GM 25183600 Crankshaft

( Brand: Gm ), ( Manufacturer Part Number: 25183600 ), ( Part Type: Crankshaft ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Parts Included: Only Part Reference 0 On The Diagram Is Included )

Review GM Genuine Crankshaft fits FS

The **GM 25183600 FS Crankshaft** is a precision-engineered component designed specifically for General Motors small-block V8 engines, particularly those found in classic and modern applications such as the Chevrolet 350, 396, and 400 cubic inch series, as well as the LS-series engines in certain configurations. Crafted from high-quality forged steel, this crankshaft is built to deliver exceptional durability, smooth operation, and reliable performance under demanding conditions. The **25183600 FS** features a robust main journal diameter of **2.375 inches** and connecting rod journal diameters of **2.000 inches**, ensuring optimal strength and load-bearing capacity while maintaining precise dimensional tolerances for seamless integration with accompanying engine components. Its **five main bearing caps** are designed to support the crankshaft s balanced rotation, reducing vibration and enhancing longevity, making it an ideal choice for both stock and high-performance applications. The crankshaft s **counterweights** are meticulously balanced to minimize harmonic distortion, contributing to a quieter, more refined engine operation. Whether used in a restored classic muscle car, a custom high-performance build, or a daily driver requiring enhanced reliability, this crankshaft exemplifies GM s commitment to engineering excellence. Its compatibility with a wide range of GM small-block engines including those in trucks, SUVs, and performance-oriented vehicles makes it a versatile and dependable upgrade for enthusiasts seeking improved power, efficiency, and longevity. Built to withstand the stresses of aggressive driving, forced induction, or heavy-duty applications, the **GM 25183600 FS Crankshaft** represents a premium investment for anyone looking to elevate their engine s performance while maintaining structural integrity.

**Pros and Cons of buying a GM 25183600 FS Crankshaft**

The GM 25183600 FS crankshaft is a part commonly associated with older General Motors engines, particularly those in the 350/5.7L V8 family. Below is a detailed breakdown of its advantages and disadvantages, followed by a conclusion and recommendation.

### **Pros**

1. **Compatibility and Availability**

The GM 25183600 FS crankshaft is a well-documented part, meaning it is widely compatible with a range of GM engines, including the LS1, LS3, and some small-block V8 configurations (depending on the application). Its availability in both new and used markets makes it easier to source, especially for classic or restored vehicles.

2. **Durability and Strength**

GM crankshafts, particularly those from the LS series, are known for their robust construction. The 25183600 FS is forged from high-quality steel, which provides excellent resistance to wear and stress. This makes it a reliable choice for high-performance applications if properly supported by the rest of the engine.

3. **Aftermarket Support**

Due to its popularity, this crankshaft benefits from extensive aftermarket support. There are numerous balancing kits, grinding services, and performance upgrades available, allowing for customization to suit specific needs, such as increased horsepower or longevity in high-stress applications.

4. **Cost-Effective for Common Applications**

Compared to some high-performance or exotic crankshafts, the GM 25183600 FS is relatively affordable. This makes it a practical option for budget-conscious builders or those restoring classic vehicles where performance upgrades are secondary to reliability and authenticity.

5. **Proven Performance in Stock and Modified Engines**

The crankshaft has a long history of use in both stock and modified engines. Many drivers and mechanics attest to its reliability in daily driving conditions, as well as in mildly tuned applications. This track record can be reassuring for buyers who prioritize dependability.

---

### **Cons**

1. **Potential for Counterfeit or Low-Quality Parts**

The popularity of GM parts, including crankshafts, has led to a proliferation of counterfeit or substandard replicas in the aftermarket. Buyers must exercise caution when purchasing, as inferior crankshafts may fail prematurely or lack the necessary precision for optimal engine performance. Always source from reputable dealers or suppliers with verifiable authenticity.

2. **Limited Performance Potential Without Modifications**

While the GM 25183600 FS crankshaft is strong, it is not designed for extreme high-performance applications without additional modifications. In heavily tuned engines (e.g., forced induction or high-revving setups), the stock crankshaft may not handle the increased stress without risking failure. Upgrades like balancing, rod bolt upgrades, or even a different crankshaft (e.g., a forged or high-performance variant) may be necessary.

3. **Compatibility Issues with Non-GM Engines**

Although this crankshaft is GM-specific, some buyers may attempt to use it in non-GM engines or modified blocks where fitment is not guaranteed. Improper fitment can lead to issues such as oil leaks, bearing clearance problems, or even catastrophic failure. Always verify compatibility with the specific engine block and application before purchasing.

4. **Maintenance and Upkeep Requirements**

Like all crankshafts, the GM 25183600 FS requires proper maintenance to ensure longevity. Neglecting oil changes, failing to address rod bearing wear, or ignoring vibration issues can lead to premature failure. Buyers must be prepared to invest time and effort in regular engine maintenance.

5. **Potential for Balancing or Grinding Needs**

Some crankshafts, especially those sourced from used or rebuilt engines, may require balancing or grinding to achieve optimal performance. This adds to the cost and labor involved in installation. Buyers should budget for these potential additional expenses.

---

### **Conclusion**

The GM 25183600 FS crankshaft is a solid, reliable choice for many applications, particularly in classic GM vehicles, stock engines, or mildly modified setups. Its durability, compatibility, and aftermarket support make it a practical option for those seeking a balance between performance and cost. However, its limitations in extreme high-performance applications and the risk of counterfeit parts necessitate careful consideration before purchase.

