BluePrint BP38350CT1 383 Crate Engine – 96-00 GM Vortec Truck/SUV

The Ultimate 383 Stroker Crate Engine for 1996-2000 GM Trucks and SUVs

The BluePrint BP38350CT1 383 stroker crate engine is designed specifically for 1996–2000 Chevrolet and GMC trucks and SUVs originally equipped with a 350ci (5.7L) Vortec V8 . As part of our extensive Small Block Chevy collection, this 383 cubic inch stroker delivers a proven +47 rear-wheel horsepower and +55 rear-wheel ft-lbs of torque increase over the factory engine—without requiring any ECU tuning or recalibration . Whether you’re restoring a Silverado, Suburban, Tahoe, Sierra, or Yukon, this BluePrint 383 crate engine delivers the power, reliability, and drop-in compatibility that GM truck enthusiasts demand.

What Makes the BluePrint 383 Vortec Engine a Game-Changer for GMT400 Trucks?

The BP38350CT1 is engineered specifically for the 1996-2000 GMT400 platform, featuring Vortec fuel injection and factory ECU . Unlike traditional stroker engines that require aftermarket tuning or carburetor conversions, this engine is designed to work seamlessly with your truck’s factory EFI system . Every engine is dyno-tested with factory EFI and ECU in a Vortec-equipped truck to verify advertised horsepower gains .

Proven Horsepower and Torque Gains

This 383 stroker produces impressive performance improvements over the factory 5.7L Vortec:

• +47 rear-wheel horsepower at 4,400 RPM 

• +55 rear-wheel ft-lbs torque at 4,400 RPM 

• 10.0:1 compression ratio – works with factory ECU 

• 49-state legal with CARB Executive Order #D-824-1 

Complete 383 Stroker Engine Specifications

BluePrint Cast Iron Block

The foundation of this 383 stroker crate engine is a NEW BluePrint cast iron block, manufactured and machined in the USA . Key block features include :

• 4-bolt main caps for exceptional bottom-end strength

• 1-piece rear main seal for leak-free operation

• 4.000-inch bore x 3.750-inch stroke

• External front and rear balance

• Mechanical fuel pump provision

• Passenger side dipstick

• Drilled and tapped for clutch linkage

Note: This engine features a true 4-inch bore, which mathematically yields 377 CID with a 3.75-inch stroke—but is classified as a 383 stroker based on the rotating assembly configuration .

Rotating Assembly

The rotating assembly in the BP38350CT1 is built for durability and increased displacement :

• New BluePrint steel crankshaft with 3.750-inch stroke 

• OEM-type 5.700-inch connecting rods with 150,000 psi bolts 

• Hypereutectic pistons for excellent strength and heat resistance 

• External front and rear engine balance 

BluePrint Aluminum Cylinder Heads

The BluePrint aluminum cylinder heads (H8002K) provide exceptional flow :

• 64cc combustion chambers

• 2.02-inch intake valves

• 1.60-inch exhaust valves

• 195cc intake runners

• 75cc exhaust runners

Hydraulic Roller Camshaft Specifications

What’s Included with Your BP38350CT1 Crate Engine

The BP38350CT1 comes as a long block assembly with the following components included :

Important Note: This engine is designed to reuse your factory fuel injection system, intake manifold, and ECU . The following components are not included and must be transferred from your original engine :

• Intake manifold

• Throttle body

• Distributor

• Water pump

• Flexplate/flywheel

• Spark plugs and wires

• Fuel injection components

• ECU and wiring harness

1996-2000 GM Vortec Truck Compatibility

Vehicle Fitment

The BP38350CT1 is specifically designed for :

• 1996-2000 Chevrolet Pickup (C/K Series, Silverado)

• 1996-2000 GMC Pickup (Sierra)

• 1996-2000 Chevrolet SUV (Suburban, Tahoe)

• 1996-2000 GMC SUV (Yukon, Yukon XL)

• All vehicles originally equipped with a 350ci (5.7L) Vortec V8

Required Components

For proper installation, you will need :

• Factory EFI system from your original engine (required for emissions compliance)

• Factory ECU (no tuning required)

• Late-style 350 CID (1-piece rear main) weighted flexplate/flywheel 

• 400 CID weighted harmonic balancer (external balance) 

• Reuse of factory front accessory drive (may require modification to brackets) 

Emissions Compliance

The BP38350CT1 is 49-state legal with California Air Resources Board (CARB) Executive Order Number D-824-1 . This makes the engine legal for use in emissions-controlled vehicles when installed in a GM pickup or SUV model year 2000 or older that came with a California-certified Gen 1 naturally aspirated 5.7L gasoline engine .

Installation Notes and Technical Information

Important Installation Considerations

Before installing your BluePrint 383 stroker, review these critical notes :

• No ECU tuning or recalibration is required – Designed to work with factory ECM 

• No intake manifold included – Reuse factory Vortec intake manifold 

• 91 octane fuel recommended 

• Computer-controlled ignition timing – Factory ECU controls timing 

• Firing order: 1, 8, 4, 3, 6, 5, 7, 2 

• Total oil capacity: 5 quarts with correct BPP51061 filter 

• Spark plug: NGK BKR5E (BPP7938) gap .035″ 

Front Accessory Drive Considerations

This engine may require modification to existing front accessory drive mounting brackets if retaining the OEM front accessory drive . Verify fitment with your specific vehicle’s accessory configuration before installation.

Warranty

BluePrint Engines backs the BP38350CT1 with a comprehensive 30-month / 50,000-mile warranty .

BP38350CT1 FAQs

What vehicles does the BP38350CT1 fit?

The BP38350CT1 is designed for 1996-2000 Chevrolet and GMC trucks and SUVs originally equipped with a 350ci (5.7L) Vortec engine . This includes Silverado, Sierra, Suburban, Tahoe, Yukon, and related GMT400 platform vehicles.

Does the BP38350CT1 require ECU tuning?

No. This engine is specifically designed to work with the factory ECU and fuel injection system . No tuning or recalibration is required.

What is the horsepower increase over stock?

The BP38350CT1 delivers +47 rear-wheel horsepower and +55 rear-wheel ft-lbs torque at 4,400 RPM compared to the factory Vortec 5.7L engine .

Is the BP38350CT1 emissions legal?

Yes. The BP38350CT1 has a CARB Executive Order number D-824-1 and is 49-state legal for installation in 2000 or older GM trucks/SUVs that came with a California-certified 5.7L engine .

What components are NOT included with the engine?

The BP38350CT1 is a long block assembly. You will need to reuse your factory intake manifold, throttle body, distributor, water pump, ECU, fuel injection components, and a late-style 350 weighted flexplate/flywheel .

Will the BP38350CT1 work with my factory ECU?

Yes. The engine is specifically designed to work with the factory ECU from 1996-2000 Vortec-equipped GM trucks .

Why Choose NH Race Engine for Your 383 Crate Engine?

As a Netherlands-based specialist serving performance enthusiasts across Europe, NH Race Engine brings unmatched expertise to your GM truck project. We understand the unique requirements of European builds—from shipping logistics to regional considerations. Browse our Small Block Chevy collection and other crate engine offerings to find the perfect solution for your build.

Contact NH Race Engine today to discuss your 383 stroker engine requirements. Our expert team can help you navigate compatibility, shipping, and installation considerations for your European GM truck.