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      Cosworth Engine Upgrade Quote

      Select Engine Type

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      Type 1 EJ20 Standard Stroke Cosworth Street tuff Engine includes;

      • New Subaru EJ20 STI Engine case
      • New Subaru EJ20 STI Forged Crankshaft
      • New STi Forged Connecting Rods
      • Cosworth Forged Pistons and rings
      • Cosworth Coated, Tri-metal bearings
      • Cosworth Head Gaskets
      • New Subaru Oil pump
      • New Subaru Engine Oil pick up
      • New Subaru Engine Oil Sump
      • Balanced to within .5 gram
      Select

      Type 2 EJ25 Standard Stroke Cosworth Street tuff Engine includes;

      • New Subaru EJ25 STI Engine case
      • New Subaru EJ25 STI Forged Crankshaft
      • New STi Forged Connecting Rods
      • Cosworth Forged Pistons and rings
      • Cosworth Coated, Tri-metal bearings
      • Cosworth Head Gaskets
      • New Subaru Oil pump
      • New Subaru Engine Oil pick up
      • New Subaru Engine Oil Sump
      • Balanced to within .5 gram
      Select

      Type 3 EJ20 2.1L Stroker Cosworth Engines includes;

      • New Subaru EJ20 STI Engine case
      • New Subaru STI Forged Crankshaft
      • New Forged Connecting Rods
      • Cosworth Forged Pistons and rings
      • Cosworth Coated, Tri-metal bearings
      • New Subaru Oil pump
      • New Subaru Engine Oil pick up
      • New Subaru Engine Oil Sump
      • Balanced to within .5 gram
      Select

      Type 4 EJ25 2.6L Stroker Cosworth Engines includes;

      • New Subaru EJ25 STI Engine case
      • Cosworth 81mm Billet Crankshaft
      • Cosworth Forged Connecting Rods
      • Cosworth Forged Pistons and rings
      • Cosworth Coated, Tri-metal bearings
      • Cosworth Head Gaskets
      • Cosworth Head Stud Kit
      • Cosworth Stainless Valves
      • Cosworth High Rev valve Springs
      • Cosworth Valve Retainers
      • Cosworth Valve Locks
      • Cosworth Oil pump
      • New Subaru Engine Oil pick up
      • New Subaru Engine Oil Sump
      • Balanced to within .5 gram

      Performance Addon Parts

      Add

      Kevlar Timing Belt


      Cosworth Kevlar High Performance Timing belts are 300% stronger than original equipment timing belts

       

      Add

      Billet Timing Belt Guide

      The Cosworth Billet timing belt guide replaces the original sheet metal timing belt guide that can flex from belt deflection when subjected to extreme rpms causing the timing belt to skip one or more teeth on the crankshaft sprocket.

       

       

      Add

      Head Stud Kit

      Essential for high performance engine builds, heavy duty head studs reduce cylinder head movement in high boost or high compression engines optimising cylinder head to block sealing. Cosworth Ultra High Performance Head Studs are manufactured from H11 tool steel with 240,000+psi tensile strength and come complete with nuts and washers. They are manufactured with hex broach ends for ease of installation

       

      Add

      Oil Control Baffle

      The Cosworth Subaru Oil Pan Baffle has been engineered with diverters to control oil returning from the cylinder heads to the pan directing it away from the crankshaft. Additionally, one-way valves prevent oil from reentering the upper crankcase chamber thereby limiting blow by and preventing oil starvation during hard driving.

       

      Add

      Engine Oil Pump

      High performance engines dissipate a substantial amount of heat through the oil system. Maintaining oil pressure and control along with an increase in actual volume will help assist this process and stabilize oil temperatures. Cosworth Engine oil pumps are high flowed and pressure blueprinted. 

      Add

      Billet Crankshaft 75mm (EJ20)

      Increased engine performance often means increased engine speed and load. Original factory crankshafts may not be able to withstand the added stress, resulting in catastrophic engine failure. Additionally, many OE crankshafts rod journals are lubricated from only one main oil feed. Cosworth billet crankshafts featurefull-flowoiling whereby each rod journal is lubricated from two main sources. This provides superior lubrication during sustained high rpm use preventing rod bearing failure. Cosworth Subaru crankshafts are manufactured entirely from high grade steel in a light-weight, high strength design with a uniqueIsotropic Super Finish (ISF®).

