All Holden & HSV V8 models. World-famous GMM V3 LS heads ported in-house on our 5-axis CNC, matched to a camshaft from our 20-year range — mild to wild — and custom dyno tuned by Phonsy Mullan.
One price, every Holden & HSV V8 platform. No outsourcing — heads, cam, fitting and tuning all done under one roof in Melton.
A $250 holding deposit books your car in — non-refundable, credited to your final invoice.
One of the only workshops in Australia that doesn't outsource any work on a Head & Cam package. Every set of our world-famous V3 LS CNC heads is ported in-house on our 5-axis CNC machine — the same heads behind 3 World Championships and 18 National Titles in V8 Superboats.
Build Your QuoteIndicative power delivery before and after — gains up to 214hp depending on model, camshaft choice and supporting mods. Every car leaves with its own dyno print-out.
All we require is a $250 holding deposit to book your car in. Note: this deposit is non-refundable, however it is credited to your final invoice. Learn more about our camshafts.
Two decades of designing and grinding our own LS camshafts — from daily-driveable to full race. Our range runs mild to wild: Super Stock, Stealth, Torque Master, Street Racer, Chopper Reid and the Turbo Killer. They've powered some of the fastest street cars in Australia, and we hold the record for the fastest cam-only VE SS.
Pick Your Cam
Every vehicle is individually custom dyno tuned by Phonsy Mullan — a pioneer in LS engine development, 3× V8 Superboats World Champion and leader of the GM Motorsport race team for over 15 years. No generic files, no one-size-fits-all calibrations.
"Had an OTR and tune done on my wagon, pulled great numbers and couldn't be happier with the workmanship and service I received at GM Motorsports. Thanks to the team!!"
— Andrew Smith"Had my car done with a Turbo Killer Cam & Hi-Stall, don't regret it one bit. Awesome service as always, more than helpful, highly recommended."
— STREETL0W"Over the years I've had a few cars in for performance work with GM Motorsport, they're very friendly and always answer any questions. Very reliable workshop, highly recommended!"
— Daniel SavastaReal footage from the GM Motorsport workshop — CNC porting, cam installs and dyno runs on the cars we build.
Yes — that's the point of choosing your camshaft. Super Stock and Stealth work with a standard stall converter and keep factory-like manners, while Street Racer, Chopper Reid and Turbo Killer trade some street comfort for more power. Every package is custom dyno tuned by Phonsy Mullan for drivability, not just peak numbers.
Typically 5–7 working days for a head & cam package, depending on your combination and any extras like lifters or exhaust work. We'll confirm a timeframe when you book.
Not with the Super Stock or Stealth grinds. The bigger cams benefit from a converter on automatics — the Dominator Torque Converter is available as a supplied-and-fitted extra ($3,500), and we'll advise what suits your combo before any work starts.
Yes — L76 and L77 engines require a DOD (AFM) delete with LS7 lifters & buckets, listed in the extras at +$648. It's required for reliability with a performance camshaft and we do it during the same build.
Our workmanship is guaranteed and every package leaves with a dyno print-out. Engine modifications can affect any remaining factory warranty — most cars we build are outside factory warranty, but give us a call if yours isn't and we'll talk it through.
Call 03 9746 6656 or send the enquiry form below. A $250 holding deposit secures your booking — it's non-refundable but comes straight off your final invoice.
Send your build through and we'll confirm pricing and booking times. Or just call — a $250 holding deposit secures your spot.
HEAD & CAM SPECIAL