ARP 235-3703 Head Bolt Big Block Bowtie Alumi Kit 672036009755

( Brand: Arp ), ( Manufacturer Part Number: 235-3703 ), ( Part Type: Head Bolt Block ), ( UPC: 672036009755 )

Review ARP Professional Series Head Bolt Kit Big Block Chevy Late Bowtie Alumi

The **ARP 235-3703 Head Bolt Kit** is a premium, high-performance solution designed exclusively for the demanding requirements of **big block Chevy V8 engines**, particularly those featuring the iconic **"Bowtie" aluminum cylinder heads** found in modern high-output applications. Engineered with ARP s signature precision and durability, this bolt kit is meticulously crafted to withstand extreme loads, high RPMs, and the relentless stresses of forced induction or high-compression performance builds. Each bolt in this kit is **1/2-inch in diameter**, featuring a **3700 psi tensile strength**, ensuring unmatched reliability under the most aggressive operating conditions. The bolts are **heat-treated and fully threaded**, eliminating the need for separate nuts, which simplifies installation while maximizing clamping force. Constructed from **high-strength, corrosion-resistant alloy steel**, these bolts are **black oxide finished** for added protection against rust and wear, making them ideal for both street and strip applications. The **ARP 3700 series** is renowned for its ability to maintain consistent preload under thermal cycling, preventing bolt stretch and ensuring long-term integrity critical for engines pushing beyond factory limits. Whether you're building a **supercharged, turbocharged, or naturally aspirated big block Chevy**, this bolt kit provides the critical hold-down strength needed to keep your aluminum heads securely fastened, reducing the risk of catastrophic failure. ARP s reputation for **race-proven engineering** makes this kit a trusted choice among performance enthusiasts, drag racers, and professional engine builders who demand nothing less than the best in bolted assembly solutions.

### **Pros and Cons of buying a ARP 235-3703 Head Bolt Kit for a Big Block Chevy (Bowtie Aluminum)**

#### **Pros**

1. **Enhanced Strength and Durability** ARP head bolts are forged from high-strength steel and feature a unique design that distributes clamping force more evenly across the cylinder head. This reduces the risk of warping, cracking, or bolt stretch under high RPMs or extreme power levels.

2. **Precision Engineering** The bolts are machined to exact specifications, ensuring consistent torque application and optimal compression across the head gasket. This helps maintain cylinder head integrity under heavy loads.

3. **Compatibility with High-Performance Engines** Designed for big block Chevy applications, these bolts are suitable for forced induction (turbo/supercharged) and naturally aspirated high-performance builds, including aluminum heads (Bowtie or other brands).

4. **Reduced Risk of Bolt Failure** Traditional bolts can stretch or break under extreme stress, leading to catastrophic head gasket failure or cylinder head damage. ARP bolts are engineered to handle high torque and thermal cycling without failure.

5. **Easier Installation and Removal** The bolts feature a hex head with a smooth, non-corrosive finish, making them easier to install and remove compared to some aftermarket alternatives that may require special tools.

6. **Long-Term Reliability** ARP is a well-established brand with decades of experience in high-performance fasteners. Their products are trusted by racers and builders for their consistency and durability.

7. **Supports Aluminum Head Stability** Aluminum heads are more prone to warping than cast iron, and proper head bolts help maintain structural integrity, especially under high boost or aggressive camshafts.

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#### **Cons**

1. **Higher Upfront Cost** ARP head bolts are significantly more expensive than OEM or generic aftermarket bolts. For a full kit, the price can range well above $200, which may be a barrier for budget-conscious builders.

2. **Requires Proper Installation** While ARP provides detailed instructions, improper torque application (either too tight or too loose) can negate the benefits. Over-torquing can damage the head or studs, while under-torquing leaves the head unsupported.

3. **Not a Standalone Fix for Head Issues** If the cylinder head itself is warped, cracked, or damaged, replacing bolts alone won t resolve the problem. A full head inspection and potential machining may still be necessary.

4. **Specialized Tools Needed** While not extreme, you ll need a quality torque wrench (preferably digital) and possibly a stud wrench for proper installation. Some builders may already have these tools, but others may need to invest.

5. **Limited Use in Stock or Mild Applications** For a stock or mildly modified engine running at low RPMs and low boost, the cost-benefit ratio may not justify the expense. These bolts are best suited for high-performance or forced induction builds.

6. **Potential for Overkill in Some Cases** If the engine is not pushing extreme power (e.g., below 600 700 whp), the benefits of ARP bolts may not be as noticeable, making them a premium upgrade rather than a necessity.

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### **Ending Conclusion**

The **ARP 235-3703 head bolt kit** is one of the best aftermarket options for big block Chevy aluminum heads, particularly in high-performance, forced induction, or extreme power applications. Its superior strength, even force distribution, and reliability make it a worthwhile investment for builders pushing serious horsepower. However, the high cost and the need for proper installation mean it may not be justified for stock or mildly modified engines.

For **aluminum-head big block Chevy builds running 500 whp (naturally aspirated) or 400 whp (forced induction)**, the ARP bolts are highly recommended to prevent catastrophic failure and ensure long-term reliability. For lower-power applications, a more budget-friendly bolt kit (such as from **MegaForce, JE, or even high-quality OEM replacements**) may suffice.

### **Final Recommendation**

- You re running a **big block Chevy with aluminum heads** in a high-performance or forced induction setup (500 whp NA or 400 whp FI).

- You prioritize **maximum reliability and head integrity** under extreme conditions.

- You re willing to invest in **premium fasteners** for long-term durability.

- Your engine is **stock or mildly modified** (below 500 whp NA or 350 whp FI), where the cost may not be justified.

- You re on a **tight budget** and can find equally strong (but cheaper) bolts from reputable brands like **MegaForce or JE**.

- You re unsure about installation consult a professional mechanic to ensure proper torque application.

For most **serious big block Chevy builders**, the ARP head bolt kit is a **strong recommendation** it s an investment in preventing costly failures down the line. However, weigh the power levels and budget before committing.

Details:

American Express.

part #: 2353703 prices

• $214.99-$262.80

specifications pistonrinro:

• for makes: Chevy
• brand: Arp
• mpn: 235-3703
• part type: Head Bolt Block
• upc: 672036009755

payments pistonrinro:

• credit card: Visa
• other
• wallet: Google-pay

seller pistonrinro:

• city: , Ohio
• rating: 99.3%
• # reviews: 620207

offer pistonrinro:

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

returns pistonrinro:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

general pistonrinro:

• Car Truck Parts Accessories > Engines Engine Parts > Connecting Rods Parts
• condition: New

shipping pistonrinro:

• class: Standard
• transit: 14-22 Days
• type: Fixed
• cost: $0.00
• service: Standard

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