1257-0249 Crankshaft Crank Shaft Standard

( Brand: General Motors ), ( Manufacturer Part Number: 1257-0249 ), ( Part Type: Crankshaft Crank Shaft Motor )

Review GENERAL MOTORS Crankshaft Crank Shaft Standard fits CORVETTE LS2 2005

General Motors 1257-0249 05 Corvette LS2 Crankshaft - Standard Replacement

The General Motors 1257-0249 05 Corvette LS2 Crankshaft is a crucial component in the high-performance engine of your classic American sports car. This crankshaft, manufactured to the exacting standards of General Motors, is designed to deliver both power and reliability, ensuring your Corvette continues to roar with its iconic V8 sound.

The LS2 Crankshaft is a forged steel component, which offers superior strength and durability compared to cast crankshafts. It features a polished finish, enhancing both the visual appeal and the performance of the engine. The crankshaft's dimensions and balancing are precision-engineered to minimize vibrations and ensure smooth operation, even under heavy load conditions.

The crankshaft's journal surfaces are machined to exact specifications, ensuring perfect fit with the connecting rods and pistons. The crankshaft also includes a timing gear, which meshes with the camshaft to control the engine's combustion cycle. This timing gear is designed for quiet operation and long-lasting performance.

The General Motors 1257-0249 05 Corvette LS2 Crankshaft is a direct replacement for the original equipment crankshaft and is designed to fit seamlessly into your Corvette engine. It comes with a comprehensive warranty, giving you peace of mind and assurance of the product's quality.

In conclusion, the General Motors 1257-0249 05 Corvette LS2 Crankshaft is not just a replacement part; it's a critical performance upgrade for your Corvette. By installing this crankshaft, you're ensuring your Corvette's engine continues to deliver the power, performance, and reliability that has made this iconic sports car a favorite among enthusiasts worldwide.

Analysis of General 1257-0249 05 Corvette LS2 Crankshaft

1. High Quality: This crankshaft is designed for high-performance applications, ensuring durability and reliability.

2. Fitment: It is specifically designed to fit the 2005 Corvette LS2 engine, minimizing installation issues.

3. OEM Part: As an Original Equipment Manufacturer (OEM) part, it is built to the same standards as the crankshaft originally installed in the vehicle.

4. Potential Power Gain: The LS2 engine is known for its power, and a new crankshaft could potentially help unlock more horsepower and torque.

1. Cost: Compared to aftermarket alternatives, OEM parts like this crankshaft can be more expensive.

2. Limited Performance Upgrades: While this crankshaft is designed for high performance, it may not offer the same level of customization as aftermarket options.

3. Availability: OEM parts may not be as readily available as aftermarket alternatives, possibly leading to longer wait times for replacement or upgrade.

The General 1257-0249 05 Corvette LS2 Crankshaft is a high-quality, reliable choice for those seeking a replacement or upgrade for their Corvette. Its OEM pedigree ensures a perfect fit, and its durability is a testament to its build quality. However, its cost and limited performance upgrade potential are factors to consider.

If you prioritize reliability, ease of installation, and the peace of mind that comes with an OEM part, this crankshaft is a strong choice. However, if you're looking for more customization options or cost savings, you may want to explore aftermarket alternatives. Ultimately, the decision should be based on your specific needs, budget, and performance goals.

Details:

All dimensions are measured on the outside of box and rounded up. This is an LS2 crankshaft which gun drilled. UPS offers the best cost and accurate time effective shipping service. You are buying on a used crankshaft removed from various 05 Corvette model's equipped with an LS2 engine.

There is no software that can figure correctly. Calculating Shipping: The total shipping charge is based on package weight, and box dimensions. So, it all has to be done manually. And it has been polished and checked coated with Cosmogony.

No software knows the size of boxes available or how an item needs to be packaged safely. Here are some examples. Originally fits the following. And then hand off to a local shipping service for final delivery.

The rod main journals are standard. 06-07 Corvette used a 58X rector. This uses a 24X rector and was used on 05 Corvette 05, 06 GTO LS2. Certain items are not able to be combined due their size or ability ship safely together.

Anything you ship by any shipping method is figured the greater of actual or dimensional weight.

part #: 12570249 price

• $350.00

specifications cranshafengin:

• for models: Ls2, Corvette
• for years: 2005
• brand: General Motors
• mpn: 1257-0249
• part type: Crankshaft Crank Shaft Motor

seller cranshafengin:

• city: Heflin, Alabama
• # reviews: 26354
• rating: 99.8%

returns cranshafengin:

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

offer cranshafengin:

• options: Ship-to-home
• quantity: 1
• availability: In Stock
• sold: 0
• started: November 23, 2025

general cranshafengin:

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

shipping cranshafengin:

• transit: 3-8 Days
• carrier: UPS
• class: Standard
• type: Calculated
• service: UPS Ground
• cost: $140.38

payments cranshafengin:

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

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