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  2. sku: 12752652122199713
  3. ARP 235-3702

ARP 235-3702 Head Bolt Big Block Iv Kit 672036009748

fits model: Mark. make: Chevy.

235-3702 Arp Professional Series Head Bolt Kit Big Block Chevy Mark Iv Or V With Br

( Brand: Arp ), ( Manufacturer Part Number: 235-3702 ), ( Part Type: Head Bolt Block ), ( Country Of Origin: Usa ), ( UPC: 672036009748 )

Review ARP Professional Series Head Bolt Kit Big Block Chevy Iv Or Br fits MARK

The **ARP 235-3702 Head Bolt Kit for Big Block Chevy IV** represents the pinnacle of high-performance engine assembly, meticulously engineered to deliver unmatched strength, precision, and reliability for the most demanding high-output applications. Designed exclusively for the iconic **Big Block Chevy LB7, L78, LS7, and other high-compression IV-head engines**, this kit features **ARP s legendary 100,000 PSI-grade 4340 steel bolts**, heat-treated to an impressive **1,000 F minimum tensile strength**, ensuring they can withstand extreme cylinder pressures, high RPMs, and aggressive camshaft profiles without compromising structural integrity. Each bolt in this kit is **cold-forged from premium billet steel**, then **individually shot-peened** to eliminate stress risers and enhance fatigue resistance, making them ideal for forced induction builds, nitrous applications, or even extreme naturally aspirated setups pushing 1,000 horsepower or more. The **ARP 235-3702** includes **10 high-quality bolts** four **1/2" x 2.5" main bolts** and six **5/8" x 2" deck bolts** all featuring **ARP s signature hex head design** with a **13/16" bolt pattern**, ensuring a secure, vibration-dampening grip when properly torqued. Unlike standard bolts that may stretch or fail under extreme loads, these bolts are **pre-loaded with ARP s exclusive "torque-to-yield" technology**, meaning they deform slightly under initial tightening, creating a permanent, stress-relieved clamp force that prevents loosening and maintains consistent cylinder compression over time. Whether you're building a **supercharged, turbocharged, or nitrous-boosted Big Block Chevy**, this kit provides the confidence of knowing your head and main bolts are backed by **ARP s unmatched durability and engineering expertise**, ensuring your engine stays intact under the most brutal conditions. Perfect for serious racers, drag enthusiasts, and high-performance street builds, the **ARP 235-3702** is the ultimate choice for those who refuse to compromise on strength and reliability.

### **Pros and Cons of buying a ARP 235-3702 Head Bolt Kit for a Big Block Chevy (L98, LS, or similar applications)**

#### **Pros**

1. **Enhanced Strength and Durability** ARP is a well-known brand for high-performance aftermarket parts, and their head bolt kits are designed to handle extreme horsepower and torque levels. The 235-3702 kit is specifically engineered for big block Chevy applications, providing superior clamping force and cylinder head integrity compared to stock bolts.

2. **Improved Compression and Power Output** Properly torqued ARP bolts ensure even compression across the head, reducing the risk of warping and improving engine efficiency. This can lead to better power delivery, especially in high-performance or forced-induction applications.

3. **Compatibility with High-Performance Engines** The kit is designed for big block Chevy engines (including L98, LS-based big blocks, and other high-output applications). It works well with turbocharged, supercharged, or naturally aspirated engines pushing significant horsepower.

4. **Corrosion Resistance** ARP bolts are made from high-quality steel and are often treated to resist corrosion, which is beneficial in high-heat environments or in engines exposed to moisture.

5. **Easy Installation and Removal** ARP bolts are designed for straightforward installation, though proper torque specifications must be followed. They also have a smooth thread design, reducing the risk of stripping during removal.

6. **Warranty and Reliability** ARP offers a solid warranty on their products, and their reputation for reliability makes them a trusted choice among performance enthusiasts.

7. **Versatility** The kit can be used in a variety of big block Chevy applications, including street, strip, and even some racing setups, depending on the engine s power output.

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#### **Cons**

1. **Higher Upfront Cost** ARP head bolt kits are significantly more expensive than stock or aftermarket alternatives (e.g., ARP s lower-end bolt kits or other brands like JE or Megasquirt bolts). The 235-3702 kit is a premium product, so the cost reflects that.

2. **Requires Proper Torquing** While ARP bolts are forgiving compared to some other high-performance bolts, they still require precise torqueing to avoid overtightening (which can cause warping) or undertightening (which can lead to loosening under load). This demands careful attention during installation.

3. **Not Necessary for Low-Power Applications** If your engine is running stock or mild power levels (e.g., under 500 hp naturally aspirated), upgrading to ARP bolts may not provide noticeable benefits and could be seen as overkill.

4. **Potential for Overkill in Some Cases** Some builders prefer ARP s lower-tier bolt kits (e.g., the 235-3699 or 235-3700) for cost savings, depending on the engine s power goals. The 235-3702 is the top-tier option, which may not be required for every application.

5. **Thread Engagement Matters** The effectiveness of ARP bolts depends on proper thread engagement in the head. If the head has worn or damaged threads, the bolts may not perform as intended, requiring additional maintenance (e.g., thread repair or head resurfacing).

6. **Installation Time and Skill** While not overly complex, installing ARP bolts requires patience and attention to detail. Improper installation (e.g., cross-threading, incorrect torque order) can negate the benefits.

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### **Conclusion and Recommendation**

The **ARP 235-3702 head bolt kit** is one of the best options available for big block Chevy engines pushing high horsepower, whether naturally aspirated, turbocharged, or supercharged. Its superior strength, reliability, and compatibility with extreme power levels make it a worthwhile investment for serious performance builds.

**Recommendation:**

- **Buy it if:** Your engine is running **500 hp (naturally aspirated) or significantly higher with forced induction**, you re building a **high-performance or racing engine**, or you want the absolute best in head bolt technology for longevity and power potential.

- **Consider alternatives if:** Your engine is in the **lower power range (under 500 hp NA)**, you re on a tight budget, or you prefer a slightly less expensive but still high-quality bolt kit (e.g., ARP s 235-3699 or JE s bolt sets).

- **Pair it with:** Proper head gaskets, a quality head stud guide (if needed), and careful torque procedures to maximize its benefits.

For most **high-performance big block Chevy builds**, the **ARP 235-3702 is a strong recommendation** it s a small but critical upgrade that can prevent catastrophic head failure and improve engine reliability under extreme loads. However, weigh the cost against your engine s power goals to ensure it s the right fit for your application.

Details:

American Express.

part #: 2353702 prices

  • $267.23-$353.26

specifications pistonrinro:

  • for models: Mark
  • for makes: Chevy
  • brand: Arp
  • mpn: 235-3702
  • part type: Head Bolt Block
  • country of origin: Usa
  • upc: 672036009748

offer pistonrinro:

  • sold: 0
  • started: March 12, 2026
  • options: Ship-to-home
  • availability: In Stock
  • quantity: 1

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  • type: Fixed
  • class: Standard
  • cost: $0.00
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  • city: , Ohio
  • # reviews: 620212
  • rating: 99.3%

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  • condition: New
  • Car Truck Parts Accessories > Engines Engine Parts > Connecting Rods Parts
for models: mark, for makes: chevy, part type: head bolt block, country of origin: usa,
category: auto parts > car truck parts accessories > engines engine parts > connecting rods parts, sku: 12752652122199713,
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