A crate engine is a complete, ready-to-install engine supplied by a manufacturer or engine builder, either new or remanufactured, usually as a long block or a fuller package. Compared with rebuilding your own engine, a crate engine costs more up front but saves downtime and removes the uncertainty of what a teardown will find. Compared with a long block, “crate engine” usually implies a more complete assembly, though the terms overlap.
Crate engine vs rebuild
| Factor | Crate engine | Rebuild your engine |
|---|---|---|
| Downtime | Short: swap and go | Longer: teardown, machining, parts, assembly |
| Cost certainty | Known price up front | Can grow if the block or crank needs more work |
| Matching numbers | Replaces the original block | Keeps the original block |
| Quality control | Consistent build process | Depends on the shop |
| Core | Often a core charge for your old engine | Your engine is the core |
Crate engine vs long block vs short block
- Short block: block, crankshaft, rods and pistons; you add heads and the rest.
- Long block: adds the cylinder heads and valvetrain; you transfer intake, accessories and sensors.
- Crate or complete engine: often adds more of the intake, timing cover and accessories, depending on the package.
See short block vs long block for the details.
Are crate engines worth it?
Usually yes when downtime matters, when the old engine has major damage such as a cracked block or spun bearings, or when you want a predictable result for a swap. A rebuild can make more sense for a rare engine, a numbers-matching restoration, or when the damage turns out to be minor.
Pros and cons of crate engines
- Pros: faster installation, consistent build quality, known specifications, often tested before shipping.
- Cons: higher up-front cost, possible core charges, parts to transfer, and emissions or registration rules for swaps in some states.
Planning a crate engine install
Confirm the engine fits your vehicle’s mounts, transmission, wiring and engine computer before ordering, and list the parts you will move from the old engine. Budget for fluids, filters, gaskets and any accessories the package does not include.
Crate engine vs remanufactured engine
A crate engine can itself be new or remanufactured; the label describes the package more than the build. Ask whether the block and major parts are new or reprocessed; see rebuilt vs remanufactured.
Engines we carry
We list complete engines, long blocks and short blocks by engine code, including Chevy 5.3 and 6.0, 5.7 Hemi, 5.4 Triton, Cummins 5.9 and 6.7, and built Subaru EJ25 and FA20/FA24 blocks; start at our engines page, see LS engines for swaps, and engine replacement cost for budgeting.
More guides: engine replacement checklist · how long remanufactured engines last · used vs rebuilt engines.
Shipping is a flat $80.00 per order to US addresses, with 15-day free returns. Questions? Ask a parts specialist.