The ARP 202-5401 Nissan L20 Main Stud Kit provides a dependable fastening solution for engine builds, rebuilds, and performance applications. This kit is designed to fit Nissan L20 engines used in select 610, 620, 710, and 720 vehicles, offering a stud-based alternative to standard main bearing cap fasteners. Studs can help support consistent clamping during assembly while reducing the potential for thread wear in the engine block when service work is performed repeatedly.
Fits 1974-1975 Nissan 610, 1975-1979 Nissan 620, 1977 Nissan 710, and 1980 Nissan 720 applications listed for the L20 engine family. The ARP brand and part number 202-5401 make it easy to identify the correct kit for your project. Always confirm engine configuration, block compatibility, and available clearance before installation, especially when using aftermarket main caps, girdles, or other internal engine components.
For best results, clean and inspect all threaded holes and mating surfaces before assembly. Follow the applicable ARP installation guidance and use the recommended lubricant and torque procedure for the fastener material. Proper preparation and tightening practices help achieve reliable clamping performance and support long-term engine durability. This product is intended for automotive use and is not represented as an original equipment part or as endorsed by Nissan.

Features:

• ARP 202-5401 main stud kit for Nissan L20 engine applications


• Fits select 1974-1975 Nissan 610 models


• Fits select 1975-1979 Nissan 620 models


• Fits select 1977 Nissan 710 models


• Fits select 1980 Nissan 720 models


• Stud-based design supports consistent main bearing cap clamping


• Suitable for engine rebuilding, maintenance, and performance applications


• Verify engine configuration and installation clearance before use