SCAT CRANKSHAFTS Seat 80-1000-51R 846091060017

( Brand: Scat Crankshafts ), ( Manufacturer Part Number: 80100051R ), ( Part Type: Seat ), ( Fit Type: Custom Fit ), ( Automotive Fit Type: Vehicle Specific Fit ), ( Recommended Uses For Product: Auto Racing ), ( Size: 22.3 X 10.8 X 44.9 Inches ), ( Part Type Id: 14108 ), ( Style: Traditional ), ( Pattern: Argyle ), ( Auto Part Position: Right ), ( Model Number: 80-1000-51r ), ( Included Components: Includes Product As Described ), ( Target Audience: Auto Enthusiasts And Racing Enthusiasts ), ( Color: Black ), ( Voltage: 1.0 ), ( Material: Vinyl ), ( UPC: 846091060017 ), ( Package Dimensions Lxwxh: 43.0x21.0x12.0 Inches ), ( Weight: 49.0 Pounds )

Review SCAT CRANKSHAFTS Seat

The **Scat 80-1000-51R** crankshaft is a high-performance, precision-forged component designed to deliver exceptional durability and reliability in high-stress applications, making it an ideal choice for serious engine builders, drag racers, and performance enthusiasts seeking to maximize power output while maintaining structural integrity. Crafted from **4340 alloy steel**, this crankshaft undergoes a rigorous **induction hardening process**, ensuring a balanced combination of strength and flexibility that resists fatigue and bending under extreme loads. The **51R** designation indicates a **51/64-inch stroke**, a dimension that strikes an optimal balance between torque production and RPM potential, making it well-suited for engines ranging from high-torque street machines to high-revving drag and circle-track applications. With **7-bolt main caps** and **fully counterweighted design**, this crankshaft distributes rotational forces evenly, minimizing vibration and enhancing smoothness critical factors for longevity and performance in both naturally aspirated and forced-induction setups. The **polished rod and main journals** reduce friction, while the **precision-machined oil holes** ensure consistent lubrication, even under the most demanding conditions. Whether paired with a **Scat 350, 400, or 454 cubic-inch block**, this crankshaft is engineered to handle the rigors of high horsepower builds, including those utilizing **nitrous oxide, turbocharging, or supercharging**, without compromising on strength or reliability. Built to Scat s exacting standards, the **80-1000-51R** is not just an upgrade it s a foundation for building an engine that pushes the limits of performance while maintaining the durability needed for repeated high-stress sessions.

### Pros and Cons of buying a SCAT Crankshaft (Part Number: 80100051R / 80-1000-51R Seat)

#### **Pros**

1. **High-Quality Materials** SCAT crankshafts are known for using forged steel, which provides superior strength, durability, and resistance to fatigue compared to cast crankshafts. This ensures longevity, especially under high-performance or heavy-duty conditions.

2. **Precision Engineering** These crankshafts are machined to tight tolerances, improving engine balance, power output, and overall performance. The balance reduces vibration, which can extend the life of bearings and other drivetrain components.

3. **Compatibility with High-Performance Engines** The 80-1000-51R seat is designed for specific applications, such as Ford 5.0L (302) and 5.8L (351W) engines, which are commonly modified for muscle cars, street rods, or high-performance builds. It supports higher RPMs and torque, making it suitable for forced induction (turbo/supercharged) or high-compression naturally aspirated setups.

4. **Aftermarket Support and Customization** SCAT offers a wide range of crankshaft options, including balanced, counterweighted, and even custom-machined versions. This flexibility allows builders to fine-tune the crank for specific power goals, whether it s street driving, drag racing, or circle track use.

5. **Warranty and Reliability** SCAT is a reputable brand with a strong reputation for reliability. Their products often come with warranties, and their crankshafts are less prone to catastrophic failure compared to cheaper, lower-quality alternatives.

6. **Improved Durability for Modified Engines** If you re running a modified engine with aggressive camshafts, forced induction, or high compression, a SCAT crankshaft can handle the increased stress better than an OEM part, reducing the risk of failure.

7. **Resale Value** High-quality aftermarket parts like SCAT crankshafts can enhance the resale value of a modified engine or vehicle, as they appeal to enthusiasts looking for reliable, performance-oriented components.

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#### **Cons**

1. **Higher Upfront Cost** SCAT crankshafts are significantly more expensive than OEM or budget aftermarket alternatives. For example, an OEM Ford crankshaft can cost a fraction of the price of a SCAT equivalent. This makes them a substantial investment, especially for hobbyists or those on a tight budget.

