Holley Replacement Harmonic Balancer Bolts 97-321 Bolts, Replacement, Steel, Black E-Coat, 1/2 in.-20 Thread, 2.5 in. Long, 12-Point Head, Washer included, Chevy, 6.5-8.1L, Each
Holley Replacement Harmonic Balancer Bolts 97-321 Bolts, Replacement, Steel, Black E-Coat, 1/2 in.-20 Thread, 2.5 in. Long, 12-Point Head, Washer included, Chevy, 6.5-8.1L, Each
Description
Data: v2 - Desc: v4.2 - Upd: 2026-11-08 02:17:43
Features
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Specifications
Reference Information
| Reference Data (Provide these details to our support team) | |
|---|---|
| Brand Name/s | Holley, Hilborn, Holley Efi, Retrobright, Terminator X |
| StreetFX SKU | hly97-321 |
| SFX Item ID | 4784732 |
| Accounting SKU | hly-97-321 |
| Manufacturer SKU | 97-321 |
| Manufacturer UPC | 090127068991 |
| Alternative References | 97-321, HLY-97-321, HOL97-321 |
Harmonic Balancer Bolts, Replacement, Steel, Black E-Coat, 1/2 in.-20 Thread, 2.5 in. Long, 12-Point Head, Washer included, Chevy, 6.5-8.1L, Each
Holley harmonic balancer bolts offer the perfect fit to properly install your harmonic balancer on your engine with a Holley mid-mount accessory drive. The replacement hardware is available for Chevy big block or small block applications. Each one includes a balancer bolt and thick washer.
Features:
• 180,000 psi rating (Grade 9)
• Made from steel
• Black E-coat finish
• Big block--1/2 in. wrench size
• Small block--7/16 in. wrench size
| Product Attributes | |
|---|---|
| Brand | Holley |
| Manufacturer's Part Number | 97-321 |
| Part Type | Harmonic Balancer Bolts |
| Product Line | Holley Replacement Harmonic Balancer Bolts |
| UPC | 090127068991 |
| Thread Size | 1 1/2 in.-16 |
| Underhead Length (in.) | 2.500 in. |
| Head Style | 12-point |
| Washer Included | Yes |
| Fastener Tensile Strength (psi) | 180,000 psi |
| Fastener Material | Steel |
| Fastener Color | Black |
| Quantity | Sold individually. |
Compatibility
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