The CPR6 high-performance Alloytec V6 inlet manifold is the result of intense development and testing, as well as years of experience with cylinder head airflow research. 

Made from high-quality automotive-grade cast alloy, the CPR6 boasts far greater breathing and airflow characteristics than the factory product. Thanks to precision-machined mating surfaces, you're guaranteed proper fitment, right in place of the original manifold and using the factory bolts and hoses. 

It'll even fit under your original engine cover!

By simply providing your Alloytec V6 with more air and a cleaner intake path, you'll enjoy power gains of 11%; even on a stock engine! Through extensive dyno testing on real-world vehicles, we've seen gains of up to 60% on modified Alloytec engines.

Dyno Graph - Stock/Factory Engine

As you can see clearly from the first graph, gains between 20 and 25rwhp are delivered, even on a stock engine and without an expensive custom tune!

Dyno Graph - Modified Race Engine

Graph 2 shows the before and after results of fitting a CPR6 Alloytec V6 intake manifold to a highly modified Alloytec. As you can see, even with fully tuned engines, you'll be 45hp off the pace without the CPR6 manifold.

Fitment of the CPR6 manifold is dead easy and can be performed by DIY enthusiasts of all skill levels using simple tools in around 2 hours!

Not only will your efforts unlock more horsepower, but you'll even save money on your weekly fuel bill, under normal driving conditions. On a standard VE sedan fitted with nothing but a CPR6 intake manifold, testing showed a best of just 8.6L/100km. There's no easier, more potent performance modification you can make to your Alloytec.

If you're looking for that extra edge, when coupled with our 12mm manifold insulators, not only will you raise the tail end of the dyno graph from the CPR6 but peak torque will begin lower in the RPM range. Truly awakening the potential of the under-estimated Alloytec V6.

Contents:

• 1 X CPR6 high-performance Alloytec V6 intake manifold
• 1 X Bolt pack

Vehicle Fitment Guide

Note: Performance CPR6 intake manifold for Holden VE Alloytec can be purchased through other listing.

Now have the peace of mind for your LS V8 with our very own, designed in house, Mace Engineering LS trunnion upgrade kit. These trunnion kits replace the factory LS rocker internals that are prone to failure when exposed to extended levels of high rpm, high valve spring pressures and amplified rotation from high-lift camshafts. The OE needle bearing housings can begin to separate from the rocker arm when exposed to these conditions, gradually spitting out all the needle rollers which in turn results in a catastrophe.

Our kits are engineered to provide maximum durability and stiffness in the harshest environments whilst still being super affordable for all enthusiasts. Extra security measures have been taken with the use of extended width trunnions with snap-ring grooves instead of the bearing housings only relying on a press-fit type fixture. You can now rest assured these bearings will hold their ground and truly enjoy the exhilarating feeling your LS V8 delivers.

Contents:

• 16 X Rocker arm upgraded 8620 hardened steel trunnion
• 16 X High tensile re-useable rocker bolt
• 32 X Rocker arm reduced friction heavy duty bearing
• 32 X Rocker arm retaining ring

Vehicle Fitment Guide

Note: A shop press will be required to install the new trunnion kits. We can also provide this service for a small fee.

These V6 engines are renowned for defective timing chains. That dreaded rattle at idle or a random check engine light could be the tell-tale signs that the factory chains have stretched. Prolonging the replacement of these chains could potentially lead to severe engine damage including bent valves, damaged pistons or worst case, an engine replacement.

Here at Mace Engineering we're dedicated to providing exceptional service and quality parts, therefore we have used our sought after engineering expertise to develop a kit using components of high calibre. To ensure that our customers are receiving the most reliable timing chain kit in the market, these aftermarket kits are manufactured by Schaeffler Automotive in Germany, a renowned brand (INA) for supplying Genuine kits. These kits possess enhanced durability and strength characteristics to comfortably take the shock loading of everyday driving while the superior guides and tensioners firmly hold them in place.

These kits are backed up by an industry leading 3 year/100,000km product replacement and 1 year labor cost warranties (only applicable to kits that are inclusive of gears). Worn out gears will considerably reduce the life of the chains, therefore we only offer a 12-month/20,000km product replacement warranty to kits without idler gears.

Contents:

• 1 X Chain assembly lube
• 1 X High strength steel timing chain guide
• 1 X Premium timing cover gasket kit
• 3 X Improved production timing chain
• 3 X Heavy duty timing chain tensioner
• 5 X Precision timing chain guide

Vehicle Fitment Guide

There may be a discrepancy for vehicles built on dates that borderline the change-over of the design of the timing chain. We cannot guarantee what kit you require if this applies to your vehicle. You can confirm by removing one of the cam covers and inspecting the chains that run over the cam gears.

