1. Engine Crankshafts Products
  2. sku: 14418638818736611
  3. MANLEY 290940

MANLEY 290940 Block Rotating 383CI 4.040 3.75

fits make: Chevy.

290940 Manley Small Block Chevy Rotating Assembly 383ci 4.040 Bore .040 3.75

( Brand: Manley ), ( Manufacturer Part Number: 290940 ), ( Part Type: Block )

Review MANLEY Small Block Chevy Rotating Assembly 383ci 4.040 Bore .040 3.75

Manley 290940 Block for Chevy Rotating 383ci, 4.040" Bore, 0.040" Overbore, 3.75" Stroke

The Manley 290940 Block for Chevy is a high-performance cast iron engine block engineered to support the demanding needs of modern hot rods and racing applications. This block is designed for a 383ci (6.3L) engine with a 4.040" bore and a 0.040" overbore, making it an excellent choice for those seeking a powerful and reliable powertrain.

The Manley 290940 Block features a 3.75" stroke, providing a balance between torque and RPM capabilities. The block's design includes a raised deck, which allows for increased compression and superior piston ring sealing. It also features 4-bolt main caps for enhanced strength and durability.

The Manley 290940 Block is precision-machined to ensure a perfect fitment of components and features a raised oil pan rail for ease of installation. The block is also equipped with a deep oil pan sump for improved oil capacity and pressure.

With its robust construction, high-quality materials, and attention to detail, the Manley 290940 Block is the perfect foundation for building a high-performance Chevy engine. Whether you're a seasoned racer or a dedicated hot rod builder, this block is an excellent choice for those seeking a powerful and reliable powertrain.

Product Review: Manley 290940 Block for Chevy 383ci (4.040 040 3.75)

Pros:

1. High Quality: Manley is a well-known brand in the automotive industry, renowned for its high-quality engine components. This block is no exception and is designed to withstand the rigors of high-performance applications.

2. Durability: The Manley 290940 block is constructed with high-silicon iron, which increases its strength and durability compared to standard iron blocks.

3. Bore Size: The block offers a bore size of 4.040 inches, which is suitable for many high-performance applications.

4. Deck Height: The 3.75-inch deck height provides ample clearance for large valves and high-lift camshafts, making it suitable for high-performance builds.

Cons:

1. Cost: Manley products are generally more expensive than their competitors, and this block is no exception. This may be a deterrent for those on a tight budget.

2. Availability: Due to its high quality and performance capabilities, this block may be in high demand and difficult to find in stock at some retailers.

3. Installation: Installing a performance block like this one requires a certain level of expertise and the right tools. If you're not comfortable with engine work, you may need to hire a professional to install the block.

Conclusion:

The Manley 290940 block for Chevy 383ci is a high-quality, durable option for those seeking a performance block for their engine build. While it may be more expensive than some other options and require a certain level of expertise for installation, its durability and performance capabilities make it a worthwhile investment for many enthusiasts.

Recommendation:

If you're looking for a high-performance block for your Chevy 383ci and have the budget for it, the Manley 290940 block is a great choice. However, if cost is a concern, you may want to consider other options that are more budget-friendly while still offering good performance.

Details:

American Express.

specifications cranshafengin:

  • for makes: Chevy
  • brand: Manley
  • mpn: 290940
  • part type: Block

general cranshafengin:

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

shipping cranshafengin:

  • type: Fixed
  • service: Standard
  • cost: $0.00
  • transit: 11-18 Days
  • class: Standard

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

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  • # reviews: 594776
  • city: , Ohio
  • rating: 97.7%

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offer cranshafengin:

  • sold: 0
  • options: Ship-to-home
  • availability: In Stock
  • started: June 6, 2025
  • quantity: 1
for makes: chevy, part type: block,
category: auto parts > car truck parts accessories > engines engine parts > crankshafts, sku: 14418638818736611,
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