1. Engine Cooling Components Deals
  2. sku: 20146787834637604
  3. GRIFFIN RADIATORS 1-70218

GRIFFIN RADIATORS 1-70218 Rod Radiator Downflow Center Inle 035127801025 1.5

fits model: Street.

Griffin Radiators 035127801025 1-70218 Universal Street Rod Radiator Downflow 1.5 Center Inle

( Brand: Griffin Radiators ), ( Manufacturer Part Number: 1-70218 ), ( Part Type: Rod Radiator ), ( UPC: 035127801025 )

Review GRIFFIN RADIATORS Universal Rod Radiator Downflow 1.5 Inle fits STREET

The **Griffin Radiators 035127801025 1-70218 Street Rod Radiator (Downflow, 1.5" Center Inlet)** is a meticulously engineered, high-performance cooling solution designed specifically for classic and custom street rod applications where precision, durability, and aesthetic appeal are paramount. This radiator represents the pinnacle of modern radiator technology, seamlessly blending cutting-edge functionality with the timeless craftsmanship expected in vintage automotive restoration. Built with a **downflow design**, it optimizes airflow efficiency by directing coolant downward through the core, reducing turbulence and improving heat dissipation while minimizing the risk of air binding a common issue in traditional upflow radiators. The **1.5-inch center inlet** ensures compatibility with a wide range of street rod cooling systems, including those with standard or slightly modified engine bay layouts, making it an ideal choice for enthusiasts seeking both versatility and performance.

Constructed from **high-grade aluminum alloy**, this radiator offers an exceptional strength-to-weight ratio, ensuring robust structural integrity without compromising on lightweight performance. The core is engineered with **optimized fin density and spacing**, maximizing surface area for superior heat transfer while maintaining a compact footprint that fits neatly into the confined spaces of classic rod chassis. The **pressure-cast construction** eliminates weak points found in some aftermarket alternatives, providing enhanced resistance to corrosion and thermal stress, which is critical for high-performance applications where coolant temperatures can fluctuate dramatically. Additionally, the radiator features **reinforced end tanks** with precision-machined mounting flanges, ensuring a secure and leak-free connection to the cooling system. These tanks are designed to accommodate standard street rod hoses and fittings, including those used in aftermarket cooling setups, while the **integrated overflow drain** simplifies maintenance and reduces the risk of coolant loss during servicing.

Aesthetically, the Griffin 035127801025 radiator exudes a clean, understated elegance that complements the sleek lines of a street rod without detracting from its vintage charm. The **smooth, matte-finished aluminum core** and polished end tanks offer a professional, factory-like appearance that enhances the overall visual appeal of the vehicle s engine bay. For those seeking a more customized look, the radiator s design allows for easy integration with aftermarket grille and header systems, enabling enthusiasts to create a cohesive, high-performance cooling package that aligns with their vehicle s unique aesthetic vision. Whether installed in a restored 1950s Chevrolet Bel Air, a custom Ford Thunderbird, or any other street rod, this radiator not only delivers outstanding cooling performance but also contributes to the vehicle s classic yet modern aesthetic.

Under the hood, the Griffin radiator excels in performance, thanks to its **efficient core design and robust construction**. The downflow configuration minimizes coolant turbulence, allowing for smoother operation and reduced strain on the water pump and thermostat, which is particularly beneficial for high-revving street rod engines. The radiator s **high-flow capacity** ensures that even under heavy loads such as those experienced during drag racing or spirited driving the cooling system remains stable and effective. Furthermore, the **low-profile design** allows for greater flexibility in engine bay layout, accommodating aftermarket components like high-performance radiator fans, intercoolers, or auxiliary cooling systems without sacrificing functionality. Built to meet or exceed industry standards, this radiator is backed by Griffin s reputation for quality, offering enthusiasts a reliable, long-lasting solution that can handle the demands of both daily driving and weekend track sessions.

In summary, the **Griffin Radiators 035127801025 1-70218 Street Rod Radiator (Downflow, 1.5" Center Inlet)** is a standout choice for street rod builders and restorers who demand both performance and precision. With its advanced downflow design, durable aluminum construction, and seamless integration with classic and custom cooling systems, this radiator ensures optimal heat rejection while maintaining the integrity and character of the vehicle s original design. Whether used in a meticulously restored classic or a cutting-edge custom rod, it delivers the cooling power and reliability needed to keep high-performance engines running at their best.

### **Pros and Cons of buying a Griffin Radiators 035127801025 (1-70218 Street Rod Radiator, Downflow, 1.5" Center Inlet)**

#### **Pros:**

1. **High-Quality Construction** Griffin Radiators are known for durable, well-built components designed to withstand high-performance applications. The use of heavy-gauge materials and proper finning ensures efficient heat dissipation.

2. **Compatibility with Classic and Custom Engines** This radiator is specifically designed for the **1-70218 engine family**, which includes many classic American V8s (e.g., Ford 351 Cleveland, Chevy 350/400, and similar street rod builds). It fits common downflow applications, making it a reliable choice for restomod or custom projects.

3. **Downflow Design** The downflow configuration helps reduce air turbulence and improves airflow efficiency, which can lead to better cooling performance compared to older crossflow designs.

4. **Standardized Sizing** The **1.5" center inlet** is a common size, making it easier to find compatible hoses, clamps, and mounting brackets. This reduces the need for custom modifications.

