ATAT Performance Parts Australia

03/05/2026

Work never stops
Another cowl on the way out the door
Remember these are taller and wider to be able to fit any 2.5lt power head
No painting required these are gelcoat

13/03/2026

NEW PRODUCT RELEASE – BILLET ONE-PIECE HEADS

We are pleased to announce our new billet one-piece heads are currently undergoing dyno testing in the United States with Ron Anderson, fitted to an F1 powerhead.

Product features:
• One-piece billet construction
• Precision machined O-ring seal
• Multiple compression options available
• Designed for high performance 2.5Lt motors
• Manufactured in Australia
We have currently in stock
32cc race heads
36cc head set
30cc EFI/Promax heads

$880.00 USD
Plus Shipping plus Anodising
Pre-orders are required to confirm machining numbers.

For enquiries or to secure a set, please send us a message.

11/03/2026

NEW PRODUCT RELEASE

Our new custom billet return spring bracket mounts through both head bolts, allowing you to torque the heads correctly while keeping the bracket locked in the exact position.

✔ Billet aluminium construction
✔ Precision CNC machined
✔ Stronger and more secure than factory setup
✔ Perfect for performance and race engines

Available now. $30.00

Our custom billet return spring bracket is included when purchasing our billet one-piece heads as part of the complete package.

08/03/2026

A lot of our 3L guys have been asking for higher compression heads.
ATAT Performance Parts Australia can machine your existing heads to increase compression and re-machine the O-ring groove back into them.

To get this happening we need 5 more sets to commit before we start the run.
First in, first done. 🚤🔥
$395.00

08/03/2026

Calling all 3lt Merc guys and girls

The billet alternator bracket you’ve all been asking for is here.
Designed for high-performance race boat setups where strength and reliability matter.

To make this happen, the manufacturer requires a minimum run of 10 units, so we need at least 10 pre-sales before we can go ahead.

Pricing will be posted in the next few days. Keep watching this post.

We would like to start making 3lt engine parts,
In the comment section below please share with us what parts are needed to keep the dream alive for the 3lt motors

08/03/2026

03/03/2026

Heads are back from anodising and ready to be shipped.

10/02/2026

Attention, attention! Shine, baby, shine! Order now, limited sets available. Private message us.

29/01/2026

13/01/2026

Our heads are in production!!!
We are offering a payment plan
Head set $1250 bare billet set
Head set anodised bodys only $1400 (domes remain billet )
Here is how it works

1. Send us a msg confirming you want a set with your desired CC’s

2. We will send you an invoice with your payment plan split into 4 payments.

3. Payment 1 is to confirm order, the following 2 pay are to be paid on a fortnightly schedule
Then final payment when we confirm delivery

4. There will be a standard shipping fee for Australia only of $45.00

For our friends all over the world we are offering PayPal payments
Shipping will be calculated once we have all your details.

We want to see our heads on as many motors as possible and keep it affordable for everyone.

Send us a msg to confirm your order
Thanks for your support
ATAT