BluePrint Engines SBC 383 Carbureted Crate Engine Base Dressed 410 HP

This crate engine (BP38315CTC1) delivers 410 horsepower and 422 ft.-lbs. of torque with smooth, dependable performance for street-driven builds. Featuring a high-strength cast iron block with a 4-bolt main and 1-piece rear main seal, this engine provides a solid foundation for reliable power. Its aluminum cylinder heads, hypereutectic pistons, and hydraulic roller cam ensure durability, heat resistance, and reduced maintenance over time. The Holley 750-CFM carburetor delivers crisp throttle response and excellent fuel control, while the externally balanced rotating assembly enhances smoothness and longevity. Complete with premium base-dressed components like valve covers, intake manifold, and distributor, this crate engine blends classic muscle sound with modern precision.

Features and Benefits:
- High-strength, cast iron engine block with 4.000" bore
- Operates at 410 horsepower and 422 ft.-lbs. torque
- 9:1 (87 Octane compatible)
- 4-bolt main offers stronger bottom end for high-HP applications
- 1-piece rear main seal ensures stronger, leak-free security
- Block is drilled and tapped for clutch linkage
- Uses Holley Classic 750-CFM vacuum secondary carburetor with manual choke
- Built-in BluePrint Engines Muscle Series cylinder heads made of aluminum
- Cast iron crankshaft with 3.750" stroke and forged 5.700" rods
- Connecting rods use OEM-type design and 150,000 PSI bolts
- Hypereutectic pistons for better strength and heat resistance
- Rotating assembly’s front and rear are externally balanced
- Hydraulic roller cam lowers maintenance and is stronger than flat tappet cam
- Ignition timing: 34 degrees total at 3500 RPM
- Includes mechanical fuel pump provision and passenger-side dipstick
- Backed by BluePrint Engines' 30 month/50,000 mile-warranty

Cylinder Head Specifications:
- 64cc Chambers
- 2.02" Intake / 1.60" Exhaust Valves
- 195cc Intake / 75cc Exhaust Runners

Camshaft Specifications:
- 0.495" Intake / 0.502" Exhaust Lift
- 220 Degree Intake / 224 Degree Exhaust Duration
- @ 0.050-114 Degree Lobe Separation

Base Dressed Includes:
- Valve Covers
- Oil Pan
- Timing Cover
- Intake Manifold
- HEI Distributor

Additional Notes:
- Specifically built for use with 87 Octane fuel.
- This engine features a true 4" bore, which mathematically yields 377 CID with a 3.75" stroke.
- NOT desiged for EGR.
- The aftermarket intake manifold installed on this engine may not be compatible with OEM accessory brackets that use intake mounted bosses.
- The performance aluminum cylinder heads on this engine feature a 0.500 raised port vs OEM.