STANDARDEarl's Performance Products was founded by Earl Fouts in 1955 in Lawndale, California. The mission was to supply high-quality military aircraft surplus plumbing components directly to the racing industry from a small retail outlet. As the military surplus market dried up, Earl recognized the need for continuity of supply for the racing market and pioneered the Earl's range of hoses and fittings that are still used today. In doing so he created the racing aftermarket plumbing industry.
| Emission Code | 5 |
| Engine | Chevy Small Block V8 |
| Engine Make/Size | Chevy Small Block |
| Finish | Black Oxide |
| Head Style | 12-Point |
| Material | 4135 Chrome Moly |
| Maximum PSI | 180000 |
| Part Type | Engine Harmonic Balancer Bolt |
| PSI Rating | 180,000 |
| Reusable | Yes |
| Thread Size | 0.4375- 20 |
| Under Head Length | 2.470 in. |
| Washer Included | Yes |
| Washer Size | 0.270 in. Thick x 1.960 in. Diameter |
| Washers Included | Yes |
| Wrench Size | 0.625 in. |
