Dart Short Block Kit 427ci LS LS3/LS7 58T 4.000x4.125 03424272DT

Dart Short Block Kit 427ci LS LS3/LS7 58T 4.000x4.125

The Dart Short Block Kit 427ci LS LS3/LS7 is a high-performance engine solution designed for automotive enthusiasts, DIY builders, and professional racers. Crafted by Dart, a trusted name in the performance engine industry, this kit simplifies the engine building process while delivering impressive power and durability. Ideal for street performance and Sportsman racing, this short block kit allows you to take your engine build to the next level with premium components.

Featuring a robust 427 cubic inch GEN III cast iron block, this professionally built short block comes with pre-engineered and dyno-tested combinations, ensuring reliability and performance at an affordable cost. The Dart SHP (Special High Performance) group has designed this kit to meet the demands of serious performance applications.

Key features

• Compatible with LS3 and LS7 engine configurations
• Internally balanced for optimal performance
• 4.125-inch bore and 4.000-inch stroke for enhanced power
• Constructed with K1 forged 4340 steel crankshaft and H-beam rods
• Includes Wiseco forged flat top or dish pistons with full floating pin
• Plate honed cylinders for improved accuracy and performance
• Coated cam bearings for reduced friction
• 58-tooth reluctor for precise timing

Technical details

• Engine Type: LS3/LS7
• Displacement: 427 cubic inches
• Block Material: Cast iron
• Bore: 4.125 inches
• Stroke: 4.000 inches
• Crankshaft: K1 forged 4340 steel
• Connecting Rods: K1 forged 4340 H-beam rods
• Pistons: Wiseco -8cc forged

Applications / fitment

This short block kit is typically used in high-performance street applications and competitive racing environments.

• Passenger vehicles seeking enhanced performance
• 4x4 vehicles for off-road racing
• Sportsman racing applications
• Custom engine builds for enthusiasts
• Performance upgrades in workshops

Why buy from Mick’s Gone Bush?

• Trusted Australian business focused on reliable power, auto-electrical, and service parts.
• Stock sourced from reputable distributors and brands.
• Practical support for trade, off-grid, and fleet customers.
• Clear shipping, warranty, and customer service.
• Expert advice available for your performance needs.

Frequently asked questions

What is included in the Dart Short Block Kit?

The kit includes a cast iron block, crankshaft, connecting rods, pistons, and cam bearings, all designed for high performance.

Is this kit compatible with other LS engine types?

This short block kit is specifically designed for LS3 and LS7 configurations.

What kind of performance can I expect from this kit?

With a displacement of 427 cubic inches and premium components, you can expect significant power and torque improvements.

Can I install this kit in my garage?

Yes, the kit is designed for DIY installation, but some mechanical knowledge and tools are recommended for best results.

What type of fuel is recommended for this engine?

High-octane fuel is recommended to achieve optimal performance from the Dart Short Block Kit.