The Texas Speed 427 CID Gen 4 Resleeved Short Block is built for serious high-performance LS applications requiring increased displacement, strength, and a premium rotating assembly. Starting with a Gen 4 aluminum block, it's upgraded with PowerBore cylinder sleeves and paired with a knife-edged center counterweight crankshaft for a durable foundation capable of supporting demanding performance builds.
- 427 CID displacement
- Gen 4 resleeved aluminum LS block with PowerBore cylinder sleeves
- Knife-edged center counterweight crankshaft
- TSP 6.125" Super I-Beam connecting rods
- Wiseco 4.125" forged pistons — available in -4cc or -13cc dish (select below)
- Includes engine crate and engine cradle for safe handling and shipping, plus 12 qts of Royal Purple break-in oil (recommended for properly seating a new engine)
Application: Ideal for high-performance naturally aspirated and forced-induction LS builds where increased displacement and a strong resleeved aluminum block are required. This is a universal LS-platform short block — not tied to a specific vehicle.
Not legal for sale or use in the state of California.
