If you're working on an LS engine build, you know the frustration of dealing with factory camshaft thrust plates. The original GM countersunk torx design is notorious for stripping or seizing during disassembly, turning what should be a routine job into a nightmare. That's why Michigan Motorsports developed this heavy-duty thrust plate kit engineered to solve those common headaches once and for all.
Factory LS thrust plates use a weak countersunk torx bolt design that's prone to stripping and seizure under high-stress conditions. This direct replacement for GM #12589016 features a robust flat-style plate that eliminates those problematic design elements. The flat construction provides maximum strength and prevents the bolt binding issues that plague stock plates, making engine assembly and disassembly smooth and hassle-free.
This kit doesn't just improve the plate—it upgrades the entire system. You'll receive ARP 134-1002 flat-head bolts, the gold standard in fastener technology. These premium bolts provide extreme clamping force that resists loosening even under high-RPM stress. The ARP hardware ensures your camshaft stays precisely positioned where it belongs, preventing timing chain stretch and maintaining optimal valvetrain performance.
Professional LS builders across the country trust this thrust plate kit for everything from street machines to full-out race engines. Whether you're building a 4.8L daily driver, a 5.3L weekend warrior, or a 6.2L competition beast, this plate delivers the reliability you need. It's specifically engineered for non-VVT LS engines including LS1, LS2, LS3, LQ4, LQ9, and other Gen III/IV applications. Just remember to use the correct version if you're working with a VVT engine—this kit is designed for non-VVT configurations only.
Don't let a weak thrust plate compromise your entire LS engine build. Upgrade to this heavy-duty solution that combines superior engineering with premium hardware for years of trouble-free performance.
