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The Nissan SR20DET is a popular choice among car enthusiasts and tuners, especially for those looking to achieve high horsepower outputs. One of the critical components in ensuring the engine’s reliability at elevated power levels is the use of ARP head studs. In this article, we will explore the true cost of ARP head studs for a 400 HP Nissan SR20DET build.
Understanding ARP Head Studs
ARP (Automotive Racing Products) is known for producing high-quality fasteners that are essential for performance engines. Head studs are a vital part of the engine assembly, holding the cylinder head tightly against the engine block. This prevents head gasket failure and maintains proper cylinder pressure, which is crucial for achieving high horsepower.
The Importance of Using ARP Head Studs
When building a 400 HP SR20DET, the stock head bolts may not be sufficient due to the increased pressure and heat generated by the engine. Here are some reasons why ARP head studs are essential:
- Increased Clamping Force: ARP head studs provide a higher clamping force compared to stock bolts, which helps in maintaining head gasket integrity.
- Better Material: Made from high-strength materials, ARP studs are designed to withstand the rigors of high-performance applications.
- Reusability: Unlike standard head bolts, ARP studs can often be reused, saving costs in future rebuilds.
Cost Breakdown of ARP Head Studs
The cost of ARP head studs can vary depending on the supplier and any additional components required for installation. Below is a breakdown of the typical costs associated with ARP head studs for a 400 HP SR20DET build:
- ARP Head Stud Kit: The price for an ARP head stud kit typically ranges from $150 to $250.
- Shipping Costs: Depending on the vendor, shipping can add an additional $10 to $30.
- Installation Costs: If you are not installing the studs yourself, labor costs can range from $100 to $200.
Comparing ARP Head Studs to Stock Head Bolts
When considering the investment in ARP head studs, it is essential to compare their benefits against stock head bolts. Here are some key differences:
- Performance: ARP studs are designed for high performance, while stock bolts may not hold up under extreme conditions.
- Durability: ARP materials are engineered for longevity, reducing the risk of failure.
- Cost-Effectiveness: While ARP studs have a higher upfront cost, their reliability can save money in the long run by preventing costly repairs.
Potential Additional Costs
In addition to the cost of the ARP head studs themselves, there are other potential expenses to consider when building a 400 HP SR20DET:
- Head Gasket: A high-performance head gasket is recommended, which can cost between $50 and $150.
- Machine Work: If the cylinder head needs resurfacing or other machine work, this can add $100 to $300 to your total costs.
- Other Fasteners: You may also need to replace other fasteners, such as intake and exhaust manifold bolts, which can add to your budget.
Conclusion
Investing in ARP head studs for a 400 HP Nissan SR20DET build is a crucial decision for ensuring engine reliability and performance. While the initial costs may seem high, the benefits of increased durability, performance, and peace of mind are well worth the investment. By understanding the true costs and potential additional expenses, you can make an informed decision for your build.