LS Engine Rebuilding, Reconditioning and Machining in Sydney

Engine Rebuilding

In-house LS1, LS2, L76, L77, L98, LS3 and LSA engine rebuilding, CNC machining, torque-plate honing, blueprint measurement and performance assembly at our Penrith workshop.

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Precision Engine Reconditioning

Our team dismantles, inspects, machines and rebuilds LS engines in-house.

In-house Machining

CNC boring, hotwash, sleeving, surfacing and torque-plate honing at our Penrith workshop.

Blueprint Measurement

Bore size, bearing clearances, cylinder finish and valvetrain geometry checked for the intended engine use.

LS engine rebuilding and machining in Penrith

Oztrack rebuilds LS1, LS2, L76, L77, L98, LS3 and LSA engines in-house. We inspect, machine, measure and assemble each engine to suit its intended street, performance, circuit or boosted use.

LS1 and LS2 5.7L and 6.0L engines

L76, L77 and L98 6.0L Commodore engines

LS3 6.2L Commodore and HSV engines

LSA Supercharged HSV engines

How an Oztrack LS engine rebuild is completed

We do not simply replace damaged parts and assemble the engine. The block and internal parts are inspected and measured before the final combination is selected.

Inspection and dismantling

The engine is stripped and checked for bearing wear, cylinder damage, failed lifters, ring wear and other faults.

Cleaning and measurement

Components are cleaned before the block, crankshaft, bores, decks and bearing clearances are measured.

In-house machining

Required work may include CNC boring, torque-plate honing, deck surfacing, sleeving and cylinder-head machining.

Blueprint assembly

Bearing clearances, piston clearances, ring gaps and valvetrain geometry are matched to the engine's intended use.

Engine installation

For complete vehicle jobs, the rebuilt engine is installed with the required supporting parts, fluids and checks.

Initial start and checks

Oil pressure, temperatures, noises, leaks and ECU data are checked before the engine is placed under significant load.

Dyno testing

Suitable vehicles can be tested on the Mainline ProHub to verify operation under controlled engine load.

Final calibration

Fuel, ignition, idle, airflow and torque controls are calibrated to suit the rebuilt engine and its modifications.

Why rebuild your LS engine at Oztrack?

The quality of an engine rebuild depends on accurate machining, measurement, parts selection and final calibration.

In-house engine machining

Oztrack can perform CNC boring, CNC surfacing, torque-plate honing and other machining work without sending the main block work to a general outside workshop.

Measured cylinder finish

We use bore-measuring equipment and a profilometer to check bore size and surface finish for the intended piston ring and engine use.

Street and performance experience

We rebuild standard street engines, cammed combinations, supercharged engines, strokers and circuit-focused LS engines.

Engine and tuning under one roof

Mechanical assembly and ECU calibration can be considered as one complete combination rather than two unrelated jobs.

Choose the right LS engine rebuild option

Oztrack can rebuild the engine as part of a complete vehicle job or supply a rebuilt engine for customers who deliver or freight an engine.

Engine supplied separately

LS Engine Reconditioning Without the Car

Suitable for customers supplying a removed engine or arranging freight to Oztrack.

View this rebuild option → Rebuild and performance upgrade

LS Rebuild With Cam Upgrade

Rebuild the engine and match it with a camshaft, valvetrain and calibration suited to the vehicle.

View rebuild and cam options → Workshop machining

LS Engine Machining Services

Learn about Oztrack's block machining, torque-plate honing, surfacing, sleeving and measuring equipment.

View machining services →

Does your LS engine need rebuilding?

Contact Oztrack with the engine type, vehicle, kilometres, symptoms and intended power level. We can then recommend the appropriate inspection and rebuild path.

Request Rebuild Information Call (02) 9119 3895

Why Choose Engine Rebuilding?