Caution:

Once assembled, the timing chain tensioners need to be fully released to maintain adequate tension. Simply pulling the pins is not enough. All tensioners must be pressed in by hand for the internal mechanism to fully pop out and operate effectively. Following this, the motor is to be rotated by hand one full revolution in a clockwise direction to ensure all parts have been fitted correctly. Failing to follow these steps will result in a noisy timing chain upon start up and will require the motor to be disassembled again to access the tensioners.

Notes:

• A Timing chain kit with idler and crankshaft gears can be purchased through another listing.
• The oil pump guide may not fit on some engines.
• A detailed fitting guide is available through the fitting instructions menu.

These V6 engines are renowned for defective timing chains. That dreaded rattle at idle or a random check engine light could be the tell-tale signs that the factory chains have stretched. Prolonging the replacement of these chains could potentially lead to severe engine damage including bent valves, damaged pistons or worst case, an engine replacement. 

Here at Mace Engineering we're dedicated to providing exceptional service and quality parts, therefore we have used our sought after engineering expertise to develop a kit using components of high calibre. To ensure that our customers are receiving the most reliable timing chain kit in the market, these aftermarket kits are manufactured by Schaeffler Automotive in Germany, a renowned brand (INA) for supplying Genuine kits. These kits possess enhanced durability and strength characteristics to comfortably take the shock loading of everyday driving while the superior guides and tensioners firmly hold them in place.

These kits are backed up by an industry leading 3 year/100,000km product replacement and 1 year labor cost warranties (only applicable to kits that are inclusive of gears). Worn out gears will considerably reduce the life of the chains, therefore we only offer a 12-month/20,000km product replacement warranty to kits without idler gears.

Contents:

• 1 X Chain assembly lube
• 1 X High strength steel timing chain guide
• 1 X Premium timing cover gasket kit
• 1 X Crankshaft gear
• 2 X Idler gear
• 3 X Improved production timing chain
• 3 X Heavy duty timing chain tensioner
• 5 X Precision timing chain guide

Vehicle Fitment Guide

There may be a discrepancy for vehicles built on dates that borderline the change-over of the design of the timing chain. We cannot guarantee what kit you require if this applies to your vehicle. You can confirm by removing one of the cam covers and inspecting the chains that run over the cam gears.

Caution:

Once assembled, the timing chain tensioners need to be fully released to maintain adequate tension. Simply pulling the pins is not enough. All tensioners must be pressed in by hand for the internal mechanism to fully pop out and operate effectively. Following this, the motor is to be rotated by hand one full revolution in a clockwise direction to ensure all parts have been fitted correctly. Failing to follow these steps will result in a noisy timing chain upon start up and will require the motor to be disassembled again to access the tensioners.

Notes:

• A Timing chain kit without idler and crankshaft gears can be purchased through another listing.
• The oil pump guide may not fit on some engines.
• A detailed fitting guide is available through the fitting instructions menu.

The Mahle VRS gasket kit has been manufactured to meet the standards of OEM and high-performance gaskets. All gaskets included in this kit meet or exceed the original equipment specifications providing the finest sealing products available.

This VRS gasket kit suits Holden vehicles fitted with Alloytec LY7, LCA and LE0 V6 engines. 

Contents:

• 01 X Upper inlet manifold gasket
• 01 X Lower inlet manifold gasket
• 01 X Thermostat housing gasket
• 01 X Thermostat seal
• 02 X Cylinder head gasket
• 02 X Valve cover gasket
• 02 X Chamber gasket
• 02 X Throttle body gasket
• 02 X Water outlet o-ring
• 02 X Exhaust manifold gasket
• 03 X O-ring
• 06 X Spark plug tube seal
• 24 X Valve stem seal
• 26 X Valve cover grommet

Vehicle Fitment Guide

Note: Fuel injector o-rings and cylinder head bolts are not included but can be purchased through another listing.

This high calibre bottom end gasket conversion kit is intended to service the bottom half of the engine block; essentially everything under the cylinder heads. These Mahle gaskets are synonymous with uncompromising quality and durability whilst meeting all relevant OEM specifications. You won’t find a finer sealing product.

Contents:

• 1 X Front crankshaft seal
• 1 X Rear main seal`
• 1 X Camshaft retaining plate
• 1 X Front timing cover gasket
• 1 X Rear main plate gasket
• 1 X Oil filter seal
• 1 X Oil pan gasket
• 1 X Oil pan drain plug washer
• 2 X Oil pump inlet O-ring
• 2 X Oil cooler block-off gasket
• 4 X Water pump gasket

​Vehicle Fitment Guide

Our new and innovative harmonic balancer removal tool has never made pulling off the factory balancer so simple. Designed in house using a very comprehensive 3D design package, our 3-jaw setup squarely removes the balancer without causing any damage to surrounding components. 