      Add

      Billet Crankshaft 79mm (EJ25)

      Increased engine performance often means increased engine speed and load. Original factory crankshafts may not be able to withstand the added stress, resulting in catastrophic engine failure. Additionally, many OE crankshafts’ rod journals are lubricated from only one main oil feed. Cosworth billet crankshafts are full-flowing whereby each rod journal is lubricated from two main sources. This provides superior lubrication during sustained high rpm use preventing rod bearing failure. Cosworth Subaru crankshafts are manufactured entirely from high grade steel in a light-weight, high strength design with a unique Isotropic Super Finish (ISF®).

      Add

      Billet Crankshaft 81mm (EJ25 Stroker)

      Increased engine performance often means increased engine speed and load. Original factory crankshafts may not be able to withstand the added stress, resulting in catastrophic engine failure. Additionally, many OE crankshafts rod journals are lubricated from only one main oil feed. Cosworth billet crankshafts are full-flowing whereby each rod journal is lubricated from two main sources. This provides superior lubrication during sustained high rpm use preventing rod bearing failure. Cosworth Subaru crankshafts are manufactured entirely from high grade steel in a light-weight, high strength design with a unique Isotropic Super Finish (ISF®).

      Add

      Forged Connecting Rods

      To ensure engine reliability in all conditions, original connecting rods should be replaced with heavy duty specification parts. Cosworth Forged Connecting Rods are manufactured from high strength 4340 (EN24) steel and machined to exacting tolerances.

       

      Add

      Big port Cylinder Heads with Camshafts (2.5lt Only)

      Each original cylinder head design has been carefully evaluated and tested to establish what improvements are required to meet target performance levels. Hours of testing and flow bench validation are used to determine the best advanced port design yielding maximum usable power and response. However, there is more to cylinder head design than just maximum flow. It is critical that port velocity is maintained to ensure drivability, and that valve train components are matched to guarantee reliable performance. Once all of these factors have been tested and validated, the final port contour is digitized. Using the digitized program, we then reshape both intake and exhaust ports using a 5 axis CNC mill producing an accurate and consistent port shape every time. In addition to re-shaping and enlarging the intake and exhaust ports, most Big Valve Cylinder heads feature a re-shaped combustion chamber to un-shroud the valves, increasing air flow and performance. After machining, each cylinder head receives a multi-angle high performance valve job on our precision Newen® CNC valve seat cutter. Then each cylinder head is ultrasonically cleaned, serialized and finally hand assembled with select high performance valve train components, ready to install on your engine.

      Add

      Hi Lift Camshafts (EJ20)

      Cosworth camshaft designs are the most efficient in providing maximum usable power across the widest power band.

      Each cam is ground from a new blank and finished using the same procedures we use in our extreme level race engines. Cosworth camshafts are profiled to increase boost response thereby increasing engine torque and power.

      Add

      Hi Lift Camshafts (EJ25)

      Each cam is ground from a new blank and finished using the same procedures we use in our extreme level race engines. Cosworth camshafts are profiled to increase boost response thereby increasing engine torque and power.

       

       

      Add

      High Rev Dual Valve Springs (EJ25)

      Cosworth Ultra Race Valve Spring Kits are engineered for use in situations that require valve control in extreme conditions. Each kit consists of dual valve springs with matched lightweight titanium retainers, keepers, and hardened steel spring seats. Cosworth Ultra Race Valve Springs are wound from the highest quality chrome silicone steel with chamfered ends and are heat treated and stress relieved for long term reliability. Ultra Race Valve Spring kits are compatible with Cosworth high performance valves.

