OVERVIEW:
The BluePrint 383 Small Block Chevy compatible performance crate engine is dyno tested at our factory with guaranteed power levels of 436 horsepower and 443 ft. lbs. of torque. The BluePrint designed and fully calibrated, multi-port fuel injection system comes complete with ECU and full Wiring Harness. This fully optimized EFI system has had over a year of extensive on-road, off-road testing under multiple temperature and road conditions. The optimized calibration is specifically tuned and optimized for this engine and goes well beyond the performance of current self-learn EFI systems on the market today. This BluePrint ECU is designed for hassle-free start up and continuous self-learn operation as you add bolt on parts like headers and exhaust. The ECU controls ignition timing and fuel and installs with 3 simple wired connections (Main Battery, Switched 12V Ignition Wire and Fuel Pump).
The Included BluePrint Engines MPFI controller package contains a fully tested, calibrated, locked ECU, optimized for this specific engine. This package has undergone extensive testing for performance, reliability and the safety of you and your engine.
DESCRIPTION:
- Horsepower & Torque: 436 Horsepower / 443 FT LBS
- Compression Ratio: 10.0:1
- BluePrint Performance Aluminum Heads
- BluePrint Engines Hypereutectic Pistons
- BluePrint Engines Hydraulic Roller
- BluePrint Engines Cast Crankshaft
BLOCK:
- BluePrint Engines High Strength Cast Iron Block
- Drilled and Tapped for Clutch Linkage
- 1-Piece Rear Main Seal
- 4-Bolt Main
- 4.000" Bore
ROTATING ASSEMBLY:
- Cast Crankshaft
- 3.750" Stroke
- 5.700" Connecting Rods
- Hypereutectic Pistons
- Externally Balanced Front and Rear
CYLINDER HEADS:
- BluePrint Performance Aluminum Heads - H8002K
- 64cc Chamber
- 2.020" Intake / 1.600" Exhaust Valves
- 195cc Intake / 75cc Exhaust Runners
CAM SPECS:
- Cam Type: Hydraulic Roller
- .544 Intake / .555 Exhaust Lift
- 230 Intake / 236 Exhaust Duration
- @ .050-110 Degree Lobe Separation
IGNITION TIMING:
- Initial Timing-Computer Controlled by BluePrint ECU
ALSO INCLUDES:
- BluePrint Multi-Port Fuel Injection and Self-Learning Electronic Control Unit (ECU)
- Single Plane Machined Aluminum Intake Manifold
- Polished Chrome BluePrint Air Cleaner
- Polished Chrome Valve Covers
- Satin Aluminum Water Pump
- Spark Plugs and Wires
- Harmonic Balancer
- Timing Cover
- Distributor
- Oil Pan
Notes:
- This engine features a true 4-inch bore, which mathematically yields 377 CID with a 3.75-inch stroke.
BETTER THAN THE REST.
At BluePrint Engines, customer satisfaction is our highest priority. Every engine is built using high-quality components, with each rotating assembly balanced to within two grams of specification. Before shipment, every crate engine is dyno tested and certified to ensure it is ready to deliver the horsepower and torque you expect.
To stand behind that level of quality, BluePrint Engines offers industry-leading warranty coverage, providing confidence and peace of mind whether the engine is installed by an individual or a professional installer. Our standard warranty is fully transferable, adding long-term value and reassurance for our customers.
Warranty Coverage Details:
- BluePrint Engines (including Builder Series)- Standard Warranty 30 months or 50,000 miles (parts and labor)*
- BluePrint Engines Extended Warranty- 48 months or unlimited miles (parts and labor)*
- Race / Motorsports Engines -No warranty
- Marine Engines- 12 months (parts and labor)
- Short Blocks-12 months (parts only)
- Bare Blocks- 6-Month Unaltered
- International Sales- Warranty coverage is handled by the in-country distributor
*Applies to eligible engine part numbers beginning with “B” or “P.” Warranty coverage is subject to terms and conditions. Proper installation and maintenance are required.
Please refer to full warranty documentation for complete details click here.
IT ALL COMES DOWN TO RESULTS.
We make sure we hit our target horsepower and proper torque with every crate engine. We use an advanced computerized balancer to get our rotating assemblies within two grams, ensuring silky smooth power over the entire RPM range. That's precisely why our engines sound and run better than our competitors.
BRAGGING RIGHTS INCLUDED!
A comprehensive, dyno-generated printout showing these critical specs will accompany your delivered engine. No more guessing or wondering what your installed engine's real-world peak horsepower and torque ratings actually are. Any doubters in the crowd? Simply flash 'em your dyno results!
This engine will be dyno tested before it ships to you at no additional charge (others charge $500)!

