CJS Performance Engineering

Directions Website

CJS Performance Engineering All designed & machined in-house for maximum performance & reliability.

CJS Performance Engineering, with 35+ years of racing experience, designs & manufactures high-quality billet aluminium and steel parts for the motor racing industry and enthusiasts.

17/10/2026

Early Holden Billet Valve covers looking 😎




14/10/2026

Our Billet wheels going from design concept to reality.



Our Billet Valve Covers for early Holden V8 rolling through now.
06/10/2026

Our Billet Valve Covers for early Holden V8 rolling through now.




02/10/2026

Making chips on some new Holden Billet Valve Covers.
Billet starts out at 15kg and is reduced to 5.6kg after the first operation😧.



29/09/2026

Billet torque plates for cylinder honing.
We make them for various engines. If you’re serious about your cylinder geometry then you need these.

28/09/2026

Precision TIG welding and smooth transitions on these custom merge collectors. Built in-house to maximize exhaust scavenge and horsepower for race day. What header setup are you running?

24/09/2026

Custom spacer designed for a local engine builder’s stout combination that is coming together.

24/09/2026

Custom spacer designed for a local engine builder’s stout combination that is coming together.

23/09/2026

Checking & Machining clearance for pushrods. Also making sure port alignment and bolt holes have enough clearance prior to final assembly.
Often overlooked early on in the process.

19/09/2026

Some of the Merge Collectors we have been fabricating recently.

Address

4/53 Macaulay Street
Williamstown North, VIC
3016

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

Website

Alerts

Be the first to know and let us send you an email when CJS Performance Engineering posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Shortcuts

Share

Category