BluePrint Engines 436 HP Long Block GM 383 Small-Block Crate Engine

Give your ride solid power that’ll turn heads at stoplights via the GM 383 small-block crate engine! Engineered by BluePrint Engines, it brings dependable power to any street-driven restomod or classic muscle build. It’s tuned for a strong mid-range torque plus it has a 10.0:1 compression, great for pump gas. Designed to be driven hard and often, it features forged rods and hypereutectic pistons at its core.

Features and Benefits:
- High-strength, cast iron engine block with 4.000” bore
- Operates at 436 horsepower and 443 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
- Block is drilled and tapped for clutch linkage
- 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 has externally balanced front and rear
- Hydraulic roller cam. for lower maintenance and better strength than flat tappet cam.
- Ignition timing: 10-16 degrees initial, 32-34 degrees total
- Includes mechanical fuel pump provision and passenger-side dipstick
- Backed by BluePrint Engines' 30-month/50,000 mile-warranty

Also Includes:
- Valve covers
- Oil pan
- Dipstick
- High-volume oil pump
- Timing cover

Cylinder Head Specifications:
- 64cc chambers
- 2.02" intake / 1.60" exhaust valves
- 195cc intake / 75cc exhaust runners

Camshaft Specifications:
- .544” intake / .555” exhaust lift
- 230 degrees intake / 236 degrees exhaust duration
- @ .050-110 degrees lobe separation

Additional Notes:
- Not designed for EGR use.
- This engine features a true 4” bore, which mathematically yields 377 CID with a 3.75” stroke.
- The cylinder heads feature a .500" raised port vs OEM. Please verify header and exhaust clearance prior to installation.