31181235 DART Iron Block M2 Chevy

Review DART Little Iron Small Block Chevy Blocks for CHEVY M2

The Dart 31181235 M2 Iron Block Chevy engine block is a high-performance aftermarket replacement block designed for small-block Chevrolet applications. This cast iron block is engineered to provide superior strength and durability, making it an ideal choice for racers, hot rodders, and high-performance enthusiasts.

The M2 block features a raised deck design, which provides increased compression height and improved ring sealing. It also includes a 4-bolt main bearing configuration that enhances the block's rigidity and eliminates the need for a main cap gasket. The M2 block is also designed to accept aftermarket high-performance main caps for even greater strength and durability.

The block's cylinder bores are precision-machined to ensure a perfect fit for aftermarket pistons, and the block's deck surface is flat and smooth to allow for easy head gasket installation. The block also includes a factory-installed freeze plug kit, which simplifies the installation process.

Additionally, the M2 block includes a number of other performance-enhancing features, such as a deep-sump oil pan baffling system that helps maintain oil pressure during high-speed cornering, and a scaled deck surface that allows for easier engine assembly and disassembly.

The Dart 31181235 M2 Iron Block Chevy engine block is designed to work with popular aftermarket heads and intake manifolds, and it is backed by a limited warranty for added peace of mind. Overall, this block is a high-quality, reliable, and powerful option for anyone looking to build a high-performance small-block Chevrolet engine.

Buying a Dart 31181235 M2 Iron Block Chevy engine block can be a good investment for those looking for a high-performance aftermarket block for their Chevrolet engine. Here are some pros and cons to consider before making a purchase:

1. High-performance design: The Dart M2 Iron Block is specifically designed for high-performance applications, making it an excellent choice for racing or high-horsepower builds.

2. Durability: The iron block material is known for its strength and durability, making it an ideal choice for high-stress applications.

3. Bolt-in design: The Dart M2 Iron Block is a direct replacement for the OEM Chevy engine block, making installation straightforward and relatively easy.

4. Wide compatibility: This engine block is compatible with a wide range of Chevrolet engines, including small-block and big-block designs, making it a versatile option.

1. Cost: The Dart M2 Iron Block is more expensive than the OEM engine block, which may be a deterrent for some buyers.

2. Weight: The iron block material is heavier than aluminum, which can add weight to the engine and impact performance in some applications.

3. Heat dissipation: The iron block may not dissipate heat as efficiently as an aluminum block, which can be a concern for high-performance applications where effective cooling is crucial.

The Dart 31181235 M2 Iron Block Chevy engine block is an excellent choice for those looking for a high-performance aftermarket block for their Chevrolet engine. Its durability, strength, and compatibility make it a versatile option, but its cost, weight, and potential heat dissipation concerns may be drawbacks for some buyers. Ultimately, the decision to purchase this engine block depends on the specific requirements of your project and your budget.

If you are building a high-performance engine or racing application and are looking for a strong and durable engine block, the Dart M2 Iron Block is a great option to consider. However, if weight and cost are significant concerns or if effective cooling is a priority, you may want to explore other engine block materials or options.

Details:

Items must be new, unused, not installed, in the original packaging and able to resold. Condition: new. Provisions for wet or dry sump oiling systems. Great for power adders and maximum effort engines.

A competition oiling system ensures adequate lubrication to the main bearings at high rpm. The Dart little M2 is designed from the ground up as a true racing engine block which can be used with standard off shelf small components. Little M2 iron small block Chevy blocks true race block which will work with most standard components. The little M2 is cast from premium high strength iron and beefed up in all the critical areas.

Manufacturer: Dart. Mpn: 31181235.

specifications engineblocksam:

• for models: M2
• for makes: Chevy
• brand: Dart
• mpn: 31181235
• part type: Block
• upc: 807051045215

offer engineblocksam:

• started: april 18, 2025
• sold #: 21
• availability: in stock
• options: ship-to-home
• quantity: 1

payments engineblocksam:

• wallet: google-pay
• other
• credit card: visa

returns engineblocksam:

• policy: returns accepted
• time: 30 days
• paid by: seller

shipping engineblocksam:

• class: expedited
• type: fixed
• service: expedited
• transit: 4-10 days

seller engineblocksam:

• rating: 98.4%
• city: grant, michigan
• # reviews: 156017

general engineblocksam:

• category: Auto Parts > Car Truck Accessories > Engines > Blocks