These Mace standard replacement engine exhaust valves have been speifically designed to suit Holden Alloytec and SIDI V6 engines. These valves are manufactured utilizing qualilty alloy to meet highest industry standards so you can be assured of perfect fitment and long lasting performance.

Valve specifications:

• Head diameter: 30.6mm
• Stem diameter: 6.0mm
• O/length: 97.1mm
• Collette type: Single groove   

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MACE Support - Product Assistance Guide

To submit a formal enquiry about any of our products or services, please click on the link below:

MACE Support - Submit an enquiry

DOMESTIC ORDERS

Orders typically take 1-3 business days to prepare and process prior to dispatch. Freight may take 1-10 business days from the date of dispatch to delivery within Australia. No Weekend Deliveries.

To Calculate freight costs simply proceed to the checkout where shipping will be calculated automatically.

INTERNATIONAL ORDERS

When you are checking out an international order, please complete all the necessary information. You must select your region from the delivery method drop down menu, to get the correct shipping costs.

Orders outside of Australia may take up to 4 weeks.

*You will be responsible for any applicable taxes and/or duties and will need to be paid upon delivery*

*Saturday and Sunday ARE NOT business days*

We at MACE ENGINEERING are a design company specialising in automotive product development. From a one off custom design right through to mass manufacturing product, we can deliver.

With over 25 years of experience, you can be assured we’ll make it happen for you. In addition to automotive products, we’ve also been involved in the design and manufacture of other items such as steel structures for the manufacturing and movie industries, consumer products, specialised machinery and electronics engineering and all things that help improve the performance of your Holden or Ford.

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