🔥 408ci Street King Short Block

💥 Big Cubes. Brutal Torque. Built to Perform.

🔧 Overview

The 408ci Street King Short Block is the perfect foundation for customers looking to build a serious LS-based performance engine. Combining increased displacement with a forged stroker rotating assembly, the 408 delivers outstanding torque, exceptional throttle response, and the durability needed for both naturally aspirated and boosted applications.

Whether you're building a street car, drag car, truck, or custom swap, the 408ci Street King offers the ideal balance between horsepower potential, drivability, and reliability. With more cubic inches than a traditional LS build, the 408 provides strong power throughout the RPM range while maintaining the flexibility to be paired with a wide variety of cylinder head and camshaft combinations.

This short block is designed for builders who want complete control over their top-end combination while starting with a proven performance foundation.

⚙️ What Is Included

• Fully machined and inspected LS block
• Forged stroker crankshaft
• Forged H-beam connecting rods
• Forged pistons
• Performance rod and main bearings
• Performance piston rings
• Premium timing components
• Upgraded Melling oil pump
• Precision balancing and blueprint assembly

🔥 Performance Stages

Street Series – Proven Performance

A reliable performance foundation for street-driven builds and naturally aspirated combinations.

Features:

• Forged stroker rotating assembly
• Street-performance piston and package
• Balanced and assembled short block
• Excellent reliability and drivability

Power Capability:
Up to 700 HP

Street/Strip Series – Built for More

Designed for aggressive street and strip combinations requiring increased strength and durability.

Features:

• Upgraded forged rotating assembly
• Performance bearing package
• Higher Compression Lightweight Forged Pistons
• Main Stud upgrade
• Designed for higher RPM

Power Capability:
Up to 1,000 HP

Dominator Series – Maximum Strength

The ultimate 408 Street King short block, engineered for customers chasing serious horsepower and demanding reliability.

Features:

• Premium forged crankshaft
• Premium forged connecting rods
• Premium forged pistons
• High-performance bearing package
• Main Stud Upgrade
• Blueprint assembled to exacting tolerances
• Designed for extreme naturally aspirated applications

Power Capability:
1,200+ HP

👑 Why Choose the 408ci Street King Short Block?

• Increased displacement for outstanding torque production
• Forged rotating assembly for maximum durability
• Excellent balance of street manners and performance
• Ideal foundation for naturally aspirated or boosted builds
• Proven LS platform with exceptional aftermarket support

⚠️ Important Notes

• Cylinder heads, camshaft, valvetrain, intake manifold, oil pan, timing cover, and gaskets are not included
• All short blocks are built to order
• Final specifications may vary based on customer requirements and intended application
• Professional assembly of top-end components and tuning are recommended

📋 Recommended Applications

✅ Street Performance Builds
✅ Street/Strip Combinations
✅ Restomod Projects
✅ Turbocharged Applications
✅ Supercharged Applications
✅ Custom LS Swaps