ARP Pontiac 400-428, Ram Air & SD 12pt head stud kit

ARP is well-known for making strong fasteners, and this 12-point head stud kit is a prime example of their work for Pontiac V8 engines. If you're rebuilding the top end of your Pontiac 400, 428, Ram Air, or Super Duty engine, these studs are designed to keep your cylinder heads securely in place under demanding conditions.

This kit uses 12-point nuts, which can be easier to access in tight engine bays compared to standard hex nuts, especially when you're working with limited clearance. The studs themselves are made from ARP's proprietary 8740 chromoly steel, heat-treated to over 200,000 psi tensile strength. This means they can handle the increased clamping forces needed for high-performance builds, helping to prevent head gasket leaks and ensure consistent cylinder sealing. The kit includes the studs, nuts, and washers needed for installation.

When installing these studs, it's important to follow ARP's recommended procedures, which typically involve cleaning the block deck and cylinder heads thoroughly. You'll also want to use the appropriate thread sealant on the block threads and lubricate the studs and nuts before torquing them down. This kit is a solid option for anyone looking to build a reliable Pontiac V8.