      Add

      High Rev Valve Spring (EJ20)

      Cosworth High RPM Valve Springs are the result of countless hours of engineering, testing and validation ensuring the best possible spring for high performance applications. Cosworth High RPM Valve Springs are wound from the world's finest Japanese Kobe steel and feature dual chamfered ends to reduce wear on seats and retainers. Each spring has been engineered with increased seat pressure along with higher lift capability for optimum performance potential and improved valve control. Single spring design allows easy installation with no machining required and is perfect for typical high performance use.

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      Intake and Exhaust Valves

      Large diameter valves are essential for improved air flow. Cosworth high performance intake valves are produced from high quality stainless steel for maximum durability. Exhaust valves are machined from Inconel for high temperature (2400° F) reliability. Each valve features a swirl polished back for improved air flow and dished face for additional weight reduction. Some Cosworth High Performance Valves are only compatible with Cosworth Ultra Race Valve Spring Kits.

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      Intake Manifold

      The Cosworth Subaru High Volume Inlet Manifold is cast from aluminium featuring large tapered runners with radiused inlets for improved air flow. Plenum volume has been substantially increased and tuned for power. Engineered for easy installation, this manifold is the key to making big power. The Cosworth EJ257 plenum is designed for use with the 2004-2009 STI engines equipped with electronic throttle control. The plenum is not designed for use with any cable-actuated throttle body EJ20/25 applications. This plenum is designed to replace the factory Subaru plenum in vehicles equipped with an aftermarket front-mounted intercooler (FMIC) kit. Throttle body position remains stock, ensuring fitment with any brand FMIC kit designed for the stock throttle body and intake manifold.

      Add

      Thermal Intake Manifold Gaskets

      The Cosworth Thermal Guard Composite Intake Gasket is designed to reduce inlet air temperature by isolating the intake manifold from the heat generated by the engine's cylinder head. Reducing the temperature of the inlet manifold also reduces the temperature of the intake air charge. The density of cooler air is greater than that of warm air. A denser intake air charge contains more oxygen thereby producing in increased power and torque.

      Add

      Dry Sump Kit

      The Cosworth Dry Sump Setup Kit for the Subaru EJ series engine is a must for race and performance applications. Dry sump oiling systems offer an unparalleled level of safety and reliability compared to factory Wet Sump systems. Complete crankcase oil scavenging reduces excessive and residual oil that can cause blow-by and power loss. A dry sump also offers more consistent oil pressure to the engine, improved scavenging, and increased ring seal due to greater pan vacuum. The Cosworth Dry Sump System for the Subaru EJ20/EJ25 replaces the original oil sump with a machined from solid, low profile alloy pan with twin scavenge ports, internal baffling and o-ring sealing. A two stage scavenge pump driven by a HTD belt, mounted to a heavy duty bracket evacuates the oil from the engine.

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      Engine Warranty Terms & Conditions

      All Drive Subaroo Pty Ltd Rebuilt engine and new or used parts warranty terms and conditions.

