Chevrolet Performance 5.7L 350 HO 333 HP Turnkey Crate Engine – 19433031

The Classic 350 HO Crate Engine That Powers Dreams

The Chevrolet Performance 5.7L 350 HO 333 HP Turnkey Crate Engine (19433031) is a smart and powerful alternative to rebuilding your tired small block . This 350 cubic inch V8 delivers 333 horsepower and 381 lb-ft of torque —more power than almost every 350 engine ever offered in a production vehicle . As part of our extensive Small Block Chevy collection, this turnkey crate engine is assembled with all-new parts and high-flow Vortec cylinder heads, giving you the foundation for your classic car restoration, street rod, or muscle car project .

What Makes the 350 HO a Smart Alternative to Rebuilding?

The 350 HO crate engine is Chevrolet Performance’s entry-level performance offering, designed to deliver reliable power without the headaches of a traditional rebuild . Instead of searching for a machine shop and waiting weeks for machining work, you get a factory-assembled engine that’s ready to drop in. With its 9.0:1 compression ratio and premium pump gas compatibility, this engine delivers dependable performance for street-driven vehicles . Chevrolet Performance pioneered the high-performance crate engine half a century ago—and they have never stopped working to offer enthusiasts new and more powerful solutions for their projects .

350 HO Horsepower and Torque Figures

This turnkey 350 crate engine produces impressive output that makes it a favorite among classic car builders:

• 333 horsepower at 5,100 RPM 

• 381 lb-ft torque at 3,700 RPM 

• 9.0:1 compression ratio – pump gas friendly 

• 5,100 RPM maximum recommended engine speed 

Complete 350 HO Engine Specifications

Engine Block and Rotating Assembly

The foundation of this Chevy 350 HO crate engine is a new cast iron block featuring :

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

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

• 4.000-inch bore x 3.480-inch stroke 

• External engine balance 

• Nodular iron crankshaft for durability 

• Powdered metal steel connecting rods 

• Cast aluminum pistons 

Vortec Cylinder Heads

The 350 HO is topped with Vortec cast iron cylinder heads—some of the best-flowing production heads GM ever produced :

• 64cc combustion chambers 

• 1.940-inch intake valves 

• 1.500-inch exhaust valves 

• 170cc intake runners

• Stamped steel 1.5:1 rocker arms 

Hydraulic Flat Tappet Camshaft Specifications

What’s Included with Your Turnkey 350 HO Crate Engine

The 19433031 is a fully dressed turnkey long block with the following components included :

Important Note: This engine is a turnkey package but still requires some assembly and minor tuning upon installation . For manual transmission applications, an externally balanced flywheel is required (not included) .

350 HO Crate Engine Installation Notes

Important Considerations Before Installation

Before installing your Chevrolet Performance 350 HO crate engine, review these critical notes :

• Not intended for marine applications – This engine is designed for automotive use only 

• Designed for pre-1976 street vehicles or off-road vehicles 

• Requires premium pump fuel for optimal performance 

• 32° total timing at 4,000 RPM is recommended 

• Right-side oil dipstick location 

• Requires fuel line from fuel pump to carburetor 

Emissions and Warranty Information

Emissions Compliance: This engine is intended for competition use only and should be installed in pre-1976 street vehicles or off-road applications .

Warranty: Chevrolet Performance crate engines include a 24-month or 50,000-mile/80,000-kilometer limited warranty, whichever comes first .

350 HO Crate Engine FAQs

How much does a Chevrolet Performance 350 HO crate engine cost?

Pricing for the 19433031 varies by market and region. Contact NH Race Engine directly for current European pricing and availability.

What’s included with the 350 HO turnkey engine?

The 350 HO comes as a complete turnkey package including intake manifold, carburetor, distributor, water pump, oil pan, valve covers, harmonic balancer, flexplate, spark plugs, wires, air cleaner, fuel pump, starter, and more . The engine requires some assembly and minor tuning .

Is the 350 HO a good engine?

The 350 HO is widely regarded as one of the best value crate engines on the market. Its cast iron block, Vortec heads, and hydraulic flat tappet cam deliver reliable performance backed by General Motors’ engineering and a 2-year warranty .

What’s the difference between 350 HO and standard 350?

The 350 HO features Vortec cylinder heads for improved flow, a performance camshaft, and a 4-bolt main block—delivering significantly more power than production-spec 350 engines .

What vehicles can the 350 HO be installed in?

The 350 HO is designed for pre-1976 street vehicles or off-road applications . Popular applications include classic Chevelles, Camaros, Novas, Corvettes, street rods, and custom builds.

Does the 350 HO require premium fuel?

Yes, premium pump gas is recommended for optimal performance and drivability .

Why Choose NH Race Engine for Your SBC Crate Engine?

As a Netherlands-based specialist serving performance enthusiasts across Europe, NH Race Engine brings unmatched expertise to your small-block Chevy 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 350 HO engine requirements. Our expert team can help you navigate compatibility, shipping, and installation considerations for your European build.