1. Engine Crankshafts Products
  2. sku: 19406039526750723
  3. CADILLAC 1609142

CADILLAC 1609142 Crankshaft Standard Grind

fits model: 425, Eldorado, Deville. make: Cadillac. year: 1977–1979.

1609142 Cadillac 1977 1978 1979 425 Crankshaft - Standard Grind Eldorado Deville

( Manufacturer Part Number: 1609142 ), ( Part Type: Crankshaft ), ( Material: Cast Iron ), ( Vintage Part: Yes ), ( Performance Part: No )

Review CADILLAC Crankshaft Standard Grind fits ELDORADO DEVILLE 425 1977–1979

The **Cadillac 1609142 1977-1979 425 Standard Grind Crankshaft** is a meticulously crafted, high-performance component designed exclusively for the legendary **Eldorado and Seville** models from the late 1970s, as well as the **DeVille** series during the same era. Engineered to perfection, this crankshaft is a **standard grind** version of the iconic **425 cubic inch (7.0L) V8**, a powerplant renowned for its robust construction and smooth operation. Built from **forged 4340 alloy steel**, this crankshaft is heat-treated to achieve an optimal balance of strength and durability, ensuring it can withstand the demands of high-performance applications, whether in classic restorations, hot rods, or modern muscle car builds. The **1609142** designation confirms its compatibility with the **1977 through 1979 model years**, where the 425 V8 was a staple in Cadillac s lineup, delivering a blend of torque and refinement that defined an era. The **main journal and rod journal diameters** are precisely machined to factory specifications, ensuring proper fitment with the original engine block and supporting components, including the **750-series bearings** and **timing gear system**. This crankshaft features **five main bearings** (5-main), a design that enhances stability and reduces vibration, allowing for a smoother power delivery characteristic of Cadillac s signature V8s. Whether you're restoring a **1977 Eldorado Brougham** with its plush luxury and powerful V8, a **1978 Seville** with its sleek, aerodynamic styling, or a **1979 DeVille** with its bold, muscle-inspired performance, this crankshaft serves as the backbone of the engine, ensuring reliability and performance for decades to come. Built to exacting standards, it is an essential upgrade for enthusiasts seeking to revive or enhance the legendary power and prestige of Cadillac s 425 V8, making it a must-have for any serious collector or builder aiming for authenticity and performance.

### **Pros and Cons of Buying a 1977 1979 Cadillac 425 Crankshaft (Standard Grind) Eldorado/Seville with Eldorado Deville Engine**

#### **Pros**

1. **Classic Cadillac Prestige** These models represent the peak of American luxury in the late 1970s, with iconic styling, spacious interiors, and a commanding presence. The Eldorado and Seville were particularly well-regarded for their elegance and refinement.

2. **V8 Power (425 Crankshaft Engine)** The 425 cubic inch V8 (also known as the "Eldorado Deville" engine) was a robust powerplant for its time, producing around **200 220 horsepower** (depending on year and modifications). It was designed for smooth, torquey performance rather than raw speed, making it ideal for cruising and long-distance driving.

3. **Durability of the Base Engine** The 425 crankshaft was a well-built, heavy-duty engine when properly maintained. Many examples have lasted decades with basic upkeep, especially if the original transmission (automatic or manual) is in good condition.

4. **Availability of Parts** As classic Cadillacs, these cars have a strong aftermarket support system. Engines, transmissions, and body panels are relatively easy to find, though prices may vary depending on rarity.

5. **Potential for Restoration or Modification** Enthusiasts appreciate the opportunity to restore these cars to their former glory or modify them for better performance. Swapping in a more modern engine (like a LS or LT engine) is a common upgrade, though it requires significant work.

6. **Nostalgia and Collectibility** For those who appreciate the golden age of American luxury, these cars hold sentimental value. The Eldorado and Seville, in particular, are sought after by collectors, which can increase resale value over time.

7. **Spacious and Comfortable Interior** Cadillac s 1970s interiors were known for their plush seating, ample legroom, and high-quality materials (though some may require restoration). The Eldorado had a longer wheelbase than the Seville, offering even more space.

8. **Potential for Customization** The open architecture of these cars allows for extensive modifications, from engine swaps to interior restyling. Some owners enjoy transforming them into modern muscle cars or even hot rods.

---

#### **Cons**

1. **Poor Fuel Economy** The 425 V8 was not designed for efficiency. Expect **around 10 12 MPG in the city and 15 18 MPG on the highway**, making long-distance driving expensive. This was a major drawback in the 1970s and remains an issue today.

2. **Reliability Concerns Without Maintenance** Like many classic engines, the 425 crankshaft can develop issues if not properly maintained. Common problems include:

- **Rod bearing wear** (due to the engine s design and lack of modern lubrication standards).

- **Valvetrain issues** (worn lifters, valves, or pushrods).

- **Transmission failures** (especially in older automatic transmissions).

- **Electrical gremlins** (common in older Cadillacs, requiring careful restoration).

3. **High Maintenance Costs** Restoring or keeping these cars running well requires significant investment. Labor costs for classic cars are often higher than for modern vehicles, and parts (especially rare ones) can be expensive.

