GM 19301151 Dohc Cylinder Head Driver Camshafts General 3.6L LY7

( Brand: Gm ), ( Manufacturer Part Number: 19301151 ), ( Type: Dohc ), ( Core Charge: No ), ( Manufacturer Warranty: 90 Day ), ( Oe/oem Part Number: 12603904, 12600041 ), ( Fitment Type: Direct Replacement ), ( Items Included: Seals, Springs, Valves ), ( Material: Aluminum )

Review GM General Motors Genuine 3.6l Ly7 Dohc Cylinder Head Assembly Driver Side Out Camshafts

The **19301151 GM 3.6L Ecotec LY7 DOHC Cylinder Head Driver Camshaft** is a precision-engineered component designed to deliver optimal performance and reliability within General Motors high-efficiency, direct-injection (DOHC) engine architecture. Part of the renowned **LY7** family, this camshaft is meticulously crafted for the **3.6-liter V6 Ecotec engine**, a powerplant renowned for its balance of power, fuel efficiency, and smooth operation across a range of applications, including performance-oriented vehicles like the **Chevrolet Camaro SS, Cadillac ATS-V, and Pontiac G8 Blackfire**. The driver-side camshaft features a **dual overhead camshaft (DOHC)** design, incorporating advanced valve actuation to enhance airflow, combustion efficiency, and overall engine responsiveness. Engineered with **high-strength materials and precision-ground lobes**, this camshaft ensures consistent valve timing, reducing friction and wear while maximizing horsepower and torque output. Its **hydrodynamic lifter system** provides smooth operation under high RPM conditions, making it ideal for both daily driving and spirited acceleration. Whether integrated into a stock or modified engine, this camshaft plays a critical role in maintaining the **LY7 s reputation for durability and performance**, offering a seamless fit for enthusiasts seeking to preserve or enhance the engine s inherent strengths. Built to meet GM s stringent quality standards, it is a key component for those looking to restore or upgrade their vehicle s drivetrain with confidence.

### **Pros and Cons of Buying GM 3.6L (LY7) DOHC Cylinder Heads with Driver Camshafts**

#### **Pros**

1. **Performance Potential** The LY7 engine is a high-performance variant of the GM 3.6L V6, featuring a dual overhead camshaft (DOHC) design, variable valve timing (VVT), and a high-lift camshaft profile. This setup allows for significant power gains when tuned, making it ideal for forced induction (turbo/supercharger) builds or high-revving applications.

2. **Aftermarket Support** The LY7 has a strong aftermarket presence, with readily available parts such as intake manifolds, exhaust manifolds, camshafts, and supporting components. Tuning solutions (ECU flashes, standalone controllers) are also widely available, making modifications more accessible.

3. **Stock Reliability (With Proper Maintenance)** When maintained correctly (regular oil changes, cooling system checks, and avoiding excessive boost), the LY7 can be a durable engine. The forged internals (pistons, crankshaft, connecting rods) help it handle higher stress levels compared to some other GM V6s.

4. **Compatibility with GM Platforms** The LY7 was used in vehicles like the **GM LS-based platforms (e.g., GTO, SS, Camaro SS, Corvette Z06)**, meaning parts and modifications are often shared with the LS engine ecosystem. This includes high-flow heads, intake manifolds, and supporting components.

5. **Potential for High Horsepower** With proper tuning and supporting mods (intake, exhaust, fueling upgrades), the LY7 can reliably produce **400 600 horsepower** with forced induction or **300 400 HP naturally aspirated**. Some builds have even exceeded 700 HP with aggressive tuning and supporting mods.

6. **Modularity** The LY7 shares many components with the **LS3 (6.2L V8)**, including the **LS3 cylinder heads** (with slight modifications), allowing for a mix-and-match approach if desired.

7. **Resale Value Potential** A well-maintained, high-performance LY7 build can retain value, especially if kept in a stock-like condition with performance upgrades.

---

#### **Cons**

1. **Complexity & Tuning Requirements** The LY7 s VVT system and high-lift cams require precise tuning to avoid issues like **valve float, excessive oil consumption, or camshaft wear**. Poor tuning can lead to **knocking, misfires, or catastrophic failure**.

2. **Oil Consumption Issues** The LY7 is notorious for **burning oil**, especially with high-mileage examples or aggressive camshafts. This can lead to **blue smoke, reduced compression, and long-term engine damage** if not addressed (e.g., with oil catch cans, upgraded valve seals, or piston rings).

3. **Cooling System Demands** The LY7 generates **high heat output**, particularly under forced induction. A **high-capacity cooling system (radiator, water pump, thermostat, hoses)** is often required to prevent overheating, especially in high-power builds.

