The Speedmaster PCE287.1024 12 Point Main Stud Kit is engineered for GM LS-series engines including LS1, LS2, LS6, LS7, and LSX Gen III applications. Replacing factory main bolts with studs provides more consistent and accurate torque loading across the main bearing caps, helping to maintain proper bearing crush and block integrity under high-performance or high-stress conditions.
Each stud in this kit features a 12-point fastener design for secure installation and reliable clamping force, making it a popular upgrade for street performance builds, track use, and engine rebuilds. Designed as a direct replacement for OEM main fasteners on compatible LS-platform engines, this kit is a straightforward way to add a layer of bottom-end reliability to your build.