4. **Weight and Handling** Cadillacs of this era were heavy, with poor weight distribution, leading to sluggish handling and poor cornering. Modern suspension upgrades can help, but the car will never be nimble.

5. **Corrosion and Rust** Many 1970s Cadillacs suffer from rust, especially in the wheel wells, undercarriage, and frame. A thorough inspection is essential before purchase to avoid hidden repair costs.

6. **Limited Modern Comforts** Original models lack modern safety features (airbags, modern braking systems), advanced electronics, and fuel efficiency. Driving one today may feel outdated compared to contemporary vehicles.

7. **Insurance and Registration Costs** Classic car insurance can be expensive, especially for high-value models. Some states also charge higher registration fees for vintage vehicles.

8. **Market Saturation** While not as common as some other classics (e.g., Mustangs, Camaros), there are still many 1977 1979 Eldorados and Sevilles on the market. Finding a truly rare or well-preserved example can be competitive.

9. **Potential for Overrestoration** Some owners go overboard with modifications, losing the car s original character. Buyers should be cautious about purchasing a heavily altered example if they prefer authenticity.

10. **Driving Experience Limitations** The car s heavy weight, soft suspension, and outdated steering make it less enjoyable for spirited driving compared to modern or even earlier muscle cars.

---

### **Conclusion**

Buying a **1977 1979 Cadillac Eldorado/Seville with a 425 crankshaft engine** is a rewarding but challenging endeavor. These cars are **excellent for enthusiasts who appreciate classic luxury, nostalgia, and the potential for restoration or modification**. They offer **strong engines, timeless styling, and a sense of history**, but they come with **high maintenance costs, poor fuel economy, and reliability concerns** if not properly cared for.

If you are **willing to invest time and money into restoring or modifying the car**, it can become a **showpiece, a daily driver with character, or even a performance project** (with an engine swap). However, if you prioritize **modern convenience, fuel efficiency, or low maintenance**, this may not be the best choice.

---

### **Recommendation**

- **Buy if:**

- You have **mechanical experience** or access to a trusted mechanic.

- You are **passionate about classic Cadillacs** and willing to restore or modify the car.

- You plan to **drive it occasionally** (not as a daily) and enjoy the **vintage luxury experience**.

- You find a **well-documented example** with **clean title, no major rust, and a service history**.

- You are prepared for **high upfront costs** (engine, transmission, electrical, bodywork).

- **Avoid if:**

- You want a **modern, efficient, or low-maintenance vehicle**.

- You are **not willing to spend significant money** on repairs or restoration.

- You **don t enjoy working on cars** or lack access to proper mechanics.

- The car has **major rust, transmission issues, or electrical problems** without a clear repair plan.

#### **Best Approach:**

- **Inspect thoroughly** (or have a trusted mechanic do so) before purchasing.

- **Budget for a full restoration** if buying a project car.

- **Consider an engine swap** (e.g., LS V8) if you want better reliability and performance.

- **Join classic Cadillac forums** (e.g., Cadillac Eldorado Club, Seville Forum) for advice and part sourcing.

Ultimately, these cars are **best suited for dedicated enthusiasts** who can appreciate their history and are prepared for the challenges they present. If you love the idea of owning a piece of automotive luxury history and are willing to put in the work, a **1977 1979 Cadillac Eldorado/Seville with a 425 crankshaft engine** can be an incredibly satisfying project. If not, there are more practical alternatives available.

Details:

GM 1609142R crankshaft carefully removed from a 52,000 mile 1978 Eldorado. Carefully visually inspected and no grooves or any other problems were found. Shortly after removal from the original engine, it was hot tanked and cleaned, has been kept covered in oil since then, but sitting on a shelf for years probably should be polished before use.

specifications cranshafengin:

  • for models: 425, Eldorado, Deville
  • for makes: Cadillac
  • for years: 1977-1979
  • mpn: 1609142
  • part type: Crankshaft
  • material: Cast Iron
  • vintage part: Yes
  • performance part: No

payments cranshafengin:

  • credit card: Mastercard
  • wallet: Paypal
  • other

shipping cranshafengin:

  • type: Fixed
  • cost: $80.00
  • class: Economy
  • transit: 5-11 Days
  • service: Economy

offer cranshafengin:

  • availability: In Stock
  • sold: 0
  • options: Ship-to-home
  • quantity: 1
  • started: March 19, 2026

seller cranshafengin:

  • rating: 100.0%
  • # reviews: 2350
  • city: Saint Louis, Missouri

returns cranshafengin:

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

general cranshafengin:

  • condition: Used
  • Car Truck Parts Accessories > Engines Engine Parts > Crankshafts
for models: 425, eldorado, deville, for makes: cadillac, for years: 1977-1979, part type: crankshaft, vintage part: yes, performance part: no,
category: auto parts > car truck parts accessories > engines engine parts > crankshafts, material: cast iron, sku: 19406039526750723,
Cadillac 1609142 Is Similar To:

Copyright © cranshafengin.com