BluePrint Engines Pro Series 627 HP Long Block GM 502 Big-Block Crate Engine

Harness drag race-ready power via the GM 502 big-block crate engine! This long block from BluePrint Engines delivers 627 horsepower and a crisp 10.:1 ratio. It’s backed by a forged rotating assembly with H-beam rods. When put together, it adds up to an assembly that’s perfect for strip builds and high-powered restomods.

Features and Benefits:
- High-strength, standard deck, cast iron engine block with 4.466” bore
- Operates at 627 horsepower and 569 ft.-lbs. torque
- 10.0:1 compression ratio for stronger throttle response and crisp performance
- 4-bolt main offers stronger bottom end for high-HP applications
- 1-piece rear main seal ensures stronger, leak-free security
- Built-in BluePrint Engines Muscle Series cylinder heads made of aluminum
- New forged steel crankshaft with 4.000" stroke and 6.385" connecting rods
- Rods use H-beam design, great for high-RPM and nitrous use
- Forged pistons for incredible strength and impact resistance
- Rotating assembly is internally balanced for smoother, more stable operation
- Hydraulic roller cam. for lower maintenance and better strength than flat tappet cam.
- Includes mechanical fuel pump provision
- Backed by BluePrint Engines' 30 month/50,000-mile warranty

Also Includes:
- Valve covers
- Oil pan
- Timing cover
- Harmonic balancer

Cylinder Head Specifications:
- 119cc chambers
- 2.30" intake / 1.88" exhaust valves
- 316cc intake / 124cc exhaust runners

Camshaft Specifications:
- .647” intake / .647” exhaust lift
- 248° intake / 254° exhaust duration
- @ .050-112° lobe separation

Additional Notes:
- Not designed for use in pollution-controlled vehicles.
- The cylinder heads feature a .300" raised exhaust port vs an OEM casting. Please verify clearance prior to installation.