TSP 427CID Dart 1/2 6-Bolt 2000HP Short Block Engine.

The TSP 427 C.I.D. Dart LS 2000HP Short Block is built as a foundation for extreme-horsepower combinations and is engineered to support up to 2,000 horsepower. Built around the robust Dart LS Next platform and equipped with high-performance rotating components, this short block is purpose-built for high-boost and high-RPM applications.

Whether you’re building a dedicated drag car or an extreme street machine, the 427 C.I.D. combination provides a heavy-duty foundation for serious performance applications.

INCLUDED COMPONENTS

• Dart LS Next Cast Iron Block Kit with Powdercoating
• Callies Magnum 4.000″ Stroke Crankshaft
• 58X Reluctor Wheel
• Wiseco Boostline 6.125″ Connecting Rods with ARP 2000 Bolts
• Diamond Forged Flat Top Pistons
• LS3 Windage Tray
• 1/2″ Head Stud Kit – 23 Piece
• LS-LT Minihoops

ENGINE SPECIFICATIONS

• Engine Displacement: 427 C.I.D.
• Horsepower Capability: Rated Up to 2,000 HP
• Engine Block: Dart LS Next Cast Iron
• Crankshaft: Callies Magnum 4.000″ Stroke, 58X Reluctor, 8 Counterweight, Balanced
• Connecting Rods: Wiseco Boostline 6.125″ with ARP 2000 Bolts – 2,000 HP Rated
• Pistons: Diamond Forged Flat Top, 4.125″ Bore, -3.0cc
• Reluctor: GM 58X Reluctor Wheel for 2006+ LS Engines

INSTALLATION NOTES

• This short block is designed for serious high-horsepower performance applications.
• Proper engine management, tuning, fuel delivery, cooling, and supporting systems are required.
• Verify 58X reluctor compatibility with the vehicle’s engine management system before installation.
• Final compression ratio will depend on cylinder head combustion chamber volume, head gasket thickness, deck height, and final engine configuration.
• Proper installation and engine setup practices are required for high-boost and high-RPM applications.
• Additional vehicle-specific components may be required for installation.

Note: The 2,000 HP figure represents the rated horsepower capability of the short-block combination and supporting rotating components, not a guaranteed engine output. Final horsepower depends on the complete engine combination, induction system, power adder, fuel system, tuning, and supporting components.