1673729 CHRYSLER Block Std Hemi

Review CHRYSLER 392 Short Block Bore for HEMI STD 1957

Chrysler 1957 392 Hemi Block (1673729 for 1673755 STD)

The Chrysler 1957 392 Hemi Block (Part Number: 1673729, applicable for engines with Part Number: 1673755 STD) is a genuine Mopar restoration component, engineered to deliver authenticity and performance for your classic Chrysler Hemi engine. This is a critical engine component, designed to provide the foundation for the powerful and iconic 392 Hemi engine.

This Hemi block is meticulously cast from premium iron alloy, ensuring exceptional strength and durability. It features the original 392 Hemi's distinctive hemispherical combustion chamber design, which provides superior compression ratio and air swirl effect for optimal power output. This block is also equipped with a traditional four-bolt main bearing configuration, ensuring optimal engine balance and longevity.

The Chrysler 1957 392 Hemi Block (1673729) is designed to accommodate the original 392 Hemi's forged crankshaft, connecting rods, and pistons. It comes with factory-correct bore size, ensuring a perfect fit with the original or replacement cylinder liners. The block also features factory-correct deck surface, allowing for precise alignment of the engine's components and optimal sealing.

The Hemi block's surface finish is engineered to provide an excellent base for the engine's cylinder head gaskets and engine sealants. It comes with a smooth, clean finish, free from any machining marks or inconsistencies. This ensures a trouble-free installation process and a superior seal between the cylinder head and the block.

The Chrysler 1957 392 Hemi Block (1673729) is a critical component in any Hemi engine restoration project, delivering the authenticity and performance that true Mopar enthusiasts demand. This block is designed to meet or exceed OEM specifications, ensuring optimal engine performance and longevity. It is backed by Chrysler's reputation for quality and reliability, making it an essential investment for any serious Hemi engine enthusiast.

The Chrysler 1957 392 Hemi block (Model numbers 1673729 for the standard block and 1673755 for the high-performance version) is a coveted piece among classic car enthusiasts due to its powerful engine. Here are some pros and cons that can help you make an informed decision about purchasing this block.

1. Power: The 392 Hemi engine is renowned for its power and torque. This block is a sought-after component for those looking to build a high-performance classic car.

2. Collectibility: The 1957 Chrysler 300B, which used this engine, is a iconic and collectible classic car. Owning a genuine 392 Hemi block from one of these cars adds to its value.

3. Adaptability: This engine block can be used in various applications, not just for the 1957 Chrysler 300B. Enthusiasts can use it to build custom hot rods or restomods.

4. Availability: Compared to other rare and high-performance engine blocks, the 1957 Chrysler 392 Hemi block is relatively easier to find, making it a more accessible option for enthusiasts.

1. Cost: The price of a genuine 392 Hemi block can be quite high, especially if it is in excellent condition or has desirable features like the high-performance version.

2. Restoration: Reconditioning and restoring a 392 Hemi block to its original condition can be a complex and time-consuming process. It requires specialized knowledge and tools.

3. Compatibility: Some enthusiasts may face compatibility issues when using this block in modern vehicles or non-Chrysler applications.

4. Maintenance: The 392 Hemi engine is known for its complex design and high-maintenance requirements. Owners must be prepared for regular upkeep and repair costs.

The Chrysler 1957 392 Hemi block (1673729 and 1673755) is a valuable and powerful component for classic car enthusiasts, but it comes with its own set of challenges and costs. Prospective buyers must weigh the benefits of owning a genuine 392 Hemi block against the investment required for its acquisition, restoration, and maintenance.

1. Budget: Determine how much you are willing to spend on the block and any associated costs.

2. Experience: Assess your knowledge and resources to restore and maintain the block.

3. Goals: Identify your primary objectives for the project and whether the 392 Hemi block fits into those plans.

4. Alternatives: Explore other engine options that may better suit your needs or budget.

5. Sources: Look for reputable sellers and suppliers to ensure the authenticity and quality of the block.

Details:

I will strap and shrink wrap block to a pallet. Comes with pan that is dented in. I will not deliver to home addresses. This listing is for short block only.

Crankshaft rotates freely. The last pic is what the motor looked like prior to me tearing it down. Going to assume its Std, but I did not mic it. Crank appears to be Std/std.

I will also provide delivery to nearest shipping terminal. Std bore with a ridge and water pitting in #8. I pulled a rod and main cap bearings had no numbers.

specifications engineblocksam:

• for models: Std, Hemi
• for years: 1957
• brand: Chrysler
• mpn: 1673729
• type: Short Block
• material: Cast Iron
• vintage part: Yes

seller engineblocksam:

• city: las vegas, nevada
• rating: 100.0%
• # reviews: 507

general engineblocksam:

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

shipping engineblocksam:

• service: flat rate freight
• class: freight
• type: fixed

returns engineblocksam:

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

payments engineblocksam:

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

offer engineblocksam:

• sold #: 11
• options: ship-to-home
• price: $3500.00
• item condition: Used
• started: december 26, 2025
• in stock #: 1
• availability: in stock