      1. Warranty Information:
        1. Repairs : All repairs made to Subaru engines by All Drive Subaroo Pty Ltd (ADS), providing that parts and labour are both supplied by ADS, are covered by a 6 months or 15,000km (whichever occurs first) parts and labour warranty.
        2. Level 1: All Subaru rebuilt engines (Level 1) supplied and installed by ADS are covered by 12 months or 25,000km (whichever occurs first) parts and labour warranty. Level 1 engines are explicitly assembled to manufacturer’s performance specifications; any modifications (tuning alterations, aftermarket platforms, aftermarket intakes, exhaust systems etc.) which may alter power output or driveability, will void the warranty in its entirety.
        3. Level 2: All Subaru reconditioned (level 2) engines supplied and installed by ADS are covered by our parts and labour warranty for 18 months (uncapped kilometres). Level 2 engines are explicitly assembled to manufacturer’s performance specifications; any modifications (tuning alterations, aftermarket platforms, aftermarket intakes, exhaust systems etc.) which may alter power output or driveability, will void the warranty in its entirety.
        4. Level 3: All Subaru remanufactured (level 3) engines supplied and installed by ADS are covered by a 24 month and unlimited mileage parts and labour warranty.
          Level 3 engines are explicitly assembled to manufacturer’s performance specifications; any modifications (tuning alterations, aftermarket platforms, aftermarket intakes, exhaust systems etc.) which may alter power output or driveability, will void the warranty in its entirety.
        5. Performance Engines: Engines reconditioned/remanufactured by All Drive Subaroo that contain non-OEM parts such as forged pistons, modified engine oil pans, oil pumps etc. with clearances set according to non – OEM instructions that are outside Subaru manufacturers specifications are categorized as Motorsport engines. Motorsport engines carry 6 months or 25,000km warranty (whichever occurs first) when installed by an approved 3rd party. All Motorsport engines that are installed and tuned by ADS are covered by a 12 month/25,000km (whichever occurs first) parts and labour warranty.
        6. Warranty period commences on day of delivery, or day of handover if the engine is installed by us or one of our certified installers.
        7. ADS Warranty does not cover consequential failure; any parts such as engine accessories unrelated to the engine build that are damaged or rendered unusable in the unlikely event of an engine failure are not covered.
        8. ADS Warranty terms exclude any engine removal or shipping costs incurred to return the product to our facility.
        9. ADS Warranty is only offered if the engine is professionally installed, with receipts provided.
        10. Standard Warranty is non-transferrable and only offered to the original purchaser of the engine.
        11. Any and all parts supplied and installed by ADS in the engine assembly are covered under our warranty terms or the component manufacturer’s warranty terms. No warranty is offered for any components supplied by the client.
        12. The client agrees that costs associated with engine removal/disassembly at the ADS workshop will be their responsibility if the failure is not covered within our terms.
        13. If the vehicle is serviced outside of ADS, documentation supporting vehicle servicing intervals must be provided if a warranty claim is made. All Servicing receipts must contain the following information: customer’s name, registration details, service date, and distance travelled. Failing to provide the requested documents will void this warranty.
        14. Any warranty repairs or replacements will not extend the original warranty period unless specified by ADS management.
        15. We take pride in the rebuilt/remanufactured units that we sell and take every precaution to ensure trouble free operation. In the unlikely event of an issue, ADS may choose to send a replacement part, engine or repair the defective component.
        16. Labour reimbursements for ADS-approved warranty repairs will be determined according to a flat rate manual and only provided if the engine or failed component was installed by All Drive Subaroo. Labour rates are based on the automotive industry average for each state.
        17. Regarding our Level 1, Level 2 and Level 3 engine options; these products are all explicitly assembled to manufacturer’s performance specifications; any modifications (tuning alterations, aftermarket platforms, aftermarket intakes, exhaust systems etc.) which may alter power output or driveability, will void the warranty in its entirety.
      2. ADS Engine Warranty does NOT cover:
        1. Engine damage/failure due to improper engine installation, negligence, abuse, modification or accident.
        2. Inadequate run-in procedure.
        3. ANY engine damage/failure caused by aggressive tuning or performance modifications exceeding ADS specified engine parameters, (except in the case of ADS performance engines, or by prior agreement).
        4. Engine damage/failure resulting from inadequate maintenance. Please refer to the invoice for the approved service schedule.
        5. Engine damage/failure caused by inadequate supporting systems such as fuel delivery, wiring, and cooling systems.
        6. Damage/failure occurring from re-use of contaminated, worn, or damaged engine parts such as AVCS cam pulleys, oil pump, oil cooler etc. ADS advises that engine oil related components are assessed and replaced as required in all ADS supplied and installed engines.
        7. Any engine damage/failure without evidence of professional installation and tuning.
        8. Engine damage/failure due to abuse, including over revving, overheating, incorrect fuel mixtures or oil starvation.
        9. Engine damage/failure caused by foreign objects or substances in the engine.
        10. Vehicle towing, shipping, rental car, loss of time, inconvenience, loss of use or other economic loss unless otherwise approved by management.

      In the case of any unforeseen warranty claims not explicitly covered in our terms and conditions, ADS reserves the right to review the claim case by case with ADS or an ADS approved third party assessor.

      If you find the warranty terms and condition unacceptable, please return the component in its original, unused state for a complete refund within 7 days from the invoice date.

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