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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.
Take your Mitsubishi Lancer EVO 8/9 to the next level with the ARP L19 Head Stud Kit. Specifically engineered for the 4G63 7-bolt engine, these L19 studs are the gold standard for high-boost and high-horsepower applications. L19 material is significantly stronger than standard 8740 chromoly, providing the extreme clamping force necessary to keep your cylinder head sealed under the most demanding racing conditions.
L19 material is heat-treated to provide a tensile strength in the 260,000-280,000 psi range. This makes the kit ideal for engines running high boost pressures or nitrous oxide, where cylinder head lift is a common concern. Because L19 is a high-strength material, it is susceptible to hydrogen embrittlement and corrosion; therefore, it requires proper lubrication and maintenance. By upgrading to this kit, you are investing in the longevity of your engine block and head gasket. Ensure your build is ready for the track with the best hardware available. Find your performance solutions 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.
Take your Mitsubishi Lancer EVO 8/9 to the next level with the ARP L19 Head Stud Kit. Specifically engineered for the 4G63 7-bolt engine, these L19 studs are the gold standard for high-boost and high-horsepower applications. L19 material is significantly stronger than standard 8740 chromoly, providing the extreme clamping force necessary to keep your cylinder head sealed under the most demanding racing conditions.
L19 material is heat-treated to provide a tensile strength in the 260,000-280,000 psi range. This makes the kit ideal for engines running high boost pressures or nitrous oxide, where cylinder head lift is a common concern. Because L19 is a high-strength material, it is susceptible to hydrogen embrittlement and corrosion; therefore, it requires proper lubrication and maintenance. By upgrading to this kit, you are investing in the longevity of your engine block and head gasket. Ensure your build is ready for the track with the best hardware available. Find your performance solutions at GGCRACING.
Other popular ARP products customers consider together:
