These multi-layer steel (MLS) cylinder-head gaskets meet the requirements of modern gasket systems and help boost torque and performance while delivering better fuel economy and emissions. They are precisely designed to match the OE in quality, fit, form, function and let you keep your vehicle in tip-top working order.

Vehicle Fitment Guide

Notes:

• Single LHS or RHS cylinder head gasket can be purchased through other listings.
• New cylinder head bolts must also be used when replacing head gaskets. These can be purchased through another listing. 

This multi-layer steel (MLS) right hand-side cylinder-head gasket meets the requirements of modern gasket systems and helps boost torque and performance while delivering better fuel economy and emissions. This gasket is precisely designed to match the OE in quality, fit, form, function and let you keep your vehicle in tip-top working order.

Vehicle Fitment Guide

Notes:

• A single LHS gasket or a complete head gasket set can be purchased through other listings.
• New cylinder head bolts must also be used when replacing head gaskets. These can be purchased through another listing.

This multi-layer steel (MLS) left hand-side cylinder-head gasket meets the requirements of modern gasket systems and helps boost torque and performance while delivering better fuel economy and emissions. This gasket is precisely designed to match the OE in quality, fit, form, function and let you keep your vehicle in tip-top working order.

Vehicle Fitment Guide

Notes:

• A single RHS gasket or a complete head gasket set can be purchased through other listings.
• New cylinder head bolts must also be used when replacing head gaskets. These can be purchased through another listing. 

This standard replacement oil pump is designed to meet and exceed OEM specifications when it comes to strength and performance. Each pump has been checked and evaluated so you can be assured of quality fitment every time. It suits a range of Commodores and similar platforms fitted with Alloytec or SIDI V6 engines.

This oil pump comes with a 1 year/20,000km parts only warranty.

Contents:

• 1 X Oil pump
• 1 X Timing chain guide

​​Vehicle Fitment Guide

Note: The image is for illustrative purposes only.​

NPR® (Nippon Piston Ring) was established in 1931 and has six manufacturing plants in Japan and a further 9 plants in the USA, Europe and Asia employing 2310 staff. NPR® is recognised as a world leading manufacturer and is original equipment to major Japanese and European automotive companies.

NPR's unrivalled piston rings are manufactured to exacting specifications so proper fit and clearance are achieved. When it comes to enduring the extreme conditions that occur in the combustion chamber while performing such functions as sealing, heat dissipation and oil control, there's no better option than Nippon rings. Perfect for standard rebuilds and lightly modified vehicles.

Specifications:

• Piston ring width: 1.2 x 1.5 x 2.5mm
• Top ring material: Chrome
• Ring surface treatment: Gas nitrided and ferrox coated

Contents:

• 1 X Nippon piston ring set

​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:

• The image is for illustrative purposes only.
• Please refer to manufacturer’s specifications for the correct installation.
• These piston rings suit aftermarket pistons only. Stock piston rings to suit LLT and LFX engines can be purchased through another listing. If unsure, please confirm the required width of the piston ring first or contact us for further assistance.

Head bolts play a vital role in the sealing of the combustion chamber, oil/coolant channels and ambient air. Therefore, we recommend our Ajusa cylinder head bolt set for the task. Having met and exceeded OEM specifications, these quality bolts are suited for standard and mildly modified applications. These are torque-to-yield (TTY) bolts which means they are designed to be tightened past their elastic limit, guaranteeing high and uniform clamping forces. Other benefits include pre-applied sealant to the threads eliminating the use of thread locker and no-retorquing is necessary after correct installation procedures have been followed.

This cylinder head set suits Holden vehicles fitted with Alloytec LY7, LE0, LW2, LWR, LU1, LCA and SIDI LF1, LFW, LLT, LFX V6 engines.

Contents:

• 16 X Long cylinder head bolt (M11 x 2.00 x 152)
• 04 X Short cylinder head bolt (M8 x 1.25 x 90.5)

Vehicle Fitment Guide

Notes:

• This is enough for one complete engine.
• When torquing up bolts, an accurate torque wrench or angle gauge will be required to achieve correct clamping forces.
• Please follow the torque specifications as recommended by the service manual.
• TTY bolts are only to be utilized once due to permanent elongation and safety concerns.

Exclusive to Mace Engineering, here we have our design-registered lower manifold insulators to suit the Holden VZ and VE series, fitted with an Alloytec 3.6L V6.

What are manifold insulators and what do they do?

Manifold insulators are a thermal insulating spacer that mount between your engine block and intake manifold. Made from a heat blocking composite, our manifold insulators will increase power from your engine by keeping the intake cooler and increase low end torque by increasing runner length. 

But how do manifold insulators keep the intake manifold cooler?

Given our manifold insulators are made from a composite material with a thermal conductivity of 0.29 W/m*K as opposed to aluminium, which has a thermal conductivity of 150 W/m*K; the difference works out to be that aluminium conducts heat 500 times higher than our composite material!

