Unit 15D Askew Farm Lane, Grays RM17 5XR Mon–Fri 8am–6pm · Sat 9am–1pm
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Engine Rebuilds

Sometimes the right answer is not a different engine — it is your engine, rebuilt properly. We strip it, machine it, and put it back together with the known weak points addressed rather than repeated.

A stripped cylinder head with camshafts and valve train exposed during an engine rebuild at Delta Engines
This is what a rebuild actually looks like: the head off, the camshafts out, and every clearance measured before anything goes back together.

When a rebuild is the right call

  • The vehicle is rare or a classic — a numbers-matching Defender, for example, where originality carries real value.
  • Your block is still good, because the fault was caught early rather than driven until it destroyed itself.
  • You want the engine you know, rather than a donor unit with someone else’s history.

If a rebuild is not the economic answer, we will say so. A knocking engine that has been driven hard after the noise started is often past saving — and we would rather tell you that than take your money.

What a rebuild involves

  1. Strip and inspect. The engine comes apart completely and every component is measured, not eyeballed.
  2. Machining. Bores measured and honed; crankshaft inspected, reground or replaced; heads pressure-tested and skimmed as needed.
  3. New wear components. Bearings, rings, gaskets, seals, timing chain kit, oil pump.
  4. Weak points upgraded. On a 3.0 TDV6 that means an uprated bearing specification and a new oil pump as standard — the component that caused the failure is not simply replaced like-for-like.
  5. Reassembly and testing. Pressure tested and compression tested, with the results supplied in writing.
Why “beyond factory spec” is not marketing. Fitting the same part that failed, and calling the engine rebuilt, is how an engine comes back to you a second time. We build these engines every week — we know where they break.

Timescales

A bespoke rebuild typically takes 2–3 weeks, because machining cannot be rushed. If you need the vehicle back faster, a reconditioned exchange unit is usually the quicker route — see the honest comparison.

Price

A full rebuild of your own engine typically runs £2,000–£5,000, fitted, depending on the engine and what the machining reveals. VAT is included in every price.

Every rebuild carries our 12-month / 12,000-mile parts-and-labour warranty.

Common questions

Is a rebuild cheaper than a reconditioned engine?

Not always. A rebuild is bespoke work on your engine, so it can cost similar or more — what it buys you is your original engine, kept.

My engine seized. Can it still be rebuilt?

Possibly, but a seizure often damages the block beyond economic repair. We will strip and assess it and tell you honestly what we find.

Do I get the same warranty as a reconditioned engine?

Yes — 12 months or 12,000 miles, parts and labour, in writing, with your test results.

Get Your Engine Quote in Two Hours

A fixed written price to supply and fit it — from the people who'll actually build your engine. VAT included.

Get My Quote →

Or call 02033 180532 · Mon–Fri 8am–6pm · Sat 9am–1pm