5. **Good Cooling Capacity** With proper fin density and core size, this radiator should handle moderate to high-performance applications (e.g., stock to mild turbocharged builds) without overheating, assuming the cooling system is properly sized.

6. **Widely Available Parts & Support** Griffin is a reputable brand with decades of experience, meaning replacement parts (like tanks, seals, or core supports) are easier to source than with lesser-known manufacturers.

7. **Aesthetic Appeal** The design is clean and functional, fitting well in both modern and classic builds. It avoids overly aggressive styling that might interfere with airflow.

---

#### **Cons:**

1. **Limited to Specific Engine Applications** This radiator is **engine-specific** (1-70218 family). If you re building a different engine (e.g., a small-block Chevy with a different water pump or thermostat housing), compatibility may require additional adapters or modifications.

2. **Potential for Overheating in High-Performance Use** While suitable for stock to mildly modified engines, **forced induction (turbo/supercharged) or extreme high-RPM applications** may require a larger radiator (e.g., 2-row or extended-core) for adequate cooling. The stock size may struggle with aggressive tuning without upgrades to the cooling system (e.g., larger fan, better thermostat, or auxiliary radiator).

3. **Weight Consideration** Radiators are inherently heavy, and this one is no exception. In lightweight street rod builds, the added weight may slightly impact handling, though the difference is usually negligible unless the vehicle is extremely minimalist.

4. **Mounting Challenges** Downflow radiators require precise mounting to ensure proper water flow and avoid air pockets. Improper installation (e.g., tilted or misaligned) can lead to poor cooling or even radiator failure. Some builds may need custom brackets or supports.

5. **Cost Relative to Alternatives** While not excessively expensive, Griffin radiators are **pricier than basic aftermarket or OEM replacements**. For budget-conscious builds, cheaper alternatives (e.g., some Chinese brands or remanufactured OEM cores) exist, though with varying quality.

6. **Limited Customization** Unlike some high-end performance radiators, this model offers **minimal customization options** (e.g., no adjustable fin density or core length variations). If you need a non-standard size, you may have to compromise.

7. **Potential for Leaks Over Time** Like all radiators, this one can develop leaks at seals or tanks, especially if the cooling system is neglected (e.g., hard water buildup, corrosion, or improper flush cycles). Regular maintenance is required to extend its lifespan.

---

### **Conclusion:**

The **Griffin Radiators 035127801025 (1-70218 Street Rod Downflow, 1.5" Center Inlet)** is a **solid, reliable choice** for classic and custom builds centered around the **1-70218 engine family**. It offers **good cooling performance for stock to mildly modified applications**, durable construction, and compatibility with common street rod cooling systems. However, it is **not ideal for extreme high-performance builds** without additional upgrades (e.g., larger radiator, upgraded fan, or auxiliary cooler).

If your project involves **stock or mildly tuned engines**, this radiator is a **safe, high-quality investment**. For **forced induction or aggressive performance applications**, consider a **larger or extended-core radiator** (e.g., a 2-row or high-flow Griffin model) to ensure adequate cooling.

---

### **Recommendation:** - **Buy this radiator if:**

- You re building a **1-70218-based street rod or restomod project** with stock or mild modifications.

- You prioritize **durability, compatibility, and ease of installation**.

- Your cooling system (fan, thermostat, hoses) is **properly sized** for the application.

- **Consider alternatives if:**

- You need **forced induction (turbo/supercharged) performance** opt for a **larger radiator** (e.g., Griffin 2-row or a high-flow aftermarket model).

- Your budget is tight compare with **remanufactured OEM cores** or other reputable brands (e.g., **Melling, Spal, or Bowling**).

- You require **non-standard sizing** (e.g., different inlet/outlet configurations).

**Final Verdict:** For the right application, this is a **well-engineered, dependable radiator** that balances performance, compatibility, and longevity. Just ensure your entire cooling system is matched appropriately to avoid overheating.

Details:

Core Size in: 15.5x21x2.68. Outlet Location: Bottom Right. Row Quantity: American Express.

Transmission Cooler: Yes. Radiator Material: Lightweight Aluminum. Inlet Location: Top Center. Tube Size: 1.25 in Mega Cool.

Cooler Fittings: 1/8 NPT.

specifications ocoosys:

  • for models: Street
  • brand: Griffin Radiators
  • mpn: 1-70218
  • part type: Rod Radiator
  • upc: 035127801025

seller ocoosys:

  • rating: 99.2%
  • city: , Ohio
  • # reviews: 618955

payments ocoosys:

  • credit card: Mastercard
  • wallet: Apple-pay
  • other

general ocoosys:

  • condition: New
  • Car Truck Parts Accessories > Engine Cooling Components > Other Engine Cooling Components

returns ocoosys:

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

offer ocoosys:

  • started: March 4, 2026
  • quantity: 1
  • options: Ship-to-home
  • availability: In Stock
  • sold: 0

shipping ocoosys:

  • class: Standard
  • cost: $0.00
  • type: Fixed
  • transit: 18-29 Days
  • service: Standard
for models: street, part type: rod radiator,
category: auto parts > car truck parts accessories > engine cooling components, sku: 20146787834637604,
Griffin Radiators 1-70218 Is Similar To:
ocoosys logo
1 offer $422.00 USD
  • New. Offer #1 priced at $422.00 + $0.00 shipping estimate = $422.00* total. FREE SHIPPING

Copyright © ocoosys.com