BluePrint Engines 500 HP 400ci Small Block Short Block Chevy C10 60-87

Build serious torque and performance with this short block engine. Designed for street and strip applications, this high-displacement platform provides a strong foundation for aggressive naturally aspirated builds, restomods, and bracket racing setups.

The high-strength cast iron block includes splayed 4-bolt mains for added durability, while the 4.125" bore and 3.750" stroke deliver strong low-end torque. With a 10.3:1 compression ratio and provisions for mechanical fuel pumps and clutch linkage, this engine is ready for a wide range of performance applications.

Features and Benefits:
- 400 cubic inch small block for high-torque performance builds
- Forged steel crankshaft improves strength and durability
- Forged pistons support higher compression applications
- Heavy-duty connecting rods with 150,000 PSI bolts
- 10.3:1 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 externally balanced rear
- Includes mechanical fuel pump provision
- Drilled and tapped for clutch linkage

Specifications:
- Displacement: 400ci
- Bore: 4.125"
- Stroke: 3.750"
- Compression ratio: 10.3:1
- Connecting rod length: 5.700"
- Piston type: forged (16cc)
- Balance: internal (front) / external (rear)