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Chevrolet Crate Engines

Inspected Chevrolet crate engines in stock and ready to ship, each one documented before it is palletized and dispatched on insured European road freight.

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Choosing a Chevrolet crate engine

With a Chevrolet V8, the engine family decides most of the installation work, so pick the family first and the power level second. Chevrolet Performance groups its crate engines as small block, LS/LSX, LT and big block, plus factory-sealed racing engines. Builders such as ATK and BluePrint also assemble engines on the small block Chevy pattern, and this page includes used factory engines pulled from Chevrolet cars and trucks.

Small block: the simplest swap into an older Chevy

The 350 and its larger-displacement relatives (377, 383, 400) are the traditional choice for classic Chevrolets and street rods, most of them distributor-fired with a carburetor or bolt-on throttle-body EFI. They need the least wiring, but check the rear main seal style, oil pan, and whether the listing is a short block, long block or dressed engine, because those details decide which flexplate, bellhousing kit and accessories you need.

LS and LSX: plan the controls and fuel system

An LS crate engine needs an engine computer, harness and electronic throttle pedal. Chevrolet Performance's LS control system is built for its LS crate engines with 58x crankshaft reluctor wheels and electronic throttle control, and requires a constant 60 psi fuel supply. Chevrolet also notes those engines ship with an automatic-transmission flexplate, so manual swaps need a separately purchased clutch and flywheel.

LT: direct injection

Chevrolet describes its LT family as engines featuring direct fuel injection. They suit late-model swaps and resto-mods where you want modern controls. The E-ROD versions are Chevrolet's emissions-packaged option, which it describes as the LT1 in a street-legal package.

Big block: size and fuel

The 502, 572 and 632 are for builds where displacement matters more than weight. Chevrolet calls the 632 its largest and most powerful big block, and lists its recommended fuel as premium pump gas of 93 octane or higher, so plan the fuel system, cooling and hood clearance around it.

Circle track and used factory engines

The 602 and 604 circle track engines are sealed crate engines for classes that require them; buy only after confirming your series rules. Used factory engines are a different purchase: confirm the engine code, model year, and whether the harness and computer are included, and ask for the compression readings taken before shipping.

Need a gearbox to match? See transmissions, or compare with Ford crate engines.

Chevrolet crate engines: common questions

What does an LS crate engine need to run in an older car?
It needs an engine control system, a fuel system that holds constant pressure, and the right flexplate or flywheel. Chevrolet Performance's LS control kit includes the engine computer, harness, accelerator pedal and mass airflow sensor, and its instructions call for a constant 400 kPa (60 psi) fuel supply. Depending on the engine version, you may also need to supply accessories, exhaust manifolds or headers, and transmission parts.
What fuel does a Chevrolet Performance 632 big block need?
Chevrolet Performance lists the recommended fuel for its 632 big block as premium pump gasoline, 93 octane or higher. Plan for that in a street car, and size the fuel pump and lines for an engine of that displacement. Check the specification sheet for the exact engine version you are buying, since dressed and base versions can differ in what is included.
What is a Chevrolet E-ROD crate engine?
E-ROD is Chevrolet Performance's emissions-packaged crate engine system. The E-ROD control kit includes an engine computer flashed with a low-emissions calibration, oxygen sensors and an evaporative emissions canister, and it comes with emissions labels. Confirm that the certification covers your vehicle type and model year before buying one for a road car.
Can a sealed 602 or 604 circle track engine be used on the street?
They are built for racing, not road use. Chevrolet Performance groups them with its racing engines, which it describes as factory-sealed competition crate engines. Confirm the engine is approved for your series, and read your rulebook before any work that would disturb the seals.