TSP 426 CID 2000HP Hemi Long Block

Texas Speed 426 CID GEN III HEMI Long Block – 2,000HP Capable

The Texas Speed 426 CID GEN III HEMI Long Block is built for big boost, big power, and bulletproof reliability. Engineered for turbocharged or supercharged builds, this long block starts with a brand-new Callies GEN III HEMI Iron Block and is loaded with premium forged internals, high-flow cylinder heads, and a custom TSP boost camshaft designed for serious performance.

Key Specs:

• Horsepower Rating: 2,000HP Capable
• Block: Brand New Callies GEN III HEMI Iron Block
• Displacement: 426 CID (7.0L)
• Compression Ratio: 10.4:1
• Crankshaft: Callies Magnum 4340 Forged Steel, 4.050″ Stroke
• Connecting Rods: TSP Billet 4340 Super I-Beam, 6.125″
• Pistons: Mahle 2618 Forged Aluminum, 4.095″ Bore, Flat-Top
• Wrist Pins: Heavy-Duty Upgraded Pins for Boosted Loads
• Camshaft: TSP GEN III HEMI Stroker Boost Cam – 238/259 .622″/.618″ 120+5
• Cylinder Heads: AFR 224cc GEN III HEMI CNC Heads
• Oil Pump: Melling High-Volume Oil Pump
• Valvetrain: TSP GEN III HEMI Valvetrain Stabilizer Kit
• Reluctor Wheel: 58x – Compatible with 2013+ GEN III HEMI Platforms

Designed for Big Power Applications

Whether you’re planning a twin-turbo street car or a high-boost drag build, this 426 CID long block is made to handle the load. The combination of our AFR 224cc cylinder heads, custom boost camshaft, and premium rotating assembly ensures maximum airflow, durability, and power output under pressure.