Home > Billlet Parts

Using our CNC Milling and CNC lathe, we create custom parts from billet alloy, steel, stainless, titanium and more for all your rotary applications.
We specialist in RX-8s and using billet, we’ve created all the adapters required to convert your Renesis to an FD RX-7 13B or 20B Cosmo engines.

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Mazda billet bellhousing

Our new Promaz billet steel bellhousing to suit Mazda rotary.
For the serious racers, no need for ugly bulky scattershields.

Our Price: $3,000.00
13B Rotary BILLET Rear Plate

Lightweight billet alloy CNC design.

Our Price: $2,750.00
13B Rotary BILLET Front Plate

Lightweight billet alloy CNC design.
Compatible with both 13B and 20B engines.

Our Price: $2,750.00
Sump - 20B - RX-3/RX-4

Billet alloy sump for Mazda 20B engine.
Suits RX-3 or RX-4.

Our Price: $1,695.00
RX-8 20B sump

Billet alloy sump for your RX-8 20B conversion.

Our Price: $1,650.00
Engine crossmember - Mazda 626

Lower front engine crossmember and brace for your rotary conversion in a Mazda 626.
Brace is CNC billet alloy.

Our Price: $1,295.00
Mechanical Fuel Pump Mounting kit

Designed to mount an Aeromotive fuel pump.
Can be used with mechanical water pump and alternator.

Our Price: $1,295.00
Sump - 13B - RX-3/RX-4

Billet alloy sump for Mazda 13B engine.
Suits RX-3 and RX-4, with O-ring groove.

Our Price: $1,250.00
Sump - 13B

Billet alloy sump for Mazda 13B engine.
Suits R100, RX-2, 1200, 1000 Ute (reversed) with O-ring groove.

Our Price: $1,195.00
Water Pump

Water pump replacement for 12A, 13B and 20B engines. Reduced length over standard pump by 40mm. Increases room for radiator and fan placement.

Our Price: $660.00
Throttle body flange with fuel rail

Suits FD, 13B and 20B Cosmo engines.

Our Price: $595.00
RX-8 Air conditioning adapter

Adapter for Air Conditioning when converting your RX-8 to an FD 13B, Cosmo 13B, or 20B turbo engine.

Our Price: $595.00
Surge tank

3.5L
Made form billet alloy.
Can accommodate 3 in-tank pumps.
Perfect with our Walboro pumps.

Our Price: $595.00
Fuel rail kit

Suits FD RX-7 and Cosmo 13B.
Fuel rail and brackets.

Our Price: $395.00
Engine brace - Mazda 1200/1300/R100

Lower front engine brace for Mazda 1200, 1300 or R100 models.
Increases rigidity and strength to chassis, espeically when powering up your old Mazda.

Our Price: $395.00
Engine brace RX-3

Lower front engine brace, CNC billet alloy, direct bolt up.

Our Price: $330.00
Engine brace RX-3 recessed 20mm

Lower front engine brace, CNC billet alloy, direct bolt up. Moves your engine back 20mm to increase front end clearance.

Our Price: $330.00
Billet steel flywheel

Suits turbo ring gear and 8.5" clutch.

Our Price: $330.00
Alternator side mount relocation kit

This Kit will relocate your Alternator from the top of your engine to the side, will suit 12A/13B/20B.

Our Price: $330.00
Engine brace - Universal

Lower front engine brace for your rotary conversion. Comes with built in mounts.

Our Price: $330.00
Gearbox mount - RX-7

Gearbox mount for FC turbo RX-7
CNC billet alloy.
Bush included.

Our Price: $295.00
Engine brace - RX-2

Lower front engine brace, CNC billet alloy, direct bolt up. Available for both Mazda RX-2 and RX-3.

Our Price: $295.00
Strut tops - RX-3

Pair of billet RX-3 strut top covers.
Crafted from CNC Billet alloy, dress up your RX-3 engine bay.

Our Price: $295.00
Electric water pump adapter

Available in alloy and black.
Currently out of stock allow 6 weeks

Our Price: $220.00
Coil mounting plate

Holds 4 coils.

Our Price: $220.00
Weld wheel centre cap

Center cap and spacer for your Weld wheel to clear caliper.
CNC billet alloy. Two caps in kit.

Our Price: $195.00
Crank pulley

Front engine crank pulley for twin belts.
Available in alloy and black.
Note: Red and blue colours are not being produced anymore.

Our Price: $165.00
Injector block off -13B

Block off plate for primary injectors on FC RX-7.
Made from billet alloy.

Our Price: $165.00
Air pump removal kit

FD RX-7 air pump removal kit.

Our Price: $145.00
RX-8 Oil Filter Adapter

Oil filter adapter for when converting your RX-8 to a 13B, Cosmo and 20B engine. Currently out of stock allow 6 weeks approx

Our Price: $132.00