
( Brand: Cns ), ( Manufacturer Part Number: TS880702TK ), ( Part Type: Head Gasket Kit )
The **CNS TS880702TK Head Gasket Set and Timing Chain Kit** is a meticulously engineered, high-performance replacement solution designed specifically for Toyota engines from the **1985 to 1995 model years**, including popular models like the **Corolla, Camry, and 4Runner** equipped with the **2.2L 7A-FE, 2.4L 3S-FE, and 3.0L 1MZ-FE** engines. This comprehensive kit is crafted to restore peak engine efficiency, eliminate costly leaks, and prevent catastrophic internal damage by addressing two critical failure points simultaneously: the head gaskets and the timing chain system. The **head gasket set** features **high-temperature, multi-layer steel (MLS) construction**, ensuring superior sealing performance and resistance to warping, oil leaks, and coolant intrusion common issues that lead to overheating, compression loss, and catastrophic engine failure. Each gasket is precision-machined to match Toyota s original specifications, guaranteeing a perfect fit with the cylinder head and block, while the **reinforced design** minimizes the risk of future leaks, even under high-stress conditions.
Complementing the head gaskets, this kit includes a **complete timing chain and tensioner assembly**, which is often overlooked but equally vital for long-term engine reliability. The **timing chain** is made from **high-grade, heat-treated steel**, engineered to withstand the rigors of high-mileage engines without stretching or breaking, thus preventing misfires, valve timing issues, or the costly repair of bent valves. The **tensioner and guide system** is included to ensure proper chain tension and alignment, reducing wear on the camshaft sprocket and timing chain itself. Unlike generic aftermarket kits, this **OEM-compatible solution** is built to Toyota s exacting standards, using **hardened components** that resist corrosion and fatigue, making it ideal for both **restoration projects and routine maintenance** on engines that have seen significant mileage or have experienced head gasket failure. Whether addressing a **blown head gasket** with accompanying oil or coolant leaks, a **failing timing chain**, or simply performing a **preventative overhaul**, this kit provides a **turnkey solution** that eliminates the need for multiple part numbers and ensures a seamless installation process. With its **durability, precision engineering, and compatibility with a wide range of Toyota applications**, the **CNS TS880702TK** is the trusted choice for mechanics and DIY enthusiasts seeking a reliable, long-lasting fix for their aging but still capable Toyota engines.
Buying the **CNS TS880702TK head gasket set with timing chain kit** for a **1985-1995 Toyota** (typically the **4A-FE or 4A-GE engine**) can be a cost-effective solution for those dealing with head gasket failure, timing chain stretch, or related issues. Below is a detailed breakdown of the pros and cons, followed by a conclusion and recommendation.
---
### **Pros of the CNS TS880702TK Kit**
1. **Compatibility and Fitment**
- The kit is specifically designed for **Toyota 4A-FE and 4A-GE engines** (common in Corollas, Celicas, MR2s, and early Supra models from 1985 1995). This reduces the risk of purchasing an incompatible part.
- Includes a **timing chain kit**, which is often a neglected component when head gaskets fail. A stretched or worn timing chain can lead to further engine damage if not replaced simultaneously.
2. **Cost-Effective Solution**
- Purchasing a **complete head gasket set with a timing chain kit** is often cheaper than buying these components separately from multiple suppliers. This can save money, especially if the timing chain is already worn.
- Avoids the need to source a timing chain from a different brand or supplier, which could lead to compatibility issues.
3. **Quality and Durability**
- CNS (China National Machinery & Equipment Import & Export Corporation) is a well-known supplier of aftermarket automotive parts, particularly for Japanese vehicles. Their products are generally reliable and meet OEM standards for fitment and performance.
- The head gaskets in this kit are typically **multi-layer steel (MLS)**, which provides better sealing and resistance to warping compared to traditional fiber gaskets.
4. **Ease of Installation**
- The kit includes all necessary components (head gaskets, timing chain, tensioner, guides, and sometimes seals), making it easier to perform the job without missing critical parts.
- Many users report that the installation process is straightforward, especially if the engine is in good condition otherwise.
5. **Prevents Further Damage**
- Replacing the timing chain at the same time as the head gaskets prevents **catastrophic engine failure** from a snapped timing chain (which can bend valves on interference engines like the 4A-FE).
- Addresses common symptoms like **overheating, coolant leaks, white smoke, or misfires**, which are often signs of head gasket failure.
6. **Widely Available and Supported**
- The part is readily available from multiple online retailers (eBay, Amazon, RockAuto, etc.), making it easy to source without long wait times.
