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ARP (Automotive Racing Products) makes the strongest fasteners in motorsport — head studs, main studs, rod bolts, and flexplate bolts used by every Formula 1, NHRA, NASCAR, and championship motorsport program. Aerospace-grade alloys, exact-fit machining.
The ARP 147-3901 Head Bolt Kit is the definitive choice for securing the cylinder heads on your 5.7L or 6.1L Dodge Hemi engine. When pushing your engine to the limit—whether through forced induction, high compression, or aggressive tuning—the stock head bolts can stretch, leading to head gasket failure and loss of compression. ARP’s high-strength head bolts are designed to provide the consistent, extreme clamping force required to keep your cylinder heads sealed under the most intense cylinder pressures.
These bolts are a critical upgrade for any serious engine build. By maintaining a consistent seal, you ensure that your engine can safely handle increased boost and higher horsepower levels without compromising reliability. Every kit comes with the necessary hardware to complete your cylinder head installation with confidence. Don't risk your engine's performance with inferior fasteners; choose the proven reliability of ARP. For high-performance engine hardware and expert technical support, browse the full selection at GGCRACING.
Other popular ARP products customers consider together:
ARP (Automotive Racing Products) makes the strongest fasteners in motorsport — head studs, main studs, rod bolts, and flexplate bolts used by every Formula 1, NHRA, NASCAR, and championship motorsport program. Aerospace-grade alloys, exact-fit machining.
The ARP 147-3901 Head Bolt Kit is the definitive choice for securing the cylinder heads on your 5.7L or 6.1L Dodge Hemi engine. When pushing your engine to the limit—whether through forced induction, high compression, or aggressive tuning—the stock head bolts can stretch, leading to head gasket failure and loss of compression. ARP’s high-strength head bolts are designed to provide the consistent, extreme clamping force required to keep your cylinder heads sealed under the most intense cylinder pressures.
These bolts are a critical upgrade for any serious engine build. By maintaining a consistent seal, you ensure that your engine can safely handle increased boost and higher horsepower levels without compromising reliability. Every kit comes with the necessary hardware to complete your cylinder head installation with confidence. Don't risk your engine's performance with inferior fasteners; choose the proven reliability of ARP. For high-performance engine hardware and expert technical support, browse the full selection at GGCRACING.
Other popular ARP products customers consider together:
