666 Performance

666 Performance Everything for your Harley Davidson or Custom Bike Break Down Service and Pick Up...S&S Components Available Call 0439484666....

666 Performance will service and maintain your Harley Davidson with expert advice and many years experience. Engine upgrades are a speciality,mild to wild ....Horsepower costs money,how fast do you want to go.S&S Proven Performance Components
Custom Fitting of all accessories,with many one of parts made to suit your tastes. Drag Racing set ups for your Harley Davidson,with engines,transmissions,gearing,tyres and special tuning to suit..

24/06/2026

Its on again Saturday 29th August...
Frogs Hollow Bike Show....
Major sponsor on board...Details Soon.

Cant wait to see this old jigger in the frame running again....Its been a long term mission...getting the right parts, c...
13/04/2026

Cant wait to see this old jigger in the frame running again....Its been a long term mission...getting the right parts, clearances and making it all fit...Its gone up to 76 cubes, 9.1:1 Compression,S&S 514 Cam and lots of other great bits and pieces...
Its an old 1977 Shovelhead from a matching frame and engine number bike....😎😎

So Tracey had this 2007 Injected Sportster..883 with about 53 Hp and 55 Ft/lbs Torque...Hmmm.Can we make it go a bit bet...
26/02/2026

So Tracey had this 2007 Injected Sportster..883 with about 53 Hp and 55 Ft/lbs Torque...Hmmm.
Can we make it go a bit better...????
Well after turning it into a 1200cc...No we didnt use the complimentary 9.1:1 Compression Kit that would have rendered about 67 Hp and 70 Ft/lbs...
We got a set of cylinders,bored them .010" oversize and torqueplate honed them to suit Flat Top Pistons..Redone the 883 heads,valve job,altered the combustion chambers to give us 10.3:1 Compression.
Standard cams ect ect...
76 Hp and 82 Ft/Lbs of Sportster Power...except now the clutch is struggling to cope....
Big Thanks to Pro Cycle Dyno and Andrew Fred Badcock for fitting us in today...always a good day out at Pro Cycle Dyno.

You want a great day out...Dont miss 22nd Annual Rebel Pigs Arse Poker Run..Easter Saturday 4th April... Isis RSL Childe...
20/01/2026

You want a great day out...Dont miss 22nd Annual Rebel Pigs Arse Poker Run..Easter Saturday 4th April... Isis RSL Childers..All Welcome

So here we have a stock standard 96 Cube Twin Cam in a Dyna...All we fitted to it was a set of Vance and Hines Big Shots...
19/11/2025

So here we have a stock standard 96 Cube Twin Cam in a Dyna...All we fitted to it was a set of Vance and Hines Big Shots that have the exhaust crossover between the primary pipes, an S&S Stealth Air Cleaner assembly and a Standard Throttlebody that was modified for more air flow...
Thanks to Andrew Fred Badcock at Pro Cycle Dyno for his time and fitting us in to a mega tight schedule...
More than happy with the results of this little project....

Thanks for your kind words buddy..Michael Headrick ... Good to work for people who appreciate the extras.
01/07/2025

Thanks for your kind words buddy..
Michael Headrick ... Good to work for people who appreciate the extras.

Well after sorting out a few problems and rebuilding Daves 103 cube Twin Cam. Replaced the s**t Whispering Sparrow pisto...
01/07/2025

Well after sorting out a few problems and rebuilding Daves 103 cube Twin Cam. Replaced the s**t Whispering Sparrow pistons (machined wrong and broke the top around valve relief) with some high comp .010" over Carrillo items.
We now have 118 Hp and over 120 Ft/Lbs Torque...over 100 at 2100rpm...😎😎Not bad for a Street Wise 103 cube.
Big thanks to Andrew Fred Badcock at Pro Cycle Dyno for once again giving it a brilliant tune...

Just love fitting new belts to Softails..😭😭And then they have a Wide Arse End fitted with swingarm,primary spacer,air su...
26/05/2025

Just love fitting new belts to Softails..😭😭
And then they have a Wide Arse End fitted with swingarm,primary spacer,air suspension and all of the custom fittings that go with it...😭😭😭
When straight forward jobs multiply into hours of great fun...👀👀🍺🍺🥸🥸🥸

Just like to thank Andrew Fred Badcock at Pro Cycle Dyno for going above and beyond to fit one of my projects in today a...
20/05/2025

Just like to thank Andrew Fred Badcock at Pro Cycle Dyno for going above and beyond to fit one of my projects in today at short notice...So much appreciated.
Always great to go to Pro Cycle Dyno.

Address

666 Hells End Road
Childers, QLD
4660

Telephone

+61439484666

Website

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