HT383 383ci Engine 323 HP @ 4200 RPM

Name: HT383 383ci Engine 323 HP @ 4200 RPM
Brand: CHEVROLET PERFORMANCE
SKU: 809-19355720
Price: 5383.99 USD
Availability: OutOfStock

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This product is no longer available. Please call customer service for assistance at 1-800-345-4545.

HT383 383ci Engine

323 HP @ 4200 RPM
444 ft.-lbs @ 3000 RPM

INSTALLATION NOTES:
Requires addition of carburetor, ignition, and starter (not included)
Rochester Quadrajet or Holley 770-cfm carburetor recommended
Comes with 12-3/4' (12.75') externally balanced 153-tooth automatic transmission flexplate. Requires externally balanced flywheel for manual transmission
Has right-side (passenger) oil dipstick
Designed for pre-1976 street vehicles or any off-road vehicle
Not intended for marine applications
Distributor with Melonized Steel Gear 809-88961867 MUST be used
Engine Break-In Procedure
Use conventional or break-in oil (non-synthetic) for the first oil change, be sure to check the oil level in the engine and prime the oil system with an engine priming tool.
Engines with flat tappet hydraulic cams only - Run the engine between 2,000 and 2,500 RPM's, with no-load on the engine for the first 30 minutes. This is critical to break in the camshaft.
Drive the vehicle with varying speeds and loads on the engine for the first 30 miles. Be sure not to use a lot of throttle or high RPM. Run five or six medium-throttle accelerations to about 3000 RPM (40 to 50 MPH), then letting off in gear and coasting back down to 20 MPH. Run a couple of hard throttle accelerations up to about 5000 RPM (55 to 60 MPH), then letting off in gear and coasting back down to 20 MPH.
Let the engine cool and change the oil and filter using conventional (non-synthetic) oil and check coolant level, top off if necessary. Drive the next 500 miles normally, without high RPM's (below 5000 RPM), hard use, or extended periods of high loading. Change the oil and oil filter again using conventional (non-synthetic) oil. Keep an eye on oil level during the first thousand or so miles.
It would be suitable to use synthetic motor oil after the second recommended oil change and mileage accumulation.

Extra Cubic Inches Deliver
Greater Torque For Your Truck!

Free Shipping!

Got a pre-1980 GM truck with a tired Small-Block? Forget the rebuild or reconditioned used engine and take your trusty truck's capability to the next level with this big-torque HT383 stroker crate engine. Its extra displacement and unique parts are designed to build a wide, flat torque curve you simply won't get with a stock-type rebuild.

The HT383 features a brand-new engine block with four-bolt mains - an upgrade for most production engines that came with two-bolt mains - along with a forged steel crankshaft and a smooth hydraulic roller camshaft. Its 9.1:1 compression ratio allows it to run on regular unleaded gasoline, too.

The HT383 is delivered with an aluminum intake manifold, ready for you to swap over the accessories from your tired engine. It's also backed by a 24-month/50,000-mile (80,000-km) limited warranty.

HT383 TECH SPECS: