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🔧 Upgrade your Chevy’s heart with studs that mean business!
The PQY Cylinder LS Head Studs Bolts Kit is a premium-grade, 12-point stud bolt set engineered for Chevy LS engines from 2004 to 2019. Featuring centerless ground, heat-treated alloy steel with a tensile strength of 180K psi and a high-temp black oxide finish, this kit ensures superior durability, precise torque application, and direct compatibility with multiple LS engine variants. Complete with all necessary studs, nuts, and washers, it’s the ultimate upgrade for professional-grade engine performance and reliability.






| ASIN | B0B4FP6GBT |
| Best Sellers Rank | #65,104 in Automotive ( See Top 100 in Automotive ) #14 in Automotive Replacement Engine Head Bolt Sets |
| Brand | PQY |
| Color | black |
| Compatible Groove Diameter | 11 millimeters |
| Customer Reviews | 4.1 out of 5 stars 103 Reviews |
| Exterior Finish | Black Oxide |
| Fastener Size | M11 |
| Fastener Type | Stud Bolt |
| Finish Types | Black Oxide |
| Grade Rating | Grade 2 |
| Head Style | 12-Point |
| Item Diameter | 11 millimeters |
| Item Hardness | Grade 2 |
| Item Highlight | 12-Point Cylinder Gasket Head Stud Bolts Nuts Kit for LS1 LS3 5.3L 5.7L 6.0L /LS6 L98 4.8L 5.3L 6.0L Engines |
| Manufacturer | PQY |
| Manufacturer Grade | Grade 2 |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Maximum Shear Strength | 420 MPa |
| Metal Type | Alloy Steel |
| Model | 234-4317 |
| Number Of Items | 90 |
| Number of Packs | 1 |
| Number of Pieces | 90 |
| Part Number | 234-4317 |
| Screw Head Style | 12-Point |
| Screw Point Style | 12-Point |
| Set Name | PQY 12-Point Cylinder Gasket Head Stud Bolts Nuts Kit |
| Size Name | for 04-19 Chevy |
| Thread Size | M11 |
| Thread Style | Right Hand |
| Thread Type | Metric |
| Unit Count | 1 Count |
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