1. Engine Crankshafts Products
  2. sku: 18957221260217604
  3. SCAT 445410L

SCAT 445410L 099998484107 4.0 6.13

fits make: Chevy.

445410l Scat Chevy 454 4.0 Stroke 6.13

( Brand: Scat ), ( Manufacturer Part Number: 445410L ), ( UPC: 099998484107 )

Review SCAT Chevy 4.0 Stroke 6.13 fits 454

The **SCAT 445410L** is a high-performance, precision-engineered clutch assembly specifically designed for the legendary **Chevy 454 cubic-inch (7.0L) and 4.0L Turbo (6.13L) big-block engines**, making it an ideal choice for muscle cars, drag racing applications, and high-torque street machines. Built to withstand the brutal demands of aggressive driving, this clutch features a **high-capacity, multi-plate friction system** that delivers exceptional heat dissipation and consistent engagement, ensuring smooth yet robust power delivery even under extreme loads. The **steel-backed friction material** is engineered for durability, resisting wear and tear from high RPMs and heavy throttle inputs, while the **heavy-duty pressure plate** incorporates a **diaphrag spring design** for progressive engagement, reducing clutch slippage and preventing premature failure. This clutch is particularly well-suited for **high-torque applications**, such as those found in turbocharged or supercharged 4.0L engines, where sustained power delivery is critical for maintaining traction and performance. The **stamped steel throwout bearing** ensures smooth clutch operation, reducing wear on the transmission s internal components, while the **high-temperature-resistant gasket** maintains a secure seal under extreme heat, preventing oil leaks and ensuring long-term reliability. Whether installed in a **restomodded 454 big-block** or a **turbocharged 4.0L LS-based engine**, the SCAT 445410L provides the strength and precision needed to handle the most demanding driving scenarios, from drag strips to daily driving, without compromising on performance or longevity. Built to SCAT s exacting standards, this clutch is a trusted upgrade for enthusiasts seeking a balance of power, durability, and ease of installation.

### **Pros and Cons of Buying a 1978 1988 Chevy C/K 454 Big Block (SCAT 445410L, 4.0L, 6.13:1 Compression)**

#### **Pros**

1. **Exceptional Power Potential**

- The **454 cubic inch big block** (based on the 427/454 Chevy V8) is one of the most durable and tunable engines ever made. With proper maintenance, it can easily produce **500 700 horsepower** with relatively simple modifications (big cam, headers, fuel system upgrades).

- The **4.0L displacement** (with a 4.25" bore) is a sweet spot for longevity larger than the 396 but not as extreme as the 502/572 big blocks.

- **6.13:1 compression** is a good balance high enough for strong stock performance but not so high that it requires premium fuel or risks detonation without tuning.

2. **Proven Durability**

- These engines were built to last, especially in **trucks and heavy-duty applications**. Many original 454s have **200,000 miles** with basic maintenance.

- The **cast-iron block and heads** are robust, and with **proper oil changes, valve adjustments, and cooling system care**, they can outlast modern engines.

- **Aftermarket support is strong** parts like cranks, rods, pistons, and heads are widely available and affordable compared to modern high-performance engines.

3. **Great for Hauling & Towing**

- The **454 was a workhorse engine** in trucks, meaning it was built for **towing heavy loads and hauling trailers** without excessive stress.

- With **stock or mild modifications**, it can easily handle **10,000 lbs of towing** in a properly set-up truck.

- **Manual transmissions (4-speed, 5-speed, or Powerglide)** are durable and can be upgraded for better performance.

4. **Classic Chevy V8 Sound & Presence**

- The **deep, rumbling growl** of a big block Chevy is unmatched great for enthusiasts who love the **vintage muscle sound**.

- The **physical size and weight** of the engine give the truck a **heavy-duty, no-nonsense look**, which appeals to many buyers.

5. **Affordable to Own & Modify**

- **Parts are cheap** compared to modern engines. A **new set of valves, springs, and lifters** costs less than $200, while a **new set of pistons and rings** is under $1,000.

- **Fuel economy is not an issue** expect **8 12 MPG** in a truck, which is fine for most hauling/towing needs.

- **Rebuilds are cost-effective** a **full engine rebuild** (including new crank, rods, bearings, and heads) can be done for **$3,000 $5,000**, far less than rebuilding a modern turbocharged engine.

6. **Easy to Work On**

- **No complex electronics** unlike modern fuel-injected engines, a **carbureted or early fuel-injected 454** is **mechanical and easy to diagnose**.

- **Common problems (like oil leaks, rod knock, or head gasket issues) are well-documented**, making repairs straightforward.

- **No turbocharger or direct injection** means fewer failure points.

7. **Great for Drag Racing & Street Use**

- With **minimal modifications (headers, cam, fuel system)**, a 454 can **0-60 in under 6 seconds** and **quarter-mile times in the low 13s**.

- **Top fuel and nitrous kits** are widely available, allowing for **massive power gains** without extreme stress on the engine.

- **Stock or mildly modified**, it s **legal in most street-legal classes** (depending on local laws).

---

#### **Cons**

1. **Poor Fuel Economy**

- **Stock MPG is around 8 12** in a truck, which is **far worse than modern diesel or turbo engines**.

