383 R Stroker Chevy Crate Engine 518 HP Roller Turnkey SBC

383 Stroker Chevy Crate Engine for Sale. 518 HP Turnkey Small Block V8 Package.

If you are building a street car, a strip car, or something that does both, the 383 stroker Chevy crate engine is one of the most proven small block combinations available. At 518 horsepower, this is not a mild cruiser build. It is a fully assembled 383 small block Chevy engine built on a stroked 350 block with a roller cam, forged internals, and everything needed to drop it in and run it. At McClain Auto Part, we have been supplying performance engines out of Cleveland, Ohio since 2009. The 383 R stroker Chevy crate engine is one of the most requested performance builds we carry.

Builders come to us for this package for straightforward reasons. Some are doing a frame-off restoration on a first or second gen Camaro, a Chevelle, a Nova, or a C10 and want a proven high output small block that installs without sourcing a dozen separate components. Others are replacing a tired original engine in a dedicated track car and want real horsepower without the cost and timeline of a custom build. A smaller group is building a street machine that needs to pull hard on the highway and hold its own at the track on weekends.

Whatever your build is, the goal is the same. A turnkey 383 SBC roller engine package that is tested, documented, and ready to install without surprises.

Key Features

• 518 horsepower SBC crate engine, dyno tested before shipping
• 383 stroker displacement, stroked from a 350 small block Chevy platform
• Fully roller valvetrain, roller cam and roller lifters
• Forged steel crankshaft, forged connecting rods
• Forged or hypereutectic pistons depending on build spec
• Aluminum cylinder heads, performance port and combustion chamber
• High volume oil pump, roller timing set
• Intake manifold, carburetor or EFI ready depending on configuration
• Fully assembled and tested, ready to install 383 stroker Chevy motor
• 6-month warranty against internal mechanical defects
• Ships freight to all 50 states from Cleveland, Ohio
• Most orders processed within 3 to 5 business days

Why the 383 Stroker

The 383 is one of the most popular small block Chevy combinations ever built. The concept is simple. You take a standard 350 block, install a 400 small block crankshaft with a 3.75 inch stroke, and combine it with connecting rods and pistons matched to the longer stroke. The result is 383 cubic inches instead of 350, more displacement from the same basic architecture, and a meaningful increase in torque across the entire RPM range.

What the Roller Cam Adds

The roller cam is what separates this build from a basic stroker assembly. A hydraulic roller camshaft reduces valvetrain friction, allows more aggressive lobe profiles without the wear concerns of a flat tappet cam, and produces a broader, more usable power curve. Combined with the additional displacement of the stroker assembly, the roller cam is what pushes this build to 518 horsepower with real street manners below the power band.

Street and Strip Capability

The street and strip 383 stroker engine is built to work in both environments. It produces strong low and mid range torque for street driving, towing, and daily use. At the same time, it pulls hard to redline for track applications where peak horsepower matters. That combination is why the 383 stroker has been a staple of the performance small block market for decades.

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Technical Specifications

Call us to confirm the exact build specification on the current unit in stock. Compression ratio and head casting vary slightly by build run.

What Is Included

The complete Chevy 383 V8 crate motor ships as a fully assembled package. Here is what is included.

Standard With Every Build

• Complete assembled 383 stroker long block
• Aluminum performance cylinder heads, fully assembled
• Hydraulic roller camshaft and lifters
• Roller rocker arms
• Intake manifold, dual plane or single plane depending on build spec
• Valve covers
• Oil pan, high capacity
• Timing cover
• Water pump
• Harmonic balancer
• Flexplate or flywheel depending on transmission spec confirmed at order
• Distributor, HEI or compatible ignition
• High volume oil pump

Carburetor and EFI Options

Carburetor setup is available on most builds. EFI intake and throttle body configurations are available on select builds. Confirm your fuel system preference when you call and we match the build to your application.

Not Included

• Exhaust headers, confirm your chassis header fitment before ordering
• Starter, confirm your transmission bellhousing before ordering
• Alternator and accessory drive, confirm your chassis bracket setup

We tell you exactly what is included on the specific unit in stock before anything ships. No assumptions.

Condition and Build Quality

Every performance 383 stroker with roller cam that ships from our facility goes through a final assembly inspection and dyno test before packaging.

What We Confirm Before Every Unit Ships

• Dyno tested, horsepower and torque figures recorded
• Oil pressure confirmed at operating temperature
• Valve lash and lifter preload set to spec
• Timing set and confirmed before dyno pull
• No oil leaks at gaskets, covers, or pan confirmed before packaging
• All fasteners torqued to spec
• Compression checked on all eight cylinders, numbers recorded
• Visual inspection of all external components before crating

Because this is a new performance build rather than a used pullout, the inspection process confirms build quality and assembly spec rather than donor vehicle condition. You receive the dyno sheet with the engine.

