Built to order — every unit is specified in consultation with us.

No two builds are the same. Tell us about your project using the Request a Quote form above — or message us on WhatsApp +61 417 238 033 or sales@billetrotary.com.au — and we'll come back to you with a formal quotation for your exact specification.

Indicative pricing from $29,999 AUD. Final pricing depends on specification, selected options and current component costs.

High-value assemblies are invoiced directly and paid by bank transfer — we don't take five-figure payments through online checkout. Your quote will include payment details, build lead time and worldwide freight options.

Billet 20B Core Block

Please note: The listed price is a basic guide and will require an individual quote based on your specific needs.

This kit includes:

Billet Pro 7000 Series Front plate
Billet Pro 7000 Series 20B Centre plate ( Added bearing support option available)
Billet Pro 7000 Series Intermediate Plate
Billet Pro 7000 Series Rear Plate
Mazda S5 Turbo Rotor Housings x3
Front Stationary gear (Comes with factory fitted bearing)
Centre Stationary gear (20B bearing used)
Rear Stationary gear (Custom with factory fitted bearing)
1/2UNC 4340 Hex head Stud kit with ARP Nuts and washers
Low tolerance CNC machining to all plates and housings to suit the stud kit
Precision ground solid Dowel Kit
Billet Insert removal and fitment tool

These high quality units Feature:

Cosmo pattern intake ports
Super Strong 7075 billet aircraft grade aluminum
Can be used for either Street or Racing use.
Water cooling flowpath design to exceed OEM flow rates.
OEM spec design. (All of you accessories will bolt straight on)
Replaceable precision ground cast iron wear face (Inserts) with advanced screw type retainer design
Intermediate Plate can be used with any eccentric shaft option (Widgets for centre bearing sold separately)

Custom options

20B Billet Engine Core Block Package

$29,999.99

PORT

Quantity

All prices displayed on this website are subject to change without notice.

While Billet Rotary Pty Ltd makes every effort to ensure that product descriptions, specifications, images, and pricing are accurate and up to date, errors may occasionally occur due to typographical, technical, photographic, or supplier pricing changes.

Submitting an order and receiving an order confirmation email does not constitute acceptance of your order. All orders are subject to review and acceptance by Billet Rotary Pty Ltd. An order is deemed accepted only when it has been processed and dispatched.

If we discover that a product has been listed with an incorrect price before an order has been accepted, we reserve the right to cancel or decline the order. If this occurs, we will notify you as soon as possible and provide you with the option to purchase the product at the correct price or receive a full refund of any payment made.

If the correct price is lower than the price displayed at the time of your order, we will charge the lower amount where possible or refund the difference if payment has already been processed.

Nothing in this policy excludes or limits your rights under the Australian Consumer Law.

20B Billet Engine Core Block Package

Pricing Errors, Price Changes & Order Acceptance

Related Products

Talk to us

Follow us