396021FA GM Block Passenger 455 Olds Cutlass

Review GM Olds Block 72-76 Date 4.120 Bore 442 Passenger Bare for OLDS CUTLASS 455

Introducing the GM 396021FA Olds 455 block, specifically designed for Oldsmobile Cutlass models from the years 1972 to 1976. This is a bare block, meaning it does not include any additional components like cylinder heads, crankshaft, or pistons.

The 455 cubic inch V8 engine block is a powerful foundation for any performance build. It is made from high-strength iron for durability and features a four-bolt main bearing design for improved power delivery and reduced engine vibrations. The block also includes deep-skirt construction, which helps to reduce weight and increase rigidity, contributing to better engine response and overall performance.

The bore size of this block is 4.120 inches, making it a popular choice for those seeking increased displacement and power. The block is designed to accept a 442 Cutlass cylinder head, which is known for its excellent power potential.

This block is in good used condition with minimal machining required. However, it is essential to note that some minor repairs or machine work may be necessary to ensure proper fitment and optimal performance. These tasks may include resurfacing the block deck and cylinder bores, checking and repairing the crankshaft journal surfaces, and checking the block for any cracks or leaks.

In summary, the GM 396021FA Olds 455 block is an excellent foundation for any Oldsmobile Cutlass performance build. Its high-strength iron construction, four-bolt main bearing design, and deep-skirt construction make it a durable and powerful base for increased displacement and performance. While some minor repairs or machine work may be necessary, this block offers a solid starting point for those seeking to build a high-performance Oldsmobile Cutlass engine.

Buying a GM 396021FA Olds 455 Block for a 1972-76 Cutlass: Pros, Cons, and Conclusion

The GM 396021FA Olds 455 block is a popular choice for muscle car enthusiasts looking to rebuild their 1972-76 Oldsmobile Cutlass 442. This article presents the pros and cons of purchasing this engine block to help you make an informed decision.

1. Power: The 455 cubic inch V8 engine was a high-performance powerhouse in its day. Installing this block in your Cutlass 442 will significantly increase horsepower and torque.

2. Availability: The GM 396021FA Olds 455 block is widely available from various engine suppliers and wrecking yards.

3. Affordability: Compared to newer, aftermarket engine blocks, the 455 block is relatively affordable, making it a cost-effective option for muscle car enthusiasts.

4. Compatibility: This engine block is specifically designed for the 1972-76 Oldsmobile Cutlass 442, ensuring a perfect fit and proper function.

5. Parts Availability: A vast array of aftermarket parts is available for this engine block, making it easier to customize and maintain.

1. Age: The GM 396021FA Olds 455 block is a used engine component. It may have hidden damage or wear that could impact its performance and longevity.

2. Emissions: These older engines do not meet modern emissions standards. Installing this engine block in your Cutlass 442 may require additional modifications to pass emissions inspections.

3. Fuel Efficiency: The 455 cubic inch V8 engine is known for its lackluster fuel efficiency. Installing this engine block may result in increased fuel consumption.

4. Maintenance: Older engine blocks require more frequent maintenance and upkeep compared to modern engines.

5. Compatibility with Modern Technology: This engine block may not be compatible with modern features like electronic fuel injection or engine management systems.

The GM 396021FA Olds 455 block offers significant power gains and a perfect fit for 1972-76 Oldsmobile Cutlass 442 owners. However, it comes with the drawbacks of age, emissions concerns, and increased maintenance requirements. Ultimately, the decision to purchase this engine block depends on your personal priorities, budget, and willingness to invest time and resources into maintaining and customizing your muscle car.

If you're looking for a powerful, affordable engine upgrade for your 1972-76 Oldsmobile Cutlass 442, the GM 396021FA Olds 455 block is an excellent choice. However, ensure that you source the engine block from a reputable supplier, consider the potential costs and challenges associated with maintaining an older engine, and be prepared to make adjustments to meet modern emissions standards.

Details:

4.120 bore, cleaned nagged. Cutlass, 442, passenger. Gm 396021FA Olds 455, bare block, 1972-76 339 date, 2 bolt mains. Nice condition, guaranteed.

specifications engineblocksam:

• for models: 455, Cutlass
• for makes: Olds
• brand: Gm
• mpn: 396021fa
• type: Engine Block
• material: Cast Iron
• country/region of manufacture: America
• vintage part: Yes
• performance part: No

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• item condition:
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