The main bolt diameter and Rockwell hardness for the relevant assemblies have been carefully researched and selected based off genuine engineering resources. The mammoth M20 thread on the main bolt is the largest compared to any other balancer puller currently on the market, meaning you can rest assured the threads won't strip even whilst removing the most stubborn balancers.

With its superior strength and rigidity, you can remove as many balancers as you like to the point we guarantee it can also be used in an industrial environment without failure.

This unit also features a modular support plate where the jaw set can be readily interchanged with ones of longer and shorter locking arms to further broaden the range of vehicles its compatible with.

Tool Loan:

This tool is also available to be loaned out for $45, but we will also require a $150 bond. The bond will be fully refunded once the tool has been returned in complete working order within 30 days.

Vehicle Fitment Guide

Parts Guide

Please select the part number you require from the drop down menu by utilising our vehicle fitment guide and parts guide.  

Notes:

• This tool is only compatible with the factory harmonic balancer. 
• The slots in the modular support plate can also be used to remove balancers from most makes and models as long as the right bolts are sourced.

Our new and innovative harmonic balancer removal tool has never made pulling off the factory balancer so simple. Designed in house using a very comprehensive 3D design package, our 3-jaw setup squarely removes the balancer without causing any damage to surrounding components.

The main bolt diameter and Rockwell hardness for the relevant assemblies have been carefully researched and selected based off genuine engineering resources. The mammoth M20 thread on the main bolt is the largest compared to any other balancer puller currently on the market, meaning you can rest assured the threads won't strip even whilst removing the most stubborn balancers.

With its superior strength and rigidity, you can remove as many balancers as you like to the point we guarantee it can also be used in an industrial environment without failure. 

This unit also features a modular support plate where the jaw set can be readily interchanged with ones of longer and shorter locking arms to further broaden the range of vehicles its compatible with.

Tool Loan:

This tool is also available to be loaned out for $45, but we will also require a $150 bond. The bond will be fully refunded once the tool has been returned in complete working order within 30 days.

Vehicle Fitment Guide

Parts Guide

Please select the part number you require from the drop down menu by utilising our vehicle fitment guide and parts guide.

Notes:

• This tool is only compatible with the factory harmonic balancer.
• The slots in the modular support plate can also be used to remove balancers from most makes and models as long as the right bolts are sourced.

This timing service kit is ideal for when having to replace the infamous timing chains found on late model vehicles fitted with the Alloytec V6. As soon as these gaskets are disturbed, which is inevitable during disassembly, their sealing properties basically become ineffective. This would lead to further issues if they were to be re-used. Replacing them with our high quality kit will ensure trouble-free motoring and peace of mind for all.

Contents:

• 01 X LHS rocker cover gasket
• 01 X RHS rocker cover gasket
• 01 X Upper Inlet manifold gasket
• 01 X Lower Inlet manifold gasket
• 06 X Spark plug seal
• 26 X Rocker cover bolt seal

Vehicle Fitment Guide

Note: Timing service gasket kit for SIDI engines can be purchased through another listing.

Valve springs are one of the most critical and overlooked components in your engine. Proper selection of the valve springs begins with identifying the application then selecting all the necessary componentry that will complement the springs in order for the engine to reach its full potential. Unfavourable results will ensue when installing a cam that will have an 8000rpm limit with the incorrect springs and supporting parts. Improper selection of the valve springs is one of the most common causes of engine failure. 

One of the biggest valve spring manufacturers in the States, a specific array of valve spring kits has been developed to work in conjunction with the latest range of next gen GM LS camshafts and all other aftermarket cams in the industry. Each kit is tailored for use with specific camshaft grinds and is available in a beehive, conical or cylindrical dual spring style setup.

Each kit is equipped with everything required to upgrade your valve-train when installing an aftermarket camshaft. All components are manufactured from high quality materials to ensure durability, and performance is maintained even in the harshest environment.

Contents:

• 16 X Valve spring (refer to Parts Guide)
• 16 X Retainer (refer to Parts Guide)
• 16 X Viton valve stem seal
• 16 X Case hardened valve-lock (Not included in SPG826)
• 16 X Chrome-moly spring seat (Only with dual valve spring kits)

Vehicle Fitment Guide

Parts Guide

Please select the part number you require from the dropdown menu by utilising our vehicle fitment guide and parts guide.

Notes:

• The image is for illustrative purposes only.
• Re-use factory spring seats for single conical valve spring kits.