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Get it between 2025-10-27 to 2025-11-03. Additional 3 business days for provincial shipping.
Direct GM 12589016 Replacement – Perfect OEM‑fit upgrade for LS1, LS2, LS3, LQ4, LQ9, and other Gen III/IV non‑VVT LS engines, making installation straightforward and hassle‑free.
Heavy‑Duty Flat‑Style Plate – Eliminates the weak factory countersunk torx design, preventing stripped or seized bolts during disassembly and ensuring long‑term serviceability.
Includes ARP 134‑1002 Bolt Upgrade – Premium flat‑head ARP bolts provide extreme clamping force, resisting loosening under high‑RPM stress for maximum reliability.
Proven in High‑Performance Builds – Trusted by professional LS builders for street, strip, and endurance racing applications thanks to its strength, precision, and consistent performance.
Built for Non‑VVT LS Engines – Compatible with 4.8, 5.3, 5.7, 6.0, and 6.2L non‑VVT LS configurations. Not for VVT engines; use the correct countersunk version if your build has VVT.