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Complete Engines

When your engine suffers a catastrophic failure, such as a cracked block or severe internal wear, a complete replacement is often the most practical and cost-effective solution. This approach bypasses the high labor costs and extended downtime associated with extensive repairs or complex overhauls.

Instead of a costly rebuild, fitting a reconditioned engine quickly restores your vehicle's functionality and offers substantial benefits:

  • substantial savings compared to a costly rebuild,

  • maintenance of your car's resale value,

  • a meticulous reconditioning process, unlike standard engine rebuilds,

  • restoration of original factory clearances through precision engineering,

  • enhanced reliability and longevity.

Therefore, a full engine replacement is an excellent choice for major issues or a fundamentally defective power unit.

What Are Complete Engines?

A complete engine replacement, often referred to as an 'engine assembly' or 'crate engine', is a fully assembled power unit designed for immediate installation into your vehicle.

This comprehensive unit includes all essential internal components, such as the engine block, crankshaft, pistons, and camshafts. Crucially, it also comes with vital external accessories, including:

Opting for this 'plug-and-play' solution ensures an efficient restoration, eliminating concerns about missing or incompatible parts. You'll gain enhanced reliability and a longer-lasting performance, making it a truly robust choice.

What Types of Complete Engines Are Available?

We offer diverse engine types to suit various needs and budgets: 

  • new (factory-fresh OEM), 

  • used (with verified history and lower mileage), 

  • reconditioned (undergoing a thorough rebuild), 

  • remanufactured (completely rebuilt to surpass original factory standards, often adhering to BS AU257:2002 certifications).

Engines also vary by configuration. Fuel types include petrol, diesel, hybrid, or LPG. Our cylinder layouts include:

  • 4-cylinder,

  • 6-cylinder,

  • 8-cylinder,

  • V8,

  • inline 6.

We cater to specific applications like classic car restorations, race builds, or JDM projects. Our selection features renowned engines such as the Ford EcoBoost, Toyota JZ, GM LS-Series V8s, and VW TDI units.

What Is a Short Block?

Among engine configurations, a 'short block' is a fundamental assembly. It comprises the engine block itself, along with the crankshaft, connecting rods, and pistons. These crucial parts form the engine's vital rotating foundation.

This setup intentionally excludes cylinder heads, camshafts, and other external components such as the oil pan or manifolds. A short block is an ideal repair option, particularly when only the lower section of your engine is damaged, allowing you to readily reuse your old cylinder heads and other ancillary parts.

What Is a Long Block?

A long block is a comprehensive engine assembly, building directly upon a short block. This unit typically arrives with pre-installed cylinder heads, camshafts, and fully assembled valvetrain components.

However, it's crucial to distinguish it from a 'fully dressed engine'. Many external ancillarie are absent; for example, you won't find:

This 'bare engine' is a popular choice for replacements, offering a robust foundation. You'll simply need to transfer ancillary components from your old engine unit.

What Is a Fully Dressed Engine?

A fully dressed engine is the most comprehensive package available. Often referred to as 'turn-key' or a 'complete crate engine', this unit arrives almost ready for action. Unlike a standard long block, it comes with all essential external components already attached.

This means crucial elements are pre-installed, including:

Furthermore, you'll find the alternator, starter, and even the AC compressor ready to go. This comprehensive setup is designed for immediate fitting, significantly cutting down assembly time and simplifying the entire installation process.

What are the Benefits of Crate Engines

Crate engines offer distinct advantages, making them an excellent choice for both performance upgrades and engine swaps. Their installation is remarkably straightforward.

Each unit undergoes rigorous dyno-testing, which precisely verifying its power output and torque, assuring you of:

  • guaranteed, proven performance,

  • superb reliability,

  • modern power solutions for even the most demanding projects,

  • robust internal components within a lightweight construction,

  • outstanding value and consistently dependable power.

How Do Complete Engines Reduce Installation Time and Cost?

Opting for a complete engine dramatically simplifies installation. These fully integrated, pre-tested units offer numerous advantages, including:

  • slashing fitting time and expenses,

  • removing the hassle of sourcing individual components,

  • bypassing tedious inspections,

  • eliminating the need for separate assembly,

  • significantly reducing the risk of compatibility issues and unexpected part requirements.

A skilled mechanic can typically install one of these in just 10 to 15 hours, a massive saving compared to a full engine rebuild. This directly translates into significantly lower labour costs and much better control over overall project expenses.

How to Choose the Right Complete Engine?

