SKU: PQX1000098
UPC: 842864017684
MPN: 1000098
The Main Cap Stud Kit GM LS 4.8/5.3/5.7/6.0L from PRW Industries is a critical fastening solution engineered for General Motors LS-series engine builders and high-performance enthusiasts who demand reliability under extreme conditions. Main cap studs are essential hardware that secure the engine block's main bearing caps—the foundation of crankshaft stability and structural integrity during sustained power output. This 6-bolt main stud kit addresses a known durability gap in factory hardware, particularly for forced-induction, nitrous, or high-RPM applications where stock fasteners risk failure.
Constructed from premium steel with black oxide finish, the Main Cap Stud Kit GM LS 4.8/5.3/5.7/6.0L features 12-point nuts that provide superior engagement and reduced stripping risk compared to 6-point alternatives. Black oxide treatment resists corrosion and eliminates the need for additional plating, ensuring consistent clamping force and long-term reliability in engine bays exposed to heat cycling and moisture. The 6-bolt main configuration is compatible across all standard LS displacements—4.8L, 5.3L, 5.7L, and 6.0L variants—making this kit a universal upgrade for most LS swap and performance builds. Precision manufacturing ensures accurate thread pitch and nut engagement geometry, critical for maintaining proper clamping load and preventing catastrophic main bearing failure.
This stud kit is indispensable for engine builders, performance shops, and DIY enthusiasts upgrading LS engines destined for drag racing, road racing, or street performance platforms where engine durability is non-negotiable. Installation requires basic mechanical skill and a torque wrench calibrated to manufacturer specifications; proper installation torque is critical to maximize clamping load without yielding studs. The Main Cap Stud Kit GM LS 4.8/5.3/5.7/6.0L integrates seamlessly into both stock and modified LS platforms, from mild street builds to full competition engines, providing measurable peace of mind during high-demand operation.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
