This Mace MLS (Multi-Layer Steel) head gasket set features stainless steel faces, recommended for stock and mildly modified engines with standard LS head bolt pattern. It consists of five layers of steel, meeting the OE specifications.

Contents:

• 2 X MLS cylinder head gasket

Vehicle Fitment Guide

Note: A single cylinder head gasket can be purchased through another listing.

This package (GM part number: 12633906) is standard replacement for all GM LS-Series V8's except for LS1. However, it can also be used to adapt a Gen IV camshaft into a Gen III LS1 vehicle when combined with a CAS109081 cam/knock sensor extension as well as an appropriate timing set.

The GM 1-piece timing cover included in this package is built to the highest quality standards to ensure an excellent fit and leak free seal. This kit utilizes a front camshaft sensor allowing both single and multi trigger camshaft sprockets to be used.

Contents:

• 1 X 1-piece timing cover (GM: 12600326) 
• 1 X Timing cover gasket, cover to block (GM: 12633904)
• 1 X Cam sensor wiring harness (GM: 12627501)
• 1 X Cam sensor with seal (GM: 12591720)
• 1 X Crank shaft seal (GM: 12585673)
• 1 X Sensor harness bracket 
• 1 X Sensor harness retainer
• 2 X Cam sensor to cover bolt (GM: 11588712)
• 9 X Timing cover to block bolt (GM: 11515758)

Vehicle Fitment Guide

This is an OEM standard replacement component for all non-AFM (active fuel management) based Gen IV LS series V8's and can also be used as a direct bolt-on for Gen IV LS engines that are looking to delete the AFM / DOD setup within their engine. 

GM Part Number: 12570471

Contents:

• 01 X Aluminum valley plate
• 01 X Cover to block gasket
• 08 X O-ring
• 11 X Cover to block bolt

Vehicle Fitment Guide

Note: To completely delete the AFM/DOD system from your vehicle, you require additional componentry which 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

The Rollmaster Gold series timing chain kit is manufactured to exacting standards using billet steel for both the crank and camshaft sprockets. This kit comes with 9-keyway crankshaft sprockets to allow more adjustment for dialling in the cam. Crankshaft sprocket keyways are in 2 degree increments always unless otherwise stated. The relationship from crank keyway to camshaft sprocket timing is 2:1 meaning that the amount of advance or retard at the camshaft is in one degree increments i.e. 1, 2, 3 or 4 degrees. Multiple keyways are a solid fixture and do not tend to move or work loose like offset dowels, thus providing a positive locking of the cam timing to the desired position.

Rollmaster timing chain kit is light weight but stronger than any other kit available due to the weight savings of billet steel and CNC machinery. Rolling resistance is also substantially decreased on the cam gear with the use of a Torrington thrust bearing. No additional machining is required to fit this kit and there is no need for offset bushings or drilling of cam gears.

All Gold series timing chain kits feature a billet steel construction with nitrided sprockets for added strength and Rollmaster's own pro series Iwis full roller timing chain. This chain kit is ideal for high performance applications where the chain is exposed to constant shock loading and rapid acceleration/deceleration rates.

Contents:

• 1 X Double row timing chain
• 1 X 3 Bolt camshaft sprocket
• 1 X Crankshaft sprocket
• 1 X Oil pump drive 
• 1 X Torrington bearing
• 2 X Oil pump spacer
• 4 X Bolt
• 4 X Washer

Vehicle Fitment Guide

Notes:

• The image is for illustrative purposes only.
• Red series chain kits for standard upgrades can be purchased through other listings. 
• Timing cover will require minor linishing to allow extra clearance for double row timing chain.
• Double row timing chain is not recommended with the high volume oil pumps due to clearance issues.

This main cap girdle is designed to reduce "cap walk", stop block web flexing and eliminate cracking of the main caps/block webs; this is achieved by boxing in the main caps. Our light weight girdle evenly distributes load and dampens harmonics by bolting the main cap studs together to create a super strong rectangular cage. The brace nearly doubles the main web support area in the engine.

In addition, due to the close proximity of the main stud girdle to the crankshaft and rods it also aids in stripping oil off of the crank, which in itself yields a net gain in HP.

Fabricated from 12.5mm thick 6061-T6 aluminium, these girdles are a must for high rpm/high horsepower applications where block rigidity is critical.

Contents:

• 1 X Alloy main girdle

 Vehicle Fitment Guide

Notes:

• This girdle fits all GM LS variants except for LS7 and LS9.
• This girdle is compatible with OEM windage tray, main caps and sump.
• This girdle will clear up to a 4" stroke.

This main cap girdle is designed to reduce "capwalk", stop block web flexing and eliminate cracking of the main caps/block webs; this is achieved by boxing in the main caps. Our heavy duty girdle evenly distributes load and dampens harmonics by bolting the main cap studs together to create a super strong rectangular cage. The brace nearly doubles the main web support area in the engine.

In addition, due to the close proximity of the main stud girdle to the crankshaft and rods, it also aids in stripping oil off of the crank, which in itself yields a net gain in HP.

Fabricated from 12.5mm thick high strength steel, these girdles are a must for high rpm/high horsepower applications where block rigidity is critical.

Contents:

• 1 X Steel main girdle

Vehicle Fitment Guide

Notes:

• The images are for illustrative purposes only.
• This girdle fits all GM LS variants except for LS7 and LS9.
• This girdle is compatible with OEM windage tray, main caps and sump.
• This girdle will clear up to a 4" stroke.
• Custom length main studs are required. These can be purchased from any authorized ARP dealer.

Mace replacement rocker cover gasket set to suit all GM LS based engines. These press into the grove on the rocker covers just like the factory units to ensure a leak free seal.

Contents:

• 2 X Rocker/Valve cover gasket

Vehicle Fitment Guide

Note: These do not include the rocker cover grommets.

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.

ARP head studs greatly improve head-to-block sealing, which is important in engines with high power adders such as turbochargers, superchargers or nitrous. They can even be a great addition to a mildly modified build as insurance against failure.

These studs will last for the lifetime of your LS engines from 2004 onwards, making them a great investment!

Contents:

• 1 X ARP Head stud kit

Vehicle Fitment Guide

Note: ARP head stud kit for LS engines up to 2003 can be purchased through another listing.