TSP Iron 383 C.I.D. Assembled Short-Block

TSP Iron 383 LS Short Block

The TSP Iron 383 LS Short Block is built for strength, reliability, and serious horsepower. Featuring premium Texas Speed components and forged internals, this short block provides the foundation you need for naturally aspirated or forced induction applications. Designed to withstand up to 1200 horsepower, it’s the perfect choice for high-performance street or track builds.

Key Components

• TSP 4340 Forged Crankshaft – Precision-balanced for smooth operation and durability.
• TSP I-Beam Connecting Rods – Forged for maximum strength under heavy load.
• Wiseco -3cc Forged Pistons – Designed for performance and reliability in high-horsepower applications.
• ARP Main Studs – Secure clamping and superior bottom-end strength.

Performance Rating

• Displacement: 383 cubic inches
• Horsepower Capacity: Handles up to 1200 HP
• Block Type: Gen IV LS Iron Block
• Crank Reluctor Wheel: 58x

Important Notes

• Every short block comes equipped with a 58x crank reluctor wheel. For use in a 24x Gen III vehicle, a Lingenfelter Crank Sensor Conversion Box (Part No. #L460065397) is required.
• This listing is for a short block only. Cylinder heads, valvetrain, and other components are not included.
• In stock and ready to ship — not a built-to-order item.