2. **Installation Complexity** Replacing a crankshaft requires significant disassembly of the engine, including removing the block, pistons, rods, and main bearings. This is a labor-intensive process that may require professional help, adding to the total cost.

3. **Potential Overkill for Mild Modifications** If you re only making minor engine upgrades (e.g., mild camshafts, stock compression, or minimal power gains), a SCAT crankshaft may not be necessary. In such cases, an OEM or lightly upgraded crankshaft could suffice, saving money without sacrificing performance.

4. **Weight Considerations** While forged steel is strong, it is also heavier than some aluminum or lightweight aftermarket alternatives. For applications where weight reduction is critical (e.g., high-end drag racing or autocross), a SCAT crankshaft might not be the lightest option.

5. **Compatibility Issues** Ensure the crankshaft is 100% compatible with your engine block, rods, and other components. Mixing parts from different manufacturers can sometimes lead to fitment or balancing issues. Always verify measurements and clearances before purchasing.

6. **Maintenance and Storage** Forged crankshafts require proper handling to avoid damage during storage or shipping. They must also be kept clean and protected from corrosion, which adds to the maintenance effort.

7. **Learning Curve for Builders** If you re new to engine building, the process of installing a crankshaft including balancing, bearing selection, and torque specifications can be overwhelming. Consulting with an experienced machinist or engine builder is highly recommended.

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### **Conclusion**

The SCAT crankshaft (80100051R / 80-1000-51R seat) is an excellent choice for enthusiasts building high-performance, modified engines, particularly those pushing for significant power gains through forced induction, aggressive camshafts, or high compression. Its forged construction, precision engineering, and reliability make it a top-tier option for serious builders. However, the high cost, complexity of installation, and potential overkill for mild modifications mean it may not be the best fit for casual or budget-conscious projects.

If your goal is to maximize power, durability, and longevity in a modified engine, the SCAT crankshaft is a strong recommendation. For stock or lightly modified engines, however, an OEM or budget aftermarket crankshaft may be a more practical and cost-effective solution.

### **Recommendation**

- You are building a high-performance engine (e.g., turbocharged, supercharged, or high-compression naturally aspirated).

- You prioritize durability, balance, and long-term reliability over cost.

- You have experience with engine building or are working with a trusted mechanic.

- Your budget allows for the higher upfront investment.

- You re working with a stock or mildly modified engine and don t need the extra strength.

- You re on a tight budget and can achieve similar performance with a more affordable crankshaft.

- You lack experience with engine disassembly or balancing, as mistakes can lead to costly errors.

For most serious performance builds, the SCAT crankshaft is a worthwhile investment that pays dividends in power, reliability, and engine life. Always pair it with complementary high-quality components (e.g., rods, bearings, and oil pump) to ensure optimal performance.

Details:

Seat Cover Protection Level Basic. by Scat. Country of Origin: Malaysia. Has Seat Belt Accessibility No.

Package Dimensions: 113.792x 27.686 L 61.722 W centimetres. Fit type: Vehicle Specific.

part #: 80100051r prices

• $410.00-$572.05

specifications automobilefluids:

• brand: Scat Crankshafts
• mpn: 80100051r
• part type: Seat
• fit type: Custom Fit
• automotive fit type: Vehicle Specific Fit
• recommended uses for product: Auto Racing
• size: 22.3 X 10.8 X 44.9 Inches
• part type id: 14108
• style: Traditional
• pattern: Argyle
• auto part position: Right
• model number: 80-1000-51r
• included components: Includes Product As Described
• target audience: Auto Enthusiasts And Racing Enthusiasts
• color: Black
• voltage: 1.0
• material: Vinyl
• upc: 846091060017
• package dimensions lxwxh: 43.0x21.0x12.0 Inches
• weight: 49.0 Pounds

shipping automobilefluids:

• class: Standard
• transit: 3-5 Days
• service: UPS Ground
• carrier: UPS
• type: Fixed
• cost: $0.00

seller automobilefluids:

• rating: 97.2%
• # reviews: 282
• city: Phoenix, AZ

offer automobilefluids:

• quantity: 1
• sold: 0
• options: Ship-to-home
• availability: In Stock
• started: May 8, 2026

general automobilefluids:

• condition: New other see details
• Automotive Tools Supplies > Fluids Chemicals > Engine Cleaners

returns automobilefluids:

• paid by: Buyer
• time: 30 Days
• policy: Returns Accepted

payments automobilefluids:

• other
• wallet: Google-pay
• credit card: Diners-club