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Christmas Sale Bill Mitchell Products Bmp 086505 - Aluminum Engine Block Chevy Ls Block 9.240 Deck, 3.990 Bore, Billet Caps Tool [HC5SK70p]

$66.99 $214.99 -69%

Bill Mitchell Products BMP 086505 - Aluminum Engine Block The Bill Mitchell Products BMP 086505 Aluminum Engine Block is a high-performance replacement designed for the GM LS series. Crafted from durable 357T6 aluminum alloy, this block offers except

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Bill Mitchell Products BMP 086505 - Aluminum Engine Block

The Bill Mitchell Products BMP 086505 Aluminum Engine Block is a high-performance replacement designed for the GM LS series. Crafted from durable 357T6 aluminum alloy, this block offers exceptional strength and lightweight design. Its 9.240" deck height and 3.990" bore size provide a solid foundation for your engine build. The block comes with billet caps, ensuring a robust and leak-free seal. This engine block is a perfect choice for those seeking to upgrade their LS series engine with a lightweight yet powerful solution.

Key Specifications and Features

The BMP 086505 Aluminum Engine Block boasts several key features that set it apart from other engine blocks. It features standard LS main bearings and four-bolt, cross-bolted billet steel main caps for added strength. The lifters are standard GM tie bar lifters, and the cylinder bores are of a Siamese design, allowing for easy sleeve replacement. The block is compatible with a 4.250" stroke crank and can safely be bored to 4.165". It includes screw-in freeze plugs and a priority main oiling system, ensuring smooth operation and longevity. The block is also designed to be converted to a dry sump oiling system, providing flexibility for various engine builds.
  • Deck Height: 9.240” (Standard Chevrolet) or 9.800”
  • Deck Thickness: .600 minimum

Practical Applications and Benefits

The BMP 086505 Aluminum Engine Block is ideal for a wide range of applications, from street rods to high-performance racing vehicles. Its lightweight design contributes to improved acceleration and fuel efficiency, while the robust construction ensures durability and reliability. This engine block is perfect for those looking to upgrade their LS series engine without compromising on performance. Whether you're building a custom hot rod or a race car, the BMP 086505 Aluminum Engine Block is a reliable choice. Its compatibility with various accessories and ease of installation make it a practical solution for both DIY enthusiasts and professional mechanics.
  • Oil System: Priority main oiling with provisions for dry sump conversion
  • Camshaft Location: Standard camshaft location for easy installation

What Our Customers Say

January 2, 2026

Absolutely no complaints!

It's a very satisfying and high-quality item.

- William E..

January 2, 2026

Absolutely no complaints!

The product is simply superb in quality.

- Paxton S..

January 2, 2026

Absolutely no complaints!

This is a product that is of great quality and very effective.

- Melody S..

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