BluePrint Engines 670 HP 540ci Big Block Short Block Chevy C10 60-87

Step into serious horsepower territory with this short block engine. Built for extreme performance applications, this platform delivers massive displacement and strength for drag racing, high-horsepower street builds, and marine setups.

Engineered with a forged rotating assembly, this short block features a forged crankshaft, H-beam connecting rods, and forged pistons to handle aggressive power levels. The high-strength cast iron block includes splayed 4-bolt mains for maximum durability, while the 4.500" bore and 4.250" stroke produce exceptional torque and top-end capability. With a 10.5:1 compression ratio and internal balance, this engine provides a solid foundation for high-flow cylinder heads and performance induction systems.

Features and Benefits:
- 540 cubic inch big block for extreme performance builds
- Forged steel crankshaft improves strength and durability
- Forged H-beam connecting rods support high horsepower
- Forged pistons designed for aggressive applications
- 10.5:1 compression ratio for strong performance output
- Splayed 4-bolt main increases bottom-end strength
- High-strength cast iron block with precision machining
- Internally balanced front and rear for smooth operation
- Includes mechanical fuel pump provision
- Supports high-flow cylinder heads and aggressive induction systems

Specifications:
- Displacement: 540ci
- Bore: 4.500"
- Stroke: 4.250"
- Compression ratio: 10.5:1 (with 118cc heads)
- Connecting rod length: 6.385"
- Piston type: forged (13cc)
- Balance: internal (front) / external (rear)