- **Intake & Exhaust** (high-flow headers, downpipe, cat-back exhaust)

- **Fueling Upgrades** (fuel pump, injectors, fuel rail, fuel pressure regulator)

- **Supporting Components** (reinforced crankshaft pulley, upgraded oil pump, timing chain tensioner)

- **Tuning & ECU** (standalone controller, custom tune)

5. **Potential for Valvetrain Stress** The LY7 s **high-lift cams and aggressive valve profiles** can lead to **valvetrain wear** if not properly lubricated or if the engine is run without adequate oil pressure. Some builders report **valve spring failure or rocker arm issues** at high RPMs.

6. **Stock Reliability Concerns** Many LY7 engines suffer from **premature wear** if not properly maintained, particularly in **oil consumption, camshaft wear, and VVT actuator failure**. A used LY7 should be **thoroughly inspected** before purchase.

7. **Limited Naturally Aspirated Potential** While the LY7 can make **good power naturally aspirated (250 350 HP)**, it is **not as strong as some competitors** (e.g., Ford EcoBoost, Toyota 2GR-FKS) without forced induction. Its true strength lies in **turbo/supercharger builds**.

8. **Weight & Size** The LY7 is a **heavy V6 (400 lbs)**, which can limit acceleration in lighter vehicles. This is less of an issue in muscle cars or trucks but may be a drawback in sports cars or high-revving applications.

---

### **Conclusion & Recommendation**

#### **Who Should Buy an LY7 with Driver Cams?**

- **Forced Induction Builders** The LY7 is **one of the best GM V6s for turbo/supercharger builds**, capable of **400 700 HP** with the right mods.

- **High-Revving Enthusiasts** If you plan to **run high RPMs (7,000 )** and have a **strong supporting build**, the LY7 can be a great choice.

- **LS Engine Modifiers** Since it shares components with the **LS3**, you can **mix and match parts** for a unique build.

- **Muscle Car & Truck Owners** The LY7 s **torque and power potential** make it well-suited for **heavy-duty applications**.

#### **Who Should Avoid the LY7?**

- **Budget Builders** The **cost of mods, tuning, and maintenance** can be prohibitive for casual enthusiasts.

- **Naturally Aspirated Only** If you **don t want forced induction**, other V6s (e.g., Ford EcoBoost, Toyota 2GR) may be more reliable.

- **Those Who Dislike Complex Tuning** The LY7 **requires precise tuning** to avoid reliability issues.

- **People Who Neglect Maintenance** The LY7 **demands strict oil changes, cooling system checks, and valvetrain attention** to avoid failure.

#### **Final Recommendation**

If you are **serious about performance, have a budget for mods, and understand the tuning requirements**, the **GM 3.6L LY7 with driver cams is an excellent choice**, particularly for **turbo/supercharger builds**. However, if you are **not willing to invest in supporting components or tuning**, consider alternatives like the **LS3 V8, Ford EcoBoost, or Toyota 2GR-FKS**.

- **Buy used with caution** Inspect for **oil consumption, camshaft wear, and VVT issues**.

- **Plan for a full support build** **Intake, exhaust, fueling, cooling, and tuning** are mandatory.

- **Expect oil changes every 3,000 5,000 miles** The LY7 **burns oil**, so be prepared for frequent top-ups.

- **Consider a hybrid build** Mixing **LS3 heads, intake, and supporting components** can improve reliability.

For the right builder, the LY7 is a **powerful and rewarding project**, but it requires **dedication and investment** to avoid common pitfalls.

Details:

Cleaned surfaced valves lapped and checked.I have a few 100 ready to go checked.

part #: 19301151 prices

• $105.00-$199.95

specifications cylinderheapar:

• brand: Gm
• mpn: 19301151
• type: Dohc
• core charge: No
• manufacturer warranty: 90 Day
• oe/oem part number: 12603904, 12600041
• fitment type: Direct Replacement
• items included: Seals, Springs, Valves
• material: Aluminum

payments cylinderheapar:

• other
• credit card: Discover
• wallet: Paypal

returns cylinderheapar:

• policy: No Returns

offer cylinderheapar:

• availability: In Stock
• sold: 0
• started: February 21, 2026
• options: Ship-to-home
• quantity: 4

seller cylinderheapar:

• rating: 100.0%
• # reviews: 12
• city: Roseville, Michigan

general cylinderheapar:

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

shipping cylinderheapar:

• service: FedEx Ground Economy
• cost: $44.75
• carrier: FedEx
• type: Calculated
• class: Economy
• transit: 4-9 Days

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