fits make: Chevy.



| Brand | DART |
|---|---|
| Manufacturer Part Number | 31223344 |
| Type | ENGINE BLOCK BARE |
| Material | MATERIAL |
| Notes | BBC IR/BLK SPORTS 9.800-4.250 NO KIT |
| UPC | 807051045901 |
The Dart Big Iron Block Chevy Engine Block (Part Number: 31223344) is a high-performance aftermarket engine block designed for automotive enthusiasts seeking enhanced power and durability in their Chevy engine builds. This block is engineered specifically for big block Chevy V8 engines with a displacement ranging from 350 to 427 cubic inches. It's suitable for various applications, including street performance, drag racing, road racing, and off-road use.
Manufactured using premium cast iron material, this engine block delivers unmatched strength and rigidity. The block's max bore size is 4.060 inches, with deck height set at 9.240 inches. The six-bolt main caps can withstand high compression ratios and increased horsepower, while the large 4-bolt main cap dowel pins offer excellent torque capacity.
The Dart Big Iron Block is designed with a thicker main web and increased material in critical areas such as the flycut area, water pump boss, and oil pan rails to improve ring land strength and handle more horsepower. In addition, the block features press-in sleeves from 3.480 to 4.060 inches, ensuring easy bore match-up with most aftermarket cylinder heads. Moreover, the block's main webs are designed to match the distance between the crank centerline and freeze plug centres.
This engine block comes factory aligned bore and decked for maximum machining accuracy, saving the builder hours of engine prep time.It is designed to meet SFI specifications, ensuring safety and reliability during competition use.
The Dart Big Iron Block Chevy Engine Block (31223344) is a perfect choice for those who demand next-level power and durability in their big block Chevy engines. With its high-quality cast iron construction and performance-enhancing features, it's the go-to solution for automotive enthusiasts and professional builders committed to optimal engine performance.
The Dart Big MBlock Chevy engine blocks are aftermarket casting engine blocks designed for Building high-performance, custom, and race engine applications. Here are some key pros and cons of buying a Dart Big MBlock Chevy engine block.
II. Pros1. Customizability: The Dart Big MBlock Chevy engine block offers several benefits for customization. This includes various deck heights and bore sizes, allowing builders to tailor the block according to their specific engine building goals.
2. High-Quality Materials: Dart uses premium materials to create its engine blocks. The Big MBlock Chevy blocks are made from cast iron, ensuring robustness and durability.
3. Enhanced Cooling: These blocks are designed with an improved cooling system. The large water jackets and crossflow design offer better heat dissipation compared to stock factory blocks.
4. Better Oiling: Dart Big MBlock Chevy engine blocks come with an improved oiling system, ensuring proper lubrication for high-performance applications.
III. Cons1. Higher Cost: Compared to factory-issued engine blocks, the Dart Big MBlock Chevy engine blocks are significantly more expensive. Customization and the use of high-quality materials contribute to the higher cost.
2. Complex Installerpace: Installing a Dart Big MBlock Chevy engine block can be a more complex process than installing a standard factory block. This might require additional resources, time, and expertise.
3. Weight: The Dart Big MBlock Chevy engine blocks are heavier than typical factory engine blocks due to their larger size and material. This added weight may increase engine installation costs and could potentially impact vehicle performance.
4. Tight Clearance: Because of the block's additional features and customization options, there may be tighter clearance requirements for other components such as head gaskets, clutch covers, or other ancillary components.
IV. ConclusionIn summary, the Dart Big MBlock Chevy engine blocks offer several advantages, such as customizability, superior cooling, and improved oiling. However, these benefits come at a cost, including the higher price point, complex installation process, increased weight, and potential clearance issues. Ultimately, the decision to purchase a Dart Big MBlock Chevy engine block depends on the engine builder's specific requirements, budget, and experience level.
V. RecommendationIf you're building a high-performance engine or planning for a custom application, the Dart Big MBlock Chevy engine block could be the perfect choice. The benefits of customizability, enhanced cooling, and better oiling make this block a popular choice among serious engine builders. However, it's essential to carefully consider the cons, including the cost, installation complexities, and specific clearance requirements before making the investment.
For kits, photo might show entire kit and listing is only for one component. Note: photos do not always represent the actual product. Big m iron block Chevy blocks,:: Chevy big block; 4.250 inch bore; 9.800 deck height ; 2 piece rear main seal.
