HONDA 100035R7A10 Engine Cylinder Head

( Manufacturer Part Number: 100035R7A10 ), ( Manufacturer Warranty: 90 Day ), ( Genuine Oem: Yes ), ( Seller Notes: 1.5l Came Off Good Engine Had A Broken Block ), ( Interchange Item Code: 306 ), ( Color: Orange ), ( Reference Oe/oem: 100035r7a10, 100035r7a12, 121005r1000, 141105r1j00, 141205r1j00 ), ( Compatibility: Fit 18-20 ), ( Type: Engine Cylinder Head )

Review HONDA Used Engine Cylinder Head Fit Grade fits 2018

The **Honda 100035-R7A10 engine cylinder head** is a precision-engineered component designed exclusively for the high-performance **R7A10 1.5-liter inline-four cylinder engine**, found in select 2018 Honda models, including the **Honda Civic Type R (CK7)** and certain variants of the **Honda Civic Si**. Crafted from high-grade **aluminum alloy**, this cylinder head is built to deliver exceptional durability, thermal efficiency, and performance under demanding conditions, making it a critical element in the engine s overall reliability and power output. The head features a **dual overhead camshaft (DOHC) design**, allowing for optimized valve timing and airflow, which enhances both throttle response and fuel efficiency. Each of the four intake and exhaust valves is meticulously machined to ensure precise sealing and minimal friction, contributing to the engine s smooth operation and longevity. The **integrated spark plug bosses** are strategically positioned for optimal ignition performance, while the **intake ports** are contoured to maximize airflow into the combustion chambers, supporting the engine s high-revving capabilities. The **exhaust ports** are designed to efficiently expel combustion gases, reducing backpressure and further improving efficiency. This cylinder head is equipped with **high-pressure fuel injection** compatibility, ensuring precise fuel delivery for optimal combustion and power generation. Additionally, the **valve springs and retainers** are engineered to withstand the stresses of high RPM operation, reducing the risk of valve float and maintaining consistent performance even under aggressive driving conditions. The **cooling passages** within the head are strategically routed to dissipate heat quickly, preventing overheating and ensuring consistent performance across a wide range of operating temperatures. Whether installed in a stock or modified application, this cylinder head is a testament to Honda s commitment to engineering precision, reliability, and performance, making it an essential component for enthusiasts seeking to maintain or enhance the power and efficiency of their 2018 Honda R7A10-powered vehicles.

### **Pros and Cons of Buying a Honda 100035-R7A10 Engine Cylinder Head (2018 Model)**

1. **OEM Quality and Reliability** Honda is known for durable, high-performance engines, and the R7A10 (used in models like the Civic Type R, Integra Type R, and NSX) is a well-regarded powerplant. A genuine or high-quality aftermarket cylinder head ensures proper fitment and longevity.

2. **Performance Potential** The R7A10 is a high-revving, naturally aspirated engine with a strong reputation for power and responsiveness. A properly rebuilt or upgraded cylinder head can enhance airflow, improve horsepower, and maintain reliability if maintained correctly.

3. **Aftermarket Support** Due to the engine s popularity (especially in tuning circles), there is a wide availability of parts, upgrades (e.g., headers, camshafts, intake manifolds), and tuning support. This makes modifications easier and more cost-effective.

4. **Long-Term Durability** When properly maintained, the R7A10 is known for lasting well beyond 100,000 miles, especially with regular valve adjustments, oil changes, and head work. A fresh cylinder head can extend its lifespan significantly.

5. **Resale Value** Honda engines, particularly in high-performance applications, retain value well. A well-documented, restored, or upgraded R7A10 can be appealing to collectors or tuners.

6. **Compatibility with Tuning** The engine responds well to forced induction (turbo/supercharger) and camshaft upgrades, making it a favorite for drift, track, and street tuning. A new or rebuilt head is essential for such modifications.

7. **Ease of Maintenance** Compared to some other high-performance engines, the R7A10 has straightforward maintenance procedures, including head removal, valve adjustment, and gasket replacement.

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1. **High Cost** A genuine Honda cylinder head (OEM) for the R7A10 can be expensive, especially if sourced from a reputable dealer or salvage yard. Aftermarket options may offer cost savings but could compromise quality if not from a trusted brand.

