350 HO Turn-Key Crate Engine Chevrolet Performance


  • 333 hp & 381 lb.-ft.
  • Vortec cylinder heads
  • Aluminum intake and distributor installed
  • Turn-Key includes A/C, PS, and alternator
  • Fuel pump ans spark plug wires NOT included

Have your engine dyno tested by one of our professional engine builders to ensure everything is properly broken in. We can dyno your engine with your components to make sure everything is working harmoniously before shipping you the whole assembly drained and ready to install.

Shipping is free, but there is a delivery fee for residential addresses.

SKU: 19433031 Categories: , Tag:

350 HO Turn Key Crate Engine

333 hp @ 5,100 rpm / 381 lb.-ft. @ 3,700 rpm

Forget rebuilding! The Chevy 350 HO produces more power than just about any small block engine ever installed at the factory: 333 hp and a stump-pulling 381 lb.-ft. of torque.  It is built with all-new parts and high-flow heads. It’s affordable, and it produces power with the legendary dependability of the small block.

The foundation of the 350 HO is a cast-iron block with a four-bolt main. The block is topped with cast iron Vortec heads fitted with 1.94/1.50-inch valves. Its durable Aluminum pistons deliver a 9.0:1 compression ratio, and a hydraulic flat-tappet camshaft requires no periodic lash adjustments. You can hear the effect of the high-lift cam in the idle. The cam is similar to the one found in 1965-67 Corvette 327 engines, but it has even more lift and duration.

When you order your HO 350 from Karl Kustoms in Turn-Key trim level, you also get everything you need for a complete, running engine right out of the crate. The 350 HO Turn-Key crate engine offers you an incredible performance value – all you need to do is add the fuel and enjoy!

Why order your Chevy crate engine from Karl Kustoms? Our employees at Karl Kustoms eat, sleep, and breathe Chevy performance. Our decades of experience in hot rodding, racing, and high-end restorations means we have the know-how and the passion to help you build your dream project. To get started, check out our Kustomize Ur Ride interactive build tool!

View a full list 350 HO V8 Chevy Crate Motors.

What’s Included


  • Intake manifold
  • Carburetor
  • Water pump
  • Distributor

Not Installed

  • Accessory drive package
  • Starter

Important Notes

  • Comes with externally balanced flexplate for automatic transmission; requires externally balanced flywheel for manual transmission.
  • Has right-side oil dipstick
  • Fuel pump and spark plug wires NOT included
  • Some assembly and minor engine tuning required
  • Designed for pre-1976 street vehicles or any off-road vehicle
  • Not intended for marine applications
  • Replaces P/N 19420880


Weight 575 lbs

Manufacturer Part Number



19418192, 19419992, 19420880

350 HO Turn-Key Tech Specs

  • Engine Type: Chevy Small-Block V-8
  • Displacement (cu. in.): 350
  • Bore x Stroke (in.): 4.000 x 3.480
  • Block (P/N 10105123): Cast-iron with four-bolt main caps
  • Crankshaft (P/N 14088526): Nodular iron
  • Connecting Rods (P/N 10108688): Powdered-metal steel
  • Pistons (P/N 12514101): Cast-aluminum
  • Camshaft Type (P/N 24502476): Hydraulic flat tappet
  • Camshaft Lift (in.): .435 intake / .460 exhaust
  • Camshaft Duration (@.050 in.): 212° intake / 222° exhaust
  • Cylinder Heads (P/N 12558060): Vortec iron; 64-cc chambers
  • Valve Size (in.): 1.940 intake / 1.500 exhaust
  • Compression Ratio: 9.0:1 nominal
  • Rocker Arms (P/N 10089648): Stamped steel
  • Rocker Arm Ratio: 1.5:1
  • Water Pump (P/N 88894341): Cast iron, long-style
  • Flexplate (P/N 14088765): 12.750″
  • Recommended Fuel: Premium pump
  • Ignition Timing: 32° Total @ 4,000 rpm
  • Maximum Recommended RPM: 5100
  • Balanced: External
  • Recommended Transmission: SuperMatic 4L70-E Four-Speed Automatic P/N 19368613

Click here to download installation information.

Chevrolet Performance Crate Engines carry a 24 Month or 50,000-mile warranty (whichever comes first) when installed by a qualified independent service center. Chevrolet Performance Crate Engines also come with a 30-day start-up warranty (parts only).

There are some additional limitations on the warranty – please see the official GM warranty documentation for more information.


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Prop65WARNING: These auto parts can expose you to chemicals including phthalates and lead. Installing or using these parts can expose you to other parts containing these chemicals and to engine exhaust, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

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