BBC Lower Main Bearing Billet Alm Blocks

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$210.26
MSRP: $242.99
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Info

SKU:M77MB4118VXL24

SKU: M77MB4118VXL24

MPN: MB4118VXL24

Info

SKU:
M77MB4118VXL24
MPN:
MB4118VXL24

Description

The BBC Lower Main Bearing Billet Aluminum Blocks (MPN MB4118VXL24) are specifically engineered for big-block Chevrolet builders who prioritize precision and durability in their engine assemblies. These blocks are essential for applications where reliable main bearing support is critical, particularly in high-performance and competition settings.

Constructed from premium billet aluminum, these lower bearing blocks offer superior dimensional stability and load distribution compared to traditional cast alternatives. This construction resists distortion under extreme conditions, ensuring that the integrity of the main bearings is maintained, which is vital for crank longevity and overall engine performance.

Ideal for BBC 454, 396, 427, and 502 builds, these blocks are designed to support reliability in high-RPM and boosted applications. Their lightweight design of 2.79 lbs per piece provides structural advantages without significant weight penalties, making them a valuable addition for serious engine builders.

SpecificationDetail
MPN / Part Number
MB4118VXL24
SKU
M77MB4118VXL24
Dimensions
3.5 x 1.15 x 12.6 in
Weight
2.79 lbs
Engine Platform
Big Block Chevrolet (BBC)
Material Composition
Billet Aluminum
Application Type
Lower Main Bearing Block
Ideal For
Performance builds, high-RPM duty, boost/nitrous applications
Installation Note
Requires proper block prep, torque specs, and bearing shell matching

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