engine bay connections where a longer, reliable bolt is needed, and they offer a polished appearance that helps maintain a tidy engine compartment. While results can vary by application, the combination of stainless construction and ARP engineering can contribute to dependable fastener performance in demanding environments.

Why choose ARP for your build

Choosing ARP means opting for a trusted name in automotive hardware. The 4303507 bolts deliver a balance of durability, finish quality, and compatibility with GM/Chevrolet systems, making them a practical option for both restoration work and performance-oriented projects. Consider them as part of a thoughtful upgrade path that emphasizes reliable fasteners without compromising on appearance or fit.