ARP 147-2801 Pro Series Flywheel Bolt Kit

ARP's Pro Series Flywheel Bolt Kit delivers competition-grade fastening performance for high-performance engines. Originally developed for NASCAR Winston Cup racing, these premium fasteners provide superior strength and reliability compared to OEM hardware, making them ideal for both race cars and street machines.

Key Features:

• Pro Series grade with 200,000 PSI tensile strength rating
• Forged from aerospace-grade alloy for maximum durability
• Heat-treated prior to thread rolling and precision machining
• Exclusive flat 12-point head design for positive engagement
• Larger than stock shank diameter for increased strength
• Improved flywheel register fit for better alignment
• Complete kit includes washers and hardware where applicable

ARP flywheel bolts address a critical safety and performance concern by replacing factory fasteners with engineered components designed to withstand extreme loads. The 12-point head design allows for precise torque application and reduces the risk of head rounding, while the increased shank diameter provides a stronger clamping force to prevent flywheel slippage under high RPM and load conditions.