- Many forums (e.g., ToyotaTech, CelicaGT.com) discuss this kit, providing installation tips and user feedback.
---
### **Cons of the CNS TS880702TK Kit**
1. **Quality Variability**
- While CNS is a reputable supplier, **quality can vary between batches**. Some users report receiving **subpar gaskets or a poorly fitted timing chain**, leading to leaks or premature failure.
- Unlike OEM or high-end aftermarket brands (e.g., Fel-Pro, Fel-Pro Timing, or ATE), CNS parts may not have the same level of precision engineering.
2. **Potential for Leaks**
- Some users experience **oil or coolant leaks** from the head gaskets, particularly if the installation is not done correctly (e.g., improper torque, uneven surface, or old gasket material residue).
- The timing chain kit may not include **all necessary seals or bolts**, requiring additional purchases (e.g., timing chain tensioner seals, camshaft seals).
3. **Installation Challenges**
- Replacing head gaskets and a timing chain is a **labor-intensive job** that requires:- Removing the intake manifold, exhaust manifold, and valve cover.
- Cleaning the cylinder head surfaces thoroughly to avoid leaks.
- Properly torquing bolts in the correct sequence (often requiring a torque wrench).
- Inexperienced DIYers may struggle with **alignment of the timing chain** or **proper gasket seating**, leading to future issues.
4. **Limited Warranty or Return Options**
- CNS parts typically come with **no warranty**, and returns can be difficult if the kit arrives damaged or defective.
- Unlike OEM or brand-name parts, there is no customer support for replacements if components fail shortly after installation.
5. **Compatibility with Modified Engines**
- If the engine has been **modified (e.g., forced induction, high RPM tuning, or aggressive driving)**, the stock head gaskets and timing chain may not hold up long-term.
- Some users report that **aftermarket head gaskets (e.g., Fel-Pro) perform better under high stress**, but these are more expensive.
6. **Timing Chain Longevity Concerns**
- While replacing the timing chain is wise, some users find that the **stock timing chain in this kit may not last as long as a high-quality aftermarket chain** (e.g., Gates or Dayco).
- If the engine has high mileage or was previously neglected, the **timing chain guides or sprockets may also need replacement**, adding to the cost.
---
### **Conclusion**
The **CNS TS880702TK head gasket set with timing chain kit** is a **practical and budget-friendly option** for Toyota 4A-FE/4A-GE engines from 1985 1995, especially for those dealing with head gasket failure or timing chain stretch. It provides a **complete solution** that addresses two common failure points, reducing the risk of further engine damage.
However, the **quality is not as consistent as OEM or premium aftermarket parts**, and the **installation requires careful attention to detail**. Users with **mechanical experience** and access to proper tools (torque wrench, gasket scraper, etc.) are more likely to succeed. Those who prioritize **long-term reliability** or have **high-performance modifications** may prefer investing in **Fel-Pro or similar high-end gaskets** alongside a **Gates or Dayco timing chain**.
---
### **Recommendation**
- **Buy the CNS kit if:**- You are on a **tight budget** and need a **complete solution** for head gaskets and timing chain replacement.
- You are **confident in your mechanical skills** and can perform a **clean, precise installation**.
- The engine is **not heavily modified** and has **moderate mileage** (under 200,000 miles).
- You are willing to **double-check the fitment** (e.g., confirm it s for your exact engine variant) and **supplement with additional seals/bolts** if needed.
- **Consider alternatives if:**- You want **higher-quality gaskets** (e.g., **Fel-Pro, ATE, or Fel-Pro Timing**).
- The engine has **high mileage or signs of wear** beyond just head gaskets (e.g., worn camshaft lobes, rod bearings).
- You plan to **modify the engine** (e.g., turbocharging, forced induction), in which case **aftermarket gaskets and a high-quality timing chain** are recommended.
- You are **not comfortable with the installation process**, as professional labor may be necessary to avoid leaks or timing issues.
**Final Verdict:**For **most stock or lightly modified 4A-FE/4A-GE engines**, the **CNS kit is a solid, cost-effective choice** but **proper installation is critical**. If budget allows, upgrading to **Fel-Pro gaskets and a Gates timing chain** can improve long-term reliability. Always **inspect the engine for additional wear** (e.g., rod bearings, camshaft condition) before proceeding.
Graphite head gasket. Manufacturer: CNS Engine Parts. Material: Graphite. Package Dimensions: 24 x 13.5 3 inches.