2. **Specialized Knowledge Required** The R7A10 is a precision engine, and improper handling during installation (e.g., warped heads, incorrect gasket torque, or improper sealing) can lead to leaks, overheating, or catastrophic failure. Professional installation is often recommended.

3. **Limited Availability of OEM Parts** While aftermarket parts are plentiful, OEM cylinder heads may be harder to find, especially for older models. Salvage yards or Honda specialty shops may charge premium prices for used parts.

4. **Potential for Counterfeit Parts** The aftermarket for Honda parts can be flooded with knockoffs or low-quality replicas. Buying from untrusted sellers risks receiving substandard components that fail prematurely.

5. **Maintenance Intensity** The R7A10 requires regular valve adjustments (every 30,000 40,000 miles) and careful attention to oil quality and cooling systems. Neglecting these can lead to expensive repairs, even with a new head.

6. **Weight and Size** The R7A10 is a heavy engine (around 150 160 lbs with accessories), which can add to the overall weight of the vehicle. This may impact handling in lightweight applications (e.g., stripped-down drift cars).

7. **Compatibility Issues** If the cylinder head is being used in a non-OEM application (e.g., swapping into a different chassis), bolt-on compatibility, wiring, and sensor requirements must be verified to avoid functionality issues.

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The **Honda 100035-R7A10 cylinder head (2018)** is a high-quality, performance-oriented component that can significantly benefit an engine build, restoration, or upgrade project. Its reliability, tuning potential, and aftermarket support make it a strong choice for enthusiasts. However, the **cost, specialized installation requirements, and maintenance demands** must be carefully considered.

For most buyers, **prioritizing quality over cost** is advisable whether through a **genuine Honda part, a reputable aftermarket brand (e.g., JE, Scat, or BMR), or a professionally rebuilt head**. If purchasing used, verify the head s condition (warpage, cracks, or wear) and ensure it matches the engine s specifications.

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- Purchase a **genuine Honda cylinder head** from an authorized dealer or a trusted salvage yard. If budget allows, this is the safest option for long-term durability.

- Opt for a **high-quality aftermarket head** from brands like **JE, Scat, or BMR**, which offer competitive pricing without sacrificing performance. Ensure the part is designed for the R7A10 and includes proper gaskets and hardware.

- If the head is being used in a **custom or non-OEM application**, confirm compatibility with the engine block, intake manifold, and exhaust headers. Consider consulting a **Honda specialist or engine builder** to avoid pitfalls.

- **Unknown or cheap aftermarket parts** that may fail prematurely.

- **Skipping professional installation** if unsure about torque specs, gasket sealing, or valve adjustment.

- Regardless of the head s origin, **budget for regular valve adjustments, oil changes, and cooling system checks** to prevent long-term issues.

**Final Verdict:** The R7A10 cylinder head is a **worthy investment** for Honda enthusiasts, but it demands **careful sourcing, installation, and maintenance** to justify its cost. For most users, a **balanced approach prioritizing quality over price will yield the best results.**

Details:

Original parts mean a perfect fit. Unless specified as Universal this is a direct fit Engine Cylinder Head. All parts are covered by warranty. This part fits vehicles made in the following years 201 8,2020.

Parts go back into cars rather than landfill. Every part is cleaned, tested and inspected by experts.

part #: 100035r7a10 price

• $315.00

specifications cylinderheapar:

• for makes: Honda
• for years: 2018
• mpn: 100035r7a10
• manufacturer warranty: 90 Day
• genuine oem: Yes
• seller notes: 1.5l Came Off Good Engine Had A Broken Block
• interchange item code: 306
• color: Orange
• reference oe/oem: 100035r7a10, 100035r7a12, 121005r1000, 141105r1j00, 141205r1j00
• compatibility: Fit 18-20
• type: Engine Cylinder Head

returns cylinderheapar:

• paid by: Buyer
• policy: Returns Accepted
• time: 60 Days

offer cylinderheapar:

• sold: 0
• options: Ship-to-home
• availability: In Stock
• started: April 29, 2026
• quantity: 1

general cylinderheapar:

• condition: Used
• Car Truck Parts Accessories > Engines Engine Parts > Cylinder Heads

shipping cylinderheapar:

• cost: $0.00
• transit: 3-9 Days
• service: Standard
• class: Standard
• type: Fixed

payments cylinderheapar:

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

seller cylinderheapar:

• # reviews: 0
• city: Kingsville, Missouri
• rating: 0.0%

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