Fitment and Compatibility

The 383 small block Chevy engine fits any chassis or application built around the standard GM small block Chevy architecture. Common applications include:

• First and second gen Chevrolet Camaro
• Chevelle, Malibu, and A-body platform builds
• Nova and X-body builds
• C10 and square body truck builds
• El Camino and G-body builds
• Corvette C2, C3, and C4 applications
• Any custom or kit car chassis designed around SBC dimensions

Transmission Compatibility

The 383 uses a standard GM small block bellhousing pattern. It is compatible with the Muncie 4-speed, Tremec TKO and T56, Richmond 6-speed, TH350, TH400, 700R4, 4L60E, and most other common GM manual and automatic transmission options. Confirm flexplate or flywheel spec when you order.

Engine Mounts

Standard GM small block engine mount dimensions apply. Aftermarket SBC swap mounts are available from multiple suppliers for nearly every common chassis application.

Installation Notes

Fuel System

The 383 runs best on 91 octane or higher given the compression ratio. If you are running a carburetor setup, a standard mechanical fuel pump or electric pump sized for the application works. For EFI builds, confirm injector sizing and fuel pressure requirements with us before ordering.

Ignition

Most builds ship with an HEI distributor ready to run. Timing should be set at initial startup before the first dyno pull on your chassis. Total timing of 34 to 36 degrees is a common starting point for most 383 builds, but confirm with your tuner for your specific compression and cam combination.

Break-In

Even with a roller cam, proper break-in matters. Run the engine at varied RPM for the first 30 minutes, change the break-in oil, and verify all fluid levels and fastener torque before putting the car under load. We include break-in instructions with every engine.

Shipping and Warranty

Shipping

We ship from Cleveland, Ohio to all 50 states. Every complete Chevy 383 V8 crate motor ships fully crated and secured on a freight pallet. Most orders are processed and ready to ship within 3 to 5 business days after confirmation and payment. You receive a tracking number once the engine leaves our facility.

Warranty

Every engine we sell comes with a 6-month warranty against internal mechanical defects. The dyno sheet and build spec documentation ship with the engine. If a covered mechanical failure occurs within the warranty period, contact us. We work toward a fair resolution, whether a replacement, credit, or repair guidance depending on the situation.

We have been honoring warranty claims since 2009.

About McClain Auto Part

We have been supplying performance and replacement engines out of Cleveland, Ohio since 2009. Over 10,000 engines shipped. Rated 4.9 out of 5 stars across 800 or more verified Google reviews. Every engine we sell is inspected or dyno tested by our team before it ships.

When you call us about a 518 horsepower SBC crate engine, you are talking to someone who understands small block Chevy builds, knows the differences between build specs, and can give you accurate information about the specific unit in current inventory.

Frequently Asked Questions

Is This a Complete Turnkey 383 SBC Roller Engine Package?

Yes. The engine ships fully assembled with intake, valvetrain, ignition, and all major components included. Confirm carburetor or EFI preference and flexplate or flywheel spec at time of order.

Is the Engine Dyno Tested?

Yes. Every build is dyno tested before shipping. Horsepower and torque figures are recorded and the dyno sheet ships with the engine.

What Transmission Does This Work With?

The 383 uses a standard GM small block bellhousing pattern. It is compatible with most common GM manual and automatic transmissions. Confirm flexplate or flywheel spec when you order.

What Vehicles Does This Fit?

Any chassis built around the GM small block Chevy architecture. Common applications include first and second gen Camaro, Chevelle, Nova, C10, El Camino, Corvette, and custom chassis builds.

What Fuel Does It Require?

91 octane or higher is recommended given the compression ratio of the build.

Does It Come With Headers?

No. Headers are chassis-specific. Confirm your application and source headers matched to your chassis before ordering.

What Does the Warranty Cover?

Six months from purchase against internal mechanical defects. Build spec and dyno documentation are included at point of sale. Contact us if a covered issue arises.

Is This Street Legal?

Emissions compliance depends on your state and local regulations. Confirm your emissions requirements before ordering. This engine is designed for performance street and strip use.

Ready to Order

If you are looking for a 383 stroker Chevy crate engine, a turnkey 383 SBC roller engine package, or a ready to install 383 stroker Chevy motor for a Camaro, Chevelle, C10, or custom build, call us. Confirm your application, transmission, and fuel system preference and we will tell you exactly what we have in stock. Build spec, dyno numbers, included components, and shipping timeline.

Performance engine inventory moves consistently. If you have questions before committing, ask them.

McClain Auto Part. Cleveland, Ohio. In business since 2009.