- Even with **tuning and fuel system upgrades**, you won t see **better than 15 18 MPG** unless heavily modified.

2. **High Maintenance Requirements**

- **Valvetrain adjustments** (lifters, valves, springs) are **critical** skipping them leads to **rod knock and catastrophic failure**.

- **Oil changes must be frequent** (every **3,000 5,000 miles**) to prevent **sludge buildup and wear**.

- **Cooling system failures** (water pump, thermostat, hoses) are common **must be monitored closely**.

- **Rod bearings and main bearings** wear out over time, requiring **regular inspection**.

3. **Potential for Major Issues**

- **Rod knock** (from worn bearings or lifters) is a **common failure mode** if ignored, it **destroys the engine**.

- **Head gasket failures** (especially in older engines) can cause **overheating, coolant loss, and catastrophic damage**.

- **Crankshaft and rod failures** can happen if the engine is **over-revved or neglected**.

- **Fuel system issues** (carburetor or early fuel injection) can be **fussy and require tuning**.

4. **Weight & Size**

- The **454 is heavy** ( 600 700 lbs), which **reduces payload capacity** in a truck.

- **Physical size** makes it **harder to fit in modern vehicles** (though it s fine in a C/K truck).

- **Transmission choices** are limited **4-speed manuals, 5-speeds, and Powerglides** are common, but **modern automatic transmissions** (like the 4L60 or 4L85) may not be compatible without a **transmission swap**.

5. **Emissions & Legal Restrictions**

- **Stock carbureted 454s may not pass modern emissions laws** in some states (though many have **exemptions for classic vehicles**).

- **Fuel-injected 454s (1980 1988)** are slightly cleaner but may still need **modifications to meet smog laws**.

- **Nitrous or high-performance mods** may **void insurance or require special permits**.

6. **Not Ideal for Daily Driving**

- **Rough idle, vibration, and noise** make it **uncomfortable for daily commuting**.

- **Throttle response is sluggish** compared to modern engines, especially in stop-and-go traffic.

- **Reliability drops off sharply** after **150,000 200,000 miles** unless **heavily maintained**.

7. **Parts Availability Can Be Hit-or-Miss**

- While **common parts are easy to find**, **rare or aftermarket components** (like **specific camshafts, headers, or fuel pumps**) may require **special ordering**.

- **OEM parts for older trucks (pre-1990s)** can be **expensive or discontinued**.

---

### **Conclusion & Recommendation**

#### **Who Should Buy a 454 Big Block Chevy?**

**You should consider this engine if:**

- You **love classic muscle cars, trucks, or drag racing** and want **raw, unfiltered power**.

- You **haul heavy loads or tow frequently** and need **proven durability**.

- You **enjoy working on engines** and don t mind **regular maintenance**.

- You **want a project that can be built into a high-performance machine** without breaking the bank.

- You **prefer a mechanical, no-frills engine** over modern fuel-injected or turbocharged setups.

**You should avoid this engine if:**

- You **need excellent fuel economy** (diesel or turbo engines are better).

- You **want a hassle-free, low-maintenance daily driver** (modern trucks or SUVs are better).

- You **can t commit to regular valvetrain adjustments, oil changes, and cooling system checks**.

- You **live in an area with strict emissions laws** and can t modify the engine properly.

- You **prefer modern convenience features** (start-stop, adaptive cruise, etc.).

#### **Final Recommendation**

A **1978 1988 Chevy C/K 454 (SCAT 445410L, 4.0L, 6.13:1)** is an **excellent choice** if you re looking for:

- **A powerful, durable, and affordable big block engine** for **towing, hauling, or racing**.

- **A project that can be built into a high-performance machine** with **relatively low cost**.

- **A classic V8 sound and presence** that modern engines can t match.

**However, it requires:**

- **Regular maintenance** (valvetrain, oil changes, cooling system).

- **Patience and mechanical skill** to keep it running smoothly.

- **Acceptance of lower

Details:

Scat 445410L CHEVY 454 4.0 STROKE 6.13, Standard Weight 4340 Steel Crankshaft Without Counterweights Chevy Big Block1-Piece Rear Main Seal4.000'' Stroke for use with 6.135'' Rod2.200 Rod Pin Diameter External Balance70 lbs. American Express.

part #: 445410l price

  • $1177.99

specifications cranshafengin:

  • for makes: Chevy
  • brand: Scat
  • mpn: 445410l
  • upc: 099998484107

offer cranshafengin:

  • options: Ship-to-home
  • started: February 21, 2026
  • availability: In Stock
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  • quantity: 10

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for makes: chevy,
category: auto parts > car truck parts accessories > engines engine parts > crankshafts, sku: 18957221260217604,
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  • New. Offer #1 priced at $1177.99 + $0.00 shipping estimate = $1177.99* total. Scat Standard Weight 4340 Steel Crankshaft Without Center Counterweights Chevy Big Block. Standard Weight 4340 Steel Crankshaft Without Center Counterweights, Chevy Big Block, 1-Piece Rear Main Seal, 4.000" Stroke for use with 6.135" Rod, 2.200" Rod Pin Diameter, External Balance, 70 lbs.FREE SHIPPING

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