An engine rebuild in Melbourne usually lands between $3,000 and $7,000, and a full replacement can run past $11,000 on the wrong car. The spread is enormous because "engine rebuild" covers everything from a head job on a four-cylinder Corolla to stripping a twin-turbo V6 down to the block.
Nobody can quote that over the phone. What an honest workshop can do is tell you which bracket your car sits in, what it would take to find out for certain, and whether the number is worth spending on the car you have. This guide covers all three.
Engine rebuild prices in Melbourne, 2026
These are estimates only, a guide to help you budget rather than a quote. What your engine actually costs depends on the make, how far the damage has spread, whether the block and head can be machined or need replacing, and what we find once it’s apart. Every engine job here starts with an inspection and a written quote before anything is dismantled.
| Job | Typical price |
|---|---|
| Compression and leak-down test | $150 – $350 |
| Cylinder head recondition (off the car) | $800 – $1,800 |
| Head gasket replacement, four-cylinder | $1,500 – $3,000 |
| Head gasket replacement, V6 or European | $2,500 – $5,000 |
| Partial rebuild, rings and bearings | $2,500 – $4,500 |
| Full rebuild, block and head | $4,000 – $8,000 |
| Reconditioned exchange engine, fitted | $5,000 – $11,000 |
A four-cylinder Japanese or Korean engine sits at the bottom of every row. Parts are everywhere, the work is well understood, and machining is straightforward. A European V6, anything with a timing chain buried behind the gearbox, or a diesel with a turbo and DPF to reinstate sits at the top.
Labour is most of the bill. A full rebuild is 15 to 25 hours of work before parts, and Melbourne metro workshops run between $120 and $200 an hour. That’s why the same rebuild costs noticeably less on a car where the engine lifts straight out.
The symptoms, and what they usually mean
Blue smoke from the exhaust, worse on start-up. Oil getting past the valve stem seals or the rings. Seals alone can be a head job. Rings mean the block comes apart.
White smoke that smells sweet, and coolant disappearing. Head gasket, cracked head, or a cracked block in the bad cases. The pressure test tells you which within an hour, and the gap between those three answers is thousands of dollars.
Knocking that speeds up with the engine, not the wheels. Bottom-end bearing wear. If the knock is there when the engine is warm and under load, stop driving it. A bearing knock caught early is a rebuild. Driven on, it turns into a new engine.
Burning oil with no visible leak. Rings or valve guides. Worth measuring properly, because "a litre every 1,000 km" is normal on some engines and terminal on others.
Overheating that keeps coming back after a thermostat and a flush. Often a head gasket starting to let go, pushing combustion gas into the cooling system. A cheap chemical test at the radiator finds it.
Two of those, the sweet white smoke and the bottom-end knock, are the ones where every day of driving costs you money. The rest can wait a week for a proper diagnosis.
What moves the price up or down
Whether the block survives. This is the big fork in the road. If the bores can be honed and the crank ground, you’re rebuilding. If the block is cracked or a bore is scored past the machining limit, you’re buying an engine, and the price roughly doubles.
Machining time. Heads get pressure tested, skimmed and reassembled. Blocks get bored, honed and decked. That work goes out to an engine reconditioner and it’s not quick, which is part of why a rebuild takes a fortnight rather than a weekend.
Genuine versus aftermarket parts. On a rebuild this matters more than most jobs, because you’re buying dozens of parts at once. Gasket sets, bearings, pistons and rings all come in genuine and quality aftermarket versions, and on common engines the aftermarket kits are excellent. On some European engines we’ll only fit genuine. We price both where both make sense and tell you which we would put in our own car.
What else has to come off. On a transverse V6 the rear bank is against the firewall. On some diesels the body has to be separated from the subframe. Access is invisible on a quote sheet and enormous in the labour line.
Turbos, injectors and the DPF. If the engine failed in a way that put debris through the oil system, the turbo is suspect too. Reusing a contaminated turbo is how a rebuilt engine fails twice.
Is it worth rebuilding at all?
Sometimes the honest answer is no, and you should hear that before you spend anything.
A rough rule: if the rebuild costs more than the car is worth with a good engine in it, stop. A 2008 hatchback worth $4,000 doesn’t deserve a $6,000 rebuild. A 2016 diesel ute worth $32,000 absolutely does, and a reconditioned engine in it’s the cheapest way to own a good ute for another five years.
The middle cases are where it gets interesting. A car you know the history of, with a good body and a solid transmission, is often worth rebuilding when the same money buys you somebody else’s unknown problem. We’ll give you the number and our honest view of the car, including "this one isn’t worth it" when that’s the truth.
If the engine is going to come out anyway, it’s also the cheapest time in the car’s life to deal with a tired clutch or a leaking rear main seal. Worth asking about the gearbox while the engine is out.
One more time, because it matters: the table above is for budgeting, not quoting. Your number depends on your exact engine, what the strip-down finds, and the genuine-versus-aftermarket call.
Call 03 9763 0100 or book through our engine rebuild page. We’re at 5/1644 Ferntree Gully Road, Knoxfield, and we’re open Saturdays.