Studded Head Bolt for Secure Briggs Raptor Engine Assembly - Superseded to 691690

Strong foundations win races—start with the studded head bolt (SKU: 555082) that anchors your Briggs Raptor engine. Superseded to 691690, this bolt features a threaded stud design for easy installation and superior holding power under high compression.

• Resists loosening from engine vibrations, maintaining optimal seal
• Allows precise torque application for even pressure distribution
• Supports higher boost levels in modified engines without stripping

Imagine pushing your kart to the limit without worrying about head lift; this bolt delivers that confidence. By keeping the head gasket intact, it preserves compression ratios vital for quick acceleration and top-end speed. Track organization improves too, as fewer rebuilds mean more laps logged. For any kart racer, this small upgrade means big reliability gains.