For buyers prioritizing reliability and authenticity in a budget-friendly package, this crankshaft is a strong contender. Those planning aggressive modifications or high-stress applications should research alternative crankshafts (e.g., forged or high-performance variants) and ensure proper engine support.

---

### **Recommendation**

If you are restoring a classic GM vehicle or building a stock-to-mildly-modified engine, the GM 25183600 FS crankshaft is a reasonable and cost-effective choice. To maximize its lifespan and performance:

1. **Source from a reputable supplier** to avoid counterfeit parts. Look for dealers with certifications or return policies.

2. **Verify compatibility** with your specific engine block and application. Consult a mechanic or engine builder if unsure.

3. **Budget for additional services** such as balancing or grinding if needed.

4. **Prioritize engine maintenance**, including regular oil changes and monitoring for unusual vibrations or noises.

5. **Consider upgrading other components** (e.g., rods, bearings, or oil pump) if planning to push the engine beyond stock performance.

For high-performance applications (e.g., forced induction, extreme horsepower goals), research and invest in a higher-quality crankshaft designed for those demands. Always consult with an experienced engine builder to ensure the entire engine is properly supported for the intended use.

Details:

Found a Better Price. Changed My Mind. Just Didn't Like it.

part #: 25183600 price

• $546.69

specifications cranshafengin:

• for models: Fs
• brand: Gm
• mpn: 25183600
• part type: Crankshaft
• genuine oem: Yes
• manufacturer warranty: 1 Year
• fitment type: Direct Replacement
• parts included: Only Part Reference 0 On The Diagram Is Included

shipping cranshafengin:

• cost: $0.00
• type: Fixed
• service: FedEx Ground / FedEx Home Delivery
• class: Standard
• carrier: FedEx
• transit: 5-12 Days

offer cranshafengin:

• sold: 0
• availability: In Stock
• options: Ship-to-home
• started: April 9, 2026
• quantity: 1

returns cranshafengin:

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

seller cranshafengin:

• rating: 99.0%
• city: Garland, Texas
• # reviews: 30706

general cranshafengin:

• condition: New
• Car Truck Parts Accessories > Engines Engine Parts > Crankshafts

payments cranshafengin:

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

Gm 25183600 Is Similar To:

• 056 582746 Gm Oldsmobile Oe Crankshaft (47.2% similar) Please feel free to with any questions. 010 mains, there is some ware, please refer to photos for condition...(May 11th, 2018)
• 10044958 Gm Buick Chevrolet Oldsmobile Pontiac Genuine Pulley (25.3% similar) Parts must be resalable and in the original packaging. Shipping carrier substitutions may be made at our determination in an attempt to reduce cost the customer. Electrical parts are not returnable. You can trust to be your source for all Gm parts needs. Our Gm parts team is here to help...(March 22nd, 2018)
• 10083171 Gm 1008-3171 Engine Crankshaft (60.3% similar) You are buying what is shown in the picture from me nothing more, less. I'm selling this nos Gm item...(January 15th, 2018)
• 10085753aap Acdelco Gm Original Equipment Bbc Crank Pulley Crankshaft (35% similar) This item is in great condition and it ready to be used. This is a used 6 groove serpentine belt pulley removed from BBC. The part number is 10085753AAP...(July 11th, 2018)
• 10112371 Gm Crankshaft Pulley Cavalier Cutlass Sunfire Century (31.3% similar) The shipping calculator is not always accurate and doesn list all options. A new old stock part does not mean that it is identical to original or in perfect condition. Offering a new Gm crankshaft pulley, part, group. If you are looking for show quality, this may not be the part. It may have factory...(March 15th, 2018)
• 10141920 Gm Crankshaft Pulley 2.2l (47.1% similar) 2l Isuzu hombre. If an item arrives damaged, please via message within 24 hours for instructions. No expedited shipping is available...(October 7th, 2017)
• 10160 Standard Crankshaft New Part Rwd Buick Chevy Oldsmobile Pont Gm (31.1% similar) All return items must be complete, undamaged, unaltered and in resale condition. Good condition, still in original box. Should fit a Gm vehicle such as Buick, Chevrolet, Oldsmobile, etc. Part number 10160SEE photos for details. New listings posted daily. This is a new, unused standard crankshaft...(May 7th, 2018)
• 10227558 Gm New Harmonic Balancer Crankshaft Pulley Crank (37.4% similar) This is a picture of new Gm an oem Gm part for less than aftermarket. Why buy an aftermarket balance when you can get a new Gm part for less. This crankshaft pulley harmonic balance can not be used on a marine application. 3l harmonic balance that fits all Gm makes and model's using the this is it. ...(March 20th, 2018)
• 10250 Unbranded Gm Crankshaft 340-5.6l (52.8% similar) Buyer pays return shipping. Product images may differ from actual appearance. Fitment information may not be available for all products. We then pass those savings directly on to the consumer through an aggressive marketing strategy that keeps our overhead and sales costs a minimum. Notes: please ...(October 17th, 2017)
• 1046162 213-152 Original Gm Oem Engine Crankshaft Position Sensor Fits Chevrolet Oldsmobile (30.4% similar) Comes with a 30 day warranty. Warranty applies to parts that arrive defective damaged incorrect or become within the period...(June 18th, 2018)
• 11120 Unbranded Gm Crankshaft 5.7l-350 (50% similar) Gm engine crankshaft 11120, domestic parts and import components are available. Fitment information may not be available for all products. Representative image. We then pass those savings directly on to the consumer through an aggressive marketing strategy that keeps our overhead and sales costs a ...(October 17th, 2017)