Also, with gaskets often made out of steel (thermal conductivity of 20 W/m-K) placed between the upper and lower manifolds being 0.5mm thick, replacing them with a manifold insulator will conduct up to an amazing 3,448 times less heat depending on the size chosen.

Our composite material also exhibits high stiffness and compressive strength, can withstand temperatures up to 150°C, and has a thermal expansion coefficient very similar to aluminium to increase sealing capabilities. In addition, the spacer can also withstand boosted conditions with ease.

Dyno Results:

The following test was conducted on a 2007 model Holden Statesman, with a standard Alloytec 6. Looking at the graph, we can see that power produced down low had increased by a staggering 10%! While power also increased virtually across the entire rev range. Please note that these results don't reflect the true nature of the on road gains given the lack of actual airflow, which further drop inlet temps.

Under normal driving conditions the plenum (upper manifold), with the insulator in place, becomes cool enough to comfortably touch. Unlike before, without the manifold insulator installed under the same driving conditions, making it very difficult to touch without getting burnt!

 POWER RUN, BEFORE AND AFTER MANIFOLD INSULATOR

Key Benefits:

• Design registered.
• Reduces charge air temperature resulting in better power consistency and detonation prevention.
• Power increase with no undesirable side effects.
• Improved low end torque by increasing runner length.
• Improved fuel economy.
• Easy to install.
• Can be used as a replacement gasket.
• Reusable.
• Proven gains at an affordable price.

Contents:

• 1 X Bolt pack (Not included in MI635)
• 1 X Silicone gasket maker
• 2 X Manifold insulator

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.

Note: Our 25mm manifold insulator kit cannot be installed on MY09.5 vehicles due to obstruction of the water hose.

Exclusive to Mace Engineering, here we have our design-registered lower manifold insulators to suit the Holden VZ and VE series, fitted with an Alloytec 3.6L V6.

What are manifold insulators and what do they do?

Manifold insulators are a thermal insulating spacer that mount between your engine block and intake manifold. Made from a heat blocking composite, our manifold insulators will increase power from your engine by keeping the intake cooler and increase low end torque by increasing runner length. 

But how do manifold insulators keep the intake manifold cooler?

Given our manifold insulators are made from a composite material with a thermal conductivity of 0.29 W/m*K as opposed to aluminium, which has a thermal conductivity of 150 W/m*K; the difference works out to be that aluminium conducts heat 500 times higher than our composite material!

Also, with gaskets often made out of steel (thermal conductivity of 20 W/m-K) placed between the upper and lower manifolds being 0.5mm thick, replacing them with a manifold insulator will conduct up to an amazing 3,448 times less heat depending on the size chosen.

Our composite material also exhibits high stiffness and compressive strength, can withstand temperatures up to 150°C, and has a thermal expansion coefficient very similar to aluminium to increase sealing capabilities. In addition, the spacer can also withstand boosted conditions with ease.

Dyno Results:

The following test was conducted on a 2007 model Holden Statesman, with a standard Alloytec 6. Looking at the graph, we can see that power produced down low had increased by a staggering 10%! While power also increased virtually across the entire rev range. Please note that these results don't reflect the true nature of the on road gains given the lack of actual airflow, which further drop inlet temps.

Under normal driving conditions the plenum (upper manifold), with the insulator in place, becomes cool enough to comfortably touch. Unlike before, without the manifold insulator installed under the same driving conditions, making it very difficult to touch without getting burnt!

 POWER RUN, BEFORE AND AFTER MANIFOLD INSULATOR

Key Benefits:

• Design registered.
• Reduces charge air temperature resulting in better power consistency and detonation prevention.
• Power increase with no undesirable side effects.
• Improved low end torque by increasing runner length.
• Improved fuel economy.
• Easy to install.
• Can be used as a replacement gasket.
• Reusable.
• Proven gains at an affordable price.

Contents:

• 2 X Manifold insulator

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: 

• Our 25mm manifold insulator cannot be installed on MY09.5 vehicles due to obstruction of the water hose.
• Longer bolts are required for the installation of these manifold insulators.

Don't fall into the trap of using cheap and nasty replacement engine parts to get the job done. Invest in the genuine OEM replacement components to ensure prolonged reliability and exceptional performance.

This genuine engine valve rocker arm/cam follower is compatible with all high feature Holden 6 cylinder engines. It would be convenient to replace this when the timing chains or camshaft phasers are being serviced.

GM Part Number: 24100294

Contents:

• 1 X Engine valve rocker arm

Vehicle Fitment Guide

Note: A set of 24 engine valve rocker arms can be purchased through another listing.

Don't fall into the trap of using cheap and nasty replacement engine parts to get the job done. Invest in the genuine OEM replacement components to ensure prolonged reliability and exceptional performance.

These genuine engine valve rocker arms/cam followers are compatible with all high feature Holden 6 cylinder engines. It would be convenient to replace these when the timing chains or camshaft phasers are being serviced.

GM Part Number: 24100294

Contents:

• 24 X Engine valve rocker arm

Vehicle Fitment Guide

Note: A single engine valve rocker arm can be purchased through another listing.