TSP LT2 427 Re-sleeved 10.6:1 Short Block

The Texas Speed 427 LT2 Stroker Short Block is built to deliver maximum displacement and serious performance capability in the C8 Corvette platform. Utilizing a re-sleeved GM LT2 aluminum block and a forged rotating assembly featuring a Callies 4.000″ crankshaft, Texas Speed 6.125″ Super I-Beam connecting rods, and Diamond 4.125″ forged pistons, this short block is internally balanced and precision-built for aggressive naturally aspirated or power-adder applications.

With 427 cubic inches of displacement, a 10.6:1 compression ratio, and a rotating assembly rated for 1,200 horsepower, this combination provides a strong foundation for high-horsepower LT2 builds.

INCLUDED COMPONENTS

• LT2 Gen V Aluminum Bare Block with Aftermarket Sleeves
• Callies Compstar 4.000″ Stroke LT2 Crankshaft
• Texas Speed 6.125″ Super I-Beam Connecting Rod Set
• Diamond 4.125″ Bore Forged Pistons with -21cc Dish
• ARP Main Stud Kit
• Precision LT Billet Oil Restrictor
• Internally Balanced Rotating Assembly

ENGINE SPECIFICATIONS

• Engine Platform: Gen V LT2
• Engine Displacement: 427 CID
• Engine Block: GM LT2 Aluminum Block with Aftermarket Sleeves
• Bore: 4.125″
• Stroke: 4.000″
• Rod Length: 6.125″
• Crankshaft: Callies Compstar 4.000″ Stroke LT2 Crankshaft
• Connecting Rods: Texas Speed 6.125″ Super I-Beam
• Pistons: Diamond 4.125″ Bore Forged Pistons, -21cc Dish
• Compression Ratio: 10.6:1
• Balancing: Internally Balanced Rotating Assembly
• Power Rating: 1,200 Horsepower
• Platform Compatibility: C8 Corvette LT2

INSTALLATION NOTES

• Oil pan modification or an aftermarket oil pan is required.
• Designed for naturally aspirated and power-adder applications.
• Proper tuning and supporting fuel, cooling, induction, and engine management systems are required for high-performance applications.
• Verify final engine configuration and vehicle compatibility before installation.
• Additional vehicle-specific components may be required depending on the application.

Note: The 1,200 HP figure represents the rated horsepower capability of the short-block combination and is not a guaranteed engine output. Final horsepower will depend on the complete engine combination, induction system, power adder, fuel system, tuning, and supporting components. Oil pan modification or an aftermarket oil pan is required.