Engines are intricate systems with many moving parts and wear, and tear are inevitable over time. If you notice less power, lower fuel efficiency, or strange noises from your engine, it may be time for an engine rebuild. Our professional engine reconditioning services encompass the full range of LS engines. For example, LS engines often show significant bearing wear after 200,000 km. Few of them reach 300,000 km without needing a rebuild. If you have an LSA, LS1, LS2, LS3, L76, L77 or L98, we can usually use or save your original engine block. Then, build up an engine with correct measurements for its pistons and bearings and torque plate hone the cylinders. Stock crate engines are often assembled very tight and can have cylinder sleeve shifts in many cases. This is especially common in the LS3 crate engines and LSA crate engines.

The Engine Rebuilding Process

Our engine rebuilding process starts with thoroughly inspecting and disassembling your engine. Our skilled technicians scrutinize each component, identifying worn-out or damaged parts. We then offer precise engine machining services. These include CNC boring, CNC surfacing, sleeving, and 6 Diamond Head Torque Plate Honing. This ensures that every part meets strict specifications. We have the latest Blueprinting Technology Tooling to verify all of our work. Measuring cylinders to one-tenth of a thou. We also use a profilometer to measure the quality of honing. This helps us ensure it meets the application’s needs for street use, circuit racing, or boosted engines.

Complete engine rebuild

LS Engine Rebuilding

Suitable for LS1, LS2, L76, L77, L98, LS3 and LSA engines.

Typical work Inspection, machining, blueprint measurement, assembly and final testing.

Goal A dependable engine built for its intended street, performance or boosted application.

Comec CNC machining an LS engine block at Oztrack

In-house machining

Precision Engine Machining

Workshop equipment CNC boring, deck machining, torque-plate honing and precision cylinder preparation.

Measured accurately Bore size, surface finish and bearing clearances checked before assembly.

Result Accurate machining that provides the correct foundation for engine life and reliable performance.

Performance pistons and engine fasteners for an LS rebuild

Matched components

Engine Components Selected to Suit

Parts selected Pistons, bearings, rings, fasteners, camshaft and valvetrain selected for the application.

Matched combination Compression ratio, clearances and component selection tailored to the engine build.

Designed for Street engines, performance combinations and supercharged applications.

Every LS engine build is different

Every engine is inspected before machining begins. We measure the block, crankshaft, bores and cylinder heads before recommending the rebuild specification. Parts, machining and assembly are matched to the engine's intended use, whether it is a street rebuild, cammed performance engine or high-power supercharged combination.

View Engine Reconditioning View Rebuild and Cam Packages

Trading at this location since 2012

Rated 5 out of 5

Rated 4.9 stars – 200+ Reviews

"LS2 engine rebuild was outstanding. Price and timeline remained firm. After sales support fantastic. All in all an awesome experience with Steve and his team. Highly recommended"

"Steve and Jono always do their absolute best to ensure the job is always completed to the highest standard. I have been a returning customer now for many years and every time I get my Ute back from Oztrack I am left with a smile from ear to ear with the performance, sound and work that has been done. Highly recommend!"

"Steve did a tune on my VY SS and it's been running it's best ever since. Promt delivery and good customer service.. I am very happy with Oztrack and would recommend them to anyone looking to tune their vehicle."

"Oztrack are awesome! They have been looking at my VE SS race car over the last year. Engine build this year is amazing and produced great results. Highly recommend Steve and Johnathon to do any work required on your car."

"Steve and Jono do their absolute best to ensure the job is always completed to the highest standard. I have had multiple cars worked on by Oztrack - Highly recommend!"

"Unreal service could not be happier with my Caprice after a cam upgrade the guys at Oztrack are awesome at what they do will definitely be using them again"

"Steve has been a great help tune in the car and also small tune up dates when I have changed thing on the car I highly recommend Oztrack"

"the service you get from Steve at Oztrack is out standing. he is always there to help and will do everything he can to get the tune you want. couldn't recommend a better company than oztrack"