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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.
For those building a high-horsepower 2.5L B5254 5-cylinder engine, the ARP 251-5801 Main Stud Kit is an essential upgrade. Main studs are critical for maintaining main bearing alignment and preventing crankcase distortion under high load. By replacing the stock main bolts with these high-strength ARP studs, you provide your crankshaft with the stability it needs to handle increased torque and higher RPMs.
The 251-5801 kit ensures that your main caps are held firmly in place, which is vital for the longevity of your crankshaft and bearings. Unlike standard bolts, these studs allow for more accurate torque readings, as they do not twist during installation. This results in a more uniform clamping force across the main bearing journals. Whether you are building a street-strip monster or a dedicated track vehicle, these main studs are a foundational element for a reliable, high-performance engine. Invest in the best hardware for your bottom end and ensure your build stays together under pressure with 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.
For those building a high-horsepower 2.5L B5254 5-cylinder engine, the ARP 251-5801 Main Stud Kit is an essential upgrade. Main studs are critical for maintaining main bearing alignment and preventing crankcase distortion under high load. By replacing the stock main bolts with these high-strength ARP studs, you provide your crankshaft with the stability it needs to handle increased torque and higher RPMs.
The 251-5801 kit ensures that your main caps are held firmly in place, which is vital for the longevity of your crankshaft and bearings. Unlike standard bolts, these studs allow for more accurate torque readings, as they do not twist during installation. This results in a more uniform clamping force across the main bearing journals. Whether you are building a street-strip monster or a dedicated track vehicle, these main studs are a foundational element for a reliable, high-performance engine. Invest in the best hardware for your bottom end and ensure your build stays together under pressure with GGCRACING.
Other popular ARP products customers consider together:
