These Mace MLS (Multi-Layer Steel) head gaskets are comprised of five layers of steel. The outer layers are an embossed viton coated stainless steel providing a superior seal with excellent rebound characteristics and corrosion resistance. MLS head gaskets reduce bore distortion and withstand extreme cylinder pressures. These can be used as standard replacement head gaskets but are more suited to higher calibre builds.

A surface finish of 50 RA (roughness average) or finer, is recommended on the head and block for a proper gasket seal. Anything rougher may conflict with the gasket design.

Specifications:

• Bore size: 3.84''
• Thickness: 0.066"

Contents:

• 1 X Cylinder head gasket set

Vehicle Fitment Guide

Notes:

• The image is for illustrative purposes only.
• It is highly recommended copper coat is used when installing these gaskets.
• Standard bore size is 3.80" so ideally, these gaskets would be more suited for oversized bores. However, they are still compatible with standard size. We have other listings for MLS gaskets that specifically suit standard size.

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.

Head bolts play a vital role in the sealing of the combustion chamber, oil/coolant channels and ambient air. Therefore, we recommend our Mahle 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 head bolt set suits Holden vehicles fitted with Ecotec L36 and L67 Supercharged V6 engines.

Contents:

• 16 X Head bolt

Vehicle Fitment Guide

Notes: 

• 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 used once due to permanent elongation and safety concerns.

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

Dayco’s automatic belt tensioner maintains proper belt tension throughout the belt drive by incorporating an automatic, spring-loaded tensioner into the drive system geometry. It features a patented “flat spring” design that’s engineered to provide less operating range variations in tension. This reduces the risk of premature accessory bearing failure due to high tension when a new belt is installed. It also lessens the risk of belt squeal and slippage, or poor accessory performance caused by low tension after the belt begins to stretch and wear. A Teflon strip wound within the spring resists abrasion. The flat spring itself is coated to resist rust.

Other superior design features include:

• A heavy-duty cast aluminium spring case resists cracking and fatigue.
• A heavy-duty cast aluminium arm offers additional strength and less distortion.
• An aluminium retainer ring locks the spring case and arm together, and seals against corrosion.
• A thermoplastic rubber “spring slot plug” keeps out harmful contaminants.
• The lubricated nylon “pivot tube bushing” and “spring bushing” promote quieter performance.
• A rubber “O” ring seals against dust and grime.
• The zinc coated mounting bolt resists rust, and is concentric for a more even degree of constant tension.

In order to meet OEM performance standards, this Dayco automatic tensioner comes with a steel pulley that features a dust cover to protect against contaminants.

Vehicle Fitment Guide

This bottom end conversion gasket kit meets our highest standards of quality and reliability. Every component in this kit is locally manufactured from premium automotive grade material for extended durability and performance.

This bottom end conversion gasket kit suits Holden Commodores and similar platforms fitted with Ecotec L36 and L67 Supercharged V6 engines (09/2000 engine number VH756062 onwards).

Contents:

• 1 X Sump gasket (refer to Parts Guide)
• 1 X Viton rear main seal
• 1 X Rear main cover gasket
• 1 X Crankshaft seal
• 1 X Oil filter adapter gasket
• 1 X Oil pick up tube gasket
• 1 X Timing cover gasket
• 2 X Water pump gasket
• Necessary seals/washers/o-rings

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: Bottom end conversion gasket kit to suit Ecotec L36 & L67 upto 08/2000, engine number VH756061, can be purchased through another listing.

Here at Mace Engineering, we pride ourselves in providing exceptional customer service and always look to go that extra mile when it comes to customer assistance. Therefore, we've finally put together a number of cam packages at a discounted price for all the Ecotec V6 fans out there who don't want to waste time and feel misguided when it comes to mixing and matching parts. Each component has been selected to ensure the valve-train remains bullet-proof when it's most needed and the contents of each kit have been tailored to accommodate the cam that comes with it.

These sought after packages include every supporting part required for a full cam install. The camshafts themselves are from our current range (CAM601-CAM672-CAM673), so performance gains have been previously verified over an extended period of time. Please search the aforementioned cam part numbers in our other listings for comprehensive specifications; otherwise enjoy our headache-free, unambiguous and brand new cam packages.

Contents:

• 01 X CAM601 - Crow Cams L36 performance camshaft
• 01 X Rollmaster double row timing chain
• 01 X Machined oil pump cover
• 12 X Crow Cams 105lb valve spring
• 12 X Mace hardened retainer
• 12 X Viton valve stem seal
• 12 X Crow Cams hydraulic roller lifter
• 12 X Crow Cams super duty pushrod
• 24 X COMP Cams valve lock

Vehicle Fitment Guide

Notes:

• Pushrod length will require checking if heads have been skimmed or block has been decked.
• We may be able to provide a memcal for this package depending on your setup. Please contact us for further details.
• We recommend dialing in all aftermarket cams using a degree wheel to ensure that they’re phased correctly with the crankshaft. You can do this by using our 8" or 11" degree wheel listed in other ads.
• Removing the timing cover may upset the sump gasket depending on certain models. We stock cork and metal sump gaskets if yours cannot be re-used.
• Stage 2 & 3 Performance cam packages can be purchased through other listings.
• We have all gaskets available through other ads.
• The image is for illustrative purposes only.

Here at Mace Engineering, we pride ourselves in providing exceptional customer service and always look to go that extra mile when it comes to customer assistance. Therefore, we've finally put together a number of cam packages at a discounted price for all the Ecotec V6 fans out there who don't want to waste time and feel misguided when it comes to mixing and matching parts. Each component has been selected to ensure the valve-train remains bullet-proof when it's most needed and the contents of each kit have been tailored to accommodate the cam that comes with it.

These sought after packages include every supporting part required for a full cam install. The camshafts themselves are from our current range (CAM602-CAM603), so performance gains have been previously verified over an extended period of time. Please search the aforementioned cam part numbers in our other listings for comprehensive specifications; otherwise enjoy our headache-free, unambiguous and brand new cam packages.

Contents:

• 01 X CAM602 - Mace L36 performance camshaft
• 01 X Rollmaster double row timing chain
• 01 X Machined oil pump cover
• 12 X Crow Cams 130lb valve spring
• 12 X Mace hardened retainer
• 12 X Viton valve stem seal
• 12 X Crow Cams hydraulic roller lifter
• 12 X Crow Cams super duty pushrod
• 24 X COMP Cams valve lock

Vehicle Fitment Guide

Notes:

• Pushrod length will require checking if heads have been skimmed or block has been decked.
• We may be able to provide a memcal for this package depending on your setup. Please contact us for further details.
• We recommend dialing in all aftermarket cams using a degree wheel to ensure that they’re phased correctly with the crankshaft. You can do this by using our 8" or 11" degree wheel listed in other ads.
• Removing the timing cover may upset the sump gasket depending on certain models. We stock cork and metal sump gaskets if yours cannot be re-used.
• Stage 1 & 3 Performance cam packages can be purchased through other listings.
• We have all gaskets available through other ads.
• The image is for illustrative purposes only.

Here at Mace Engineering, we pride ourselves in providing exceptional customer service and always look to go that extra mile when it comes to customer assistance. Therefore, we've finally put together a number of cam packages at a discounted price for all the Ecotec V6 fans out there who don't want to waste time and feel misguided when it comes to mixing and matching parts. Each component has been selected to ensure the valve-train remains bullet-proof when it's most needed and the contents of each kit have been tailored to accommodate the cam that comes with it.

These sought after packages include every supporting part required for a full cam install. The camshafts themselves are from our current range (CAM602-CAM603), so performance gains have been previously verified over an extended period of time. Please search the aforementioned cam part numbers in our other listings for comprehensive specifications; otherwise enjoy our headache-free, unambiguous and brand new cam packages.

Contents:

• 01 X CAM603 - Mace L36 performance camshaft
• 01 X Rollmaster double row timing chain
• 01 X Machined oil pump cover
• 12 X Crow Cams 130lb valve spring
• 12 X Mace hardened retainer
• 12 X Viton valve stem seal
• 12 X Crow Cams hydraulic roller lifter
• 12 X Crow Cams super duty pushrod
• 24 X COMP Cams valve lock

Vehicle Fitment Guide

Notes:

• Pushrod length will require checking if heads have been skimmed or block has been decked.
• Dyno tune is required post installation for this package (we can recommend a local workshop in most cases).
• Cam in this package is designed for use with ported heads and added displacement.
• We recommend dialing in all aftermarket cams using a degree wheel to ensure that they’re phased correctly with the crankshaft. You can do this by using our 8" or 11" degree wheel listed in other ads.
• Removing the timing cover may upset the sump gasket depending on certain models. We stock cork and metal sump gaskets if yours cannot be re-used.
• Stage 1 & 2 Performance cam packages can be purchased through other listings.
• We have all gaskets available through other ads.
• The image is for illustrative purposes only.

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.