

🔩 Lock in power with ARP’s ultimate head bolt set — because your Ford deserves nothing less!
The ARP 1543601 Head Bolt Complete Set is a premium-grade, high-strength steel alloy kit designed exclusively for small block Ford 289-302 engines. Featuring 0.5 inch UNC threads, a durable painted black finish, and Grade 8 hardness, this USA-made fastener set ensures maximum shear strength and reliable engine performance with professional-grade precision.

| Material | High Strength Steel Alloy |
| Thread Size | 0.5 inch |
| Exterior Finish | Painted |
| Manufacturer Grade | Grade 8 |
| Head Style | Hex |
| Colour | Black |
| Fastener Type | Hexagon Bolt |
| Brand | ARP |
| Thread Type | UNC |
| Thread Style | Right Hand |
| Item Hardness | Grade 8 |
| Size | 1/2-16 UNC |
| Metal Type | Stainless Steel |
| Head Type | Small Block Ford |
| Thread Class | UNC |
| Maximum Shear Strength | Approximately 240 MPa (megapascals) |
| UPC | 672036003692 |
| Global Trade Identification Number | 00672036003692 |
| Manufacturer | ARP |
| Model | ARP 1543601 |
| Product Dimensions | 22.86 x 10.16 x 7.62 cm; 1.53 kg |
| Item model number | 154-3601 |
| Manufacturer Part Number | 1543601 |
| OEM Part Number | 154-3601 |
| Assembly Required | No |
| Country of Origin | USA |
| Item Weight | 1 kg 530 g |
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