ARP 134-1202 Chromoly Header Bolt Kit, Chevrolet Gen III/LS, 3/8 inch
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ARP 134-1202 Chromoly Header Bolt Kit (Chevrolet Gen III/LS Series) provides premium-grade header fasteners engineered for high strength and long life. ARP bolts are forged from alloy steel/chromoly and are rated at 170,000 psi—far stronger than stock hardware—ensuring reliability under severe conditions. This kit includes the exact quantity of parts required for the application plus premium washers and hex-head hardware, finished in black oxide for corrosion resistance. Specifications include fully threaded fasteners, 3/8" fastener size, 0.38" item diameter, grade 10.9 hardness, metric thread sizing (8 mm x 1.25), and compatibility with Chevrolet Gen III/LS headers. Unit weight ~0.6 pounds; packaged as a hardware kit with manufacturer warranty.
- Fastener finish: black oxide
Specifications:
| Materials & Construction | |
| Color | Black |
| Exterior Finish | Painted |
| Finish Types | Black Oxide |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Metal Type | Alloy Steel |
| Product Details | |
| Compatible Groove Diameter | 0.38 Inches |
| Exterior Finish | Painted |
| Fastener Size | 3/8 inches |
| Fastener Type | Hexagon Bolt |
| Finish Types | Black Oxide |
| Head Style | Hex |
| Head Type | Hex |
| Included Components | Hardware Kits - Other |
| Item Diameter | 0.38 Inches |
| Item Hardness | Grade 10.9 |
| Item Type Additional Info | Hardware kit includes premium washers and required parts for application |
| Item Type Name | Hardware Kits - Other |
| Item Type Name - Best Sellers Rank | #17,719 in Automotive; #1 in Automotive Replacement Exhaust Header Bolts |
| Model | 134-1202 |
| Model Number | 134-1202 |
| Part Interchange Info | 134-1202 |
| Screw Head Style | Hex |
| Set Name | ARP 134-1202 Header Bolt Kit |
| Set Screw Thread Type | Unified National Coarse (UNC) |
| Size Name | Stock |
| Thread Coverage | Fully Threaded |
| Thread Style | Right Hand, 1/4-20 UNC |
| Thread Type | Metric |
| Unit Count | 1.0 Count |
| Warranty Description | Manufacturer Warranty |
| Sizing & Dimensions | |
| Height | 1 inches |
| Length | 7 inches |
| Product Dimensions | 7.00 x 5.00 x 1.00 inches |
| Size | 3/8 inches |
| Weight | 0.62 pounds |
| Width | 5 inches |
| Technical Specifications | |
| GTIN | 672036041984 |
| Item Hardness | Grade 10.9 |
| Manufacturer Grade | Grade 2 |
| Thread Size | 0.315 inches x 0.049 inches |
| Thread Style | Right Hand, 1/4-20 UNC |
| Thread Type | Metric |
| Unit Count | 1.0 Count |
| UPC | 672036041984 |
| Warranty Description | Manufacturer Warranty |