Selecting the correct engine is crucial for a seamless replacement, ultimately saving valuable time and money. A well-thought-out decision significantly enhances these benefits.

Begin by confirming compatibility, meticulously checking the engine code and VIN to avoid any fitting complications. Your driving habits are very important; while an OEM engine is ideal for everyday use, consider a performance unit for an upgrade.

Next, evaluate your budget, exploring options like new, used, or rebuilt engines. If opting for a used unit, thoroughly inspect its mileage and carefully verify the odometer readings.

For engine swaps, additional scrutiny is required to ensure a perfect match for your vehicle and performance aspirations. Key checks include:

  • verifying its fit with your gearbox,

  • inspecting engine mounts,

  • checking wiring,

  • examining cooling hoses,

  • assessing fuel lines,

  • ensuring the appropriate control pack and EFI system,

  • conducting thorough research and consulting a specialist.

What Performance Metrics Should You Consider?

When assessing an engine, several crucial performance indicators are paramount to understanding its capabilities and potential.

  • horsepower (HP) - thisreveals its raw power output,

  • torque 0 essential for pulling strength and rapid acceleration,

  • boost pressure - a key metric for forced induction systems,

  • engine's core design - such as cylinder arrangement (e.g., V8 or inline-six),

  • fuel - type of fuel utilised.

Always favour dyno-tested engines; this independently confirms their advertised capabilities, ensuring you receive the promised performance. Furthermore, consider potential enhancements such as ECU tuning, air intake modifications, or timing adjustments.ll of which can boost power, provided they maintain emissions compliance.

Purchasing and Ownership Considerations for Complete Engines

When purchasing a new engine, you should consider not only the technical specifications but also the practical and financial aspects. Always gather all necessary paperwork, such as receipts and warranty documents. These are essential  for your records and can significantly enhance your vehicle's resale value.

If you choose an exchange system, be aware that the state of your old engine will directly impacts its value. Issues such as  extensive wear, leaks, or electrical problems will reduce the credit you receive. When evaluating a replacement unit, diligently check for signs of poor performance, overheating, excessive noise, or rough idling, as these signal potential issues.

Where to Buy Complete Engines?

Buying a complete engine requires careful consideration, with a trustworthy source being paramount. You'll find various types available, from brand-new, original units to dependable used options.

Beyond local outlets, online retailers and specialist suppliers offer extensive inventories. Many provide efficient pallet services for safe UK-wide delivery.

For budget-conscious choices, explore car breakers and salvage yards. For high-performance or racing engines, consult specialist builders who often provide bespoke solutions.

Always scrutinise the seller, prioritising transparent practices and robust warranties for a secure purchase. Some providers also offer conveniences like national vehicle recovery, simplifying collection.

Find your perfect engine and get back on the road with Ecooparts!

What Is the Cost of Complete Engines?

The price of an engine varies significantly based on its type and condition. Here’s a general guide to expected costs:

  • a pre-owned unit might cost anywhere from £500 to £2,000,

  • brand new petrol engines typically range between £2,000 and £4,000,

  • diesel versions are generally more expensive, costing £2,000 to £6,000,

  • hybrid powertrains command a premium, with prices often between £5,000 and £10,000,

  • a complete engine replacement, including fitting, can fall within £1,500 to £10,000.

Many online retailers offer competitive pricing, often matching or beating main dealer rates, ensuring excellent value.

What Factors Determine Engine Price and Sale Cost?

Engine prices are influenced by a variety of factors beyond the basic guide. Several elements significantly affect an engine's value and overall expenditure, including:

  • a unit's complexity,

  • its physical size,

  • the brand reputation,

  • whether it's a high-performance or specialist engine,

  • the 'dress level' (e.g., bare engine vs. fully assembled),

  • the condition of your old engine if opting for a core exchange system,

  • and the requirement for specific, high-quality components.

What Warranty and Support Should You Expect?

When investing in a complete engine, a robust warranty is key for peace of mind. Most reliable suppliers offer a parts-only guarantee, typically spanning three to six months, applicable for new, used, and reconditioned units. Some also provide enhanced protection, potentially covering labour costs or a complimentary standard warranty.

Beyond the guarantee, comprehensive support is invaluable. Look for suppliers who offer:

  • detailed pre-installation instructions,

  • model-specific instructions,

  • a price match guarantee,

  • clear return procedures,

  • rigorous hot-run testing before dispatch,

  • pressure testing before dispatch.

At Ecooparts, we don’t just sell parts - we provide a complete solution. Protect your investment and drive with confidence.