Chevrolet Performance SP350/385 Base 350ci Engine

$7,136.37

SP350/385 Base 350ci Engine

385 HP @ 5,600 RPM
405 ft.-lbs. Torque @ 3,600 RPM

Category: Engines and Components

Description
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Chevrolet Performance SP350/385 Base 350ci Engine
Part Number: 809-19433039

SP350/385 Base 350ci Engine

INSTALLATION NOTES:

Use the Holley 770-Cfm four-barrel carburetor p/n 809-19170093 to achieve the listed horsepower and torque
Requires four-barrel carburetor, spark plug wires, and additional components to complete assembly
Comes with a 12.750” externally balanced 153-tooth automatic transmission flexplate. Change to externally balanced flywheel for manual transmission applications.
Designed for pre-1976 street vehicles or any off-road vehicle.
Some assembly and minor engine tuning required
Not intended for marine application

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, with no load on the engine for the first 30 minutes. This is critical to breaking 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 let off in gear and coast back down to 20 MPH. Run a couple of hard throttle accelerations up to about 5000 RPM (55 to 60 MPH), then let off in gear and coast back down to 20 MPH.

Let the engine cool and change the oil and filter using conventional (non-synthetic) oil and check the coolant level, top off if necessary. Drive the next 500 miles normally, without high RPMs (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 levels 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.

19433039 supersedes 19417624, 19432101

Specifications:

Engine Block Material – Cast iron

Cylinder Head Material – Aluminum

Engine Make/Size – Chevy Small Block

Compression Ratio – 9.6:1

Cylinder Heads Included – Yes

Intake Manifold Included – Yes

Carburetor Included – No

Distributor Included – Yes

Throttle Body Included – No

Oil Pan Included – Yes

Timing Cover Included – Yes

Water Pump Included – Yes

Harmonic Balancer Included – Yes

Valve Covers Included – Yes

Air Cleaner Included – No

Spark Plugs Included – Yes

Spark Plug Wires Included – No

Computer Included – No

Wiring Harness Included – No

Quantity – Sold individually

Engine Displacement – 350 ci.

Intake Manifold Type – Carbureted

Water Pump Style (application) – Long

Shipping Weight: – 486

Package Height: – 42

Package Depth: – 41.5

Package Width: – 30.5

Part Category: Performance Parts

The Foundation for a High-Revving 350 Small-Block!Free Shipping!

The SP350/385 crate engine incorporates modern technologies such as a beehive-type valve springs to take the classic 350 Small-Block to new levels of high-rpm performance – without sacrificing the signature torque that has made it the benchmark of V-8 engines for nearly half a century.

In fact, the 385 horsepower rating of the engine is complemented by excellent low-rpm torque, with the SP350/385 generating 405 lb.-ft. of torque at 3,600 rpm. It’s all due to the high-flow, lightweight aluminum cylinder heads. They’re based on the proven Fast Burn design, with large intake runners and 2.00/1.55-inch valves. The beehive valve springs enable greater high-rpm performance and durability, allowing the engine to rev higher to make the most of every cubic foot of air drawn through it.

As with all of Chevrolet Performance’s Small-Block crate engines, the SP350/385 is built with a cast-iron block with four-bolt mains. It also features a forged steel crankshaft, an aggressive hydraulic roller camshaft and durable, high silicon pistons. In this value-driven ”Base” crate engine package, it also includes the intake manifold, distributor, water pump, damper and flexplate.

SP350/385 BASE TECH SPECS: