Alpha Performance Engines

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Alpha Performance Engines

We will work with you to get the best results for your budget.
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We have been building performance engines for Harley-Davidson motorcycles for 15 years and have seen the need for Kits to suit the Riders needs not just a one size fits all approach.

19/06/2026

Another strong result from Simon at Jobson Motorsport 👌

Steve’s 2024 Street Glide CVO putting down an impressive:

🔥 160.57 HP
🔥 168.15 TQ

Combination includes:
• Screamin’ Eagle 135 cylinders & pistons
• APE/CR 515 cam
• APE Billet 60mm intake manifold
• APE billet tappet cuffs
• APE high output lifters
• APE pushrods
• SP Concepts 2-1 exhaust
• Dynojet PV3 tuning

A great example of what the APE/CR 515 is capable of in a well thought out street combination. Massive torque, strong horsepower and exactly the sort of powerband that makes these big baggers an absolute weapon on the road.

Built & tuned by Simon at Jobson Motorsport 👊

18/06/2026

Another APE Talon Fat Boy on the dyno today. 🔥

I won’t post the results though… apparently you can’t make this sort of power from a factory 117” with nothing more than a cam swap and bolt-on parts 😏

16/06/2026

SAE dyno sheet ✔️
10-second time slip ✔️

Factory 117” 2026 Fat Boy.

APE Basic Cam Kit, APE/CR484 Magnum Cam, APE Stainless Exhaust, Screamin’ Eagle Extreme Air Cleaner and Dynojet Power Vision Tune.

🏁 10.8 @ 120mph
📊 140Hp SAE

Full weight. Factory tyres. Foot shifted. No strap.

Four consecutive 10-second passes from a bike with little more than a cam, exhaust and tune.

The Gen 2 Milwaukee-Eight platform is proving to be something special. Genuine 10-second street bikes are becoming a reality with remarkably simple combinations.

15/06/2026

Big cube. Pump fuel. No compromises.

Ray’s 148ci Breakout is a perfect example of what happens when every part in the combination is selected with a clear goal in mind.

Over 200 horsepower and nearly 200 ft-lbs of torque on pump fuel, backed by a broad, usable powerband that delivers everywhere in the rev range.

Build Spec:
• 12:1 static compression
• S&S Cycle, Inc. MK-Series cases
• Darkhorse Motor Company 4 5/8” stroker flywheel
• APE 4.500” pistons & cylinders
• APE CNC ported Gen 1 heads (+2mm valves)
• Cycle Rama Inc CR590 cam
• SE 64mm throttle body & 65mm intake manifold
• 8.2 g/s injectors
• Heavy Breather Extreme air cleaner
• Burns Stainless NHB 2-1 exhaust

📊 Dyno Results
• 202.62 HP / 196.04 TQ STD
• 198.35 HP / 191.93 TQ SAE

These numbers aren’t the result of one magic part. They’re the product of a well-engineered combination, quality machining, careful assembly and precise tuning.

Big-inch Harley builds are a serious investment, but when done properly, the results speak for themselves. 💪🔥

11/06/2026

The Cycle Rama Inc CR470 is a very underrated cam!

Tested in a completely stock 2026 Breakout 117” with stock cylinder heads, throttle body, manifold and injectors, the results once again reinforced that smart cam timing and duration matter more than simply chasing lift numbers.

✅ Massive increase in usable power
✅ Strong torque throughout the rev range
✅ Excellent street manners
✅ Simple, reliable combination

The dyno sheets continue to speak for themselves 📈🔥

APE CR470 Basic Cam Kit Special

🔧 CR470 Camshaft
🔧 Cam Bearing
🔧 High Performance Lifters
🔧 APE Adjustable Pushrods
🔧 Cam Install Gasket Kit

💰 RRP $1390
🔥 SALE PRICE $1190 AUD 🤘

10/06/2026

🔥 Not your average Low Rider ST… 🔥

A little sneak peek at what’s coming together for Simon’s personal Low Rider ST.

💥 153ci Milwaukee-Eight
⚙️ 4.600” Bore x 4.625” Stroke
🤝 Collaboration between APE & Jobson Motorsport .

When a 131 just isn’t enough 😅

This one is being built with a single goal in mind - big horsepower, massive torque, and a whole lot of fun. Stay tuned for updates as this monster comes together. 👊🔥

09/06/2026

🔥 APE/CR484 Doing What It Does Best 🔥

Another happy customer and another Gen 2 117” responding exactly as we’d expect to the proven APE/CR484 camshaft.

💥 +32 HP
🎶 Great exhaust note
🏍️ Stronger performance right across the rev range

Build Specs:
• 2025 Road Glide 117” Gen 2
• APE/CR484 Camshaft
• SPC Lane Splitter 2-1 Exhaust
• Tuned by MadLad Solutions

Huge thanks to Matt at Those Dyno Guys for the continued support and for sharing the results.

The CR484 continues to prove itself as one of the most versatile camshafts available for riders chasing strong horsepower, excellent torque and real-world rideability.

07/06/2026

2026 Gulf Western Oil Winternationals!!

Sam is having a killer weekend on his new build!!

All motor 131ci - @9.4 @ 141mph 🦍🚀

You'd be hard pressed to find a quicker stock case bore M8..

Very nice riding mate.

05/06/2026

🔥 APE EOFY SPECIAL – 15% OFF 🔥

Milwaukee-Eight 128ci Big Bore Kit

Take your factory 114” or 117” M8 to 128 cubic inches 💪

Designed to suit Gen 1 & Gen 2 Milwaukee-Eight engines.

Kit Includes:

• 4.250” Wrinkle Black cylinders with highlighted fins
• Custom Black Edition APE pistons – multiple compression options
• Cometic MLS head & base gaskets

⚙️ BLACK EDITION APE PISTONS – BUILT FOR PERFORMANCE

• ArmorX coating on crown, ring grooves & pin bore for maximum durability
• ArmorFit skirt coating to reduce friction & engine noise
• Compression ratios: 11:1 & 11.5:1
• Oversized valve reliefs to accommodate +2mm valves & high-lift cams
• Increased compression height, often eliminating the need for cylinder machining to achieve close to zero deck height
• Premium piston rings included

RRP $1890 AUD
🔥 EOFY Sale Price: $1606.50 AUD 🔥

Limited stock available. Once they’re gone, they’re gone. 👊

https://alphaperformanceengines.com.au/shop/uncategorized/ape-128ci-big-bore-kit-with-highlighted-fins-black/

03/06/2026

🔥 APE EOFY BASIC CAM KIT SPECIAL 🔥

Everything you need for a straightforward Milwaukee-Eight cam upgrade at an unbeatable price.

✔ Your choice of camshaft:
• Cycle-Rama CR470
• T-Man Performance 216
• Comp Cams 222
• Comp Cams 234A

✔ High Performance Lifters
✔ Cam Bearing
✔ APE Adjustable Pushrods
✔ Cam Install Gasket Kit

Whether you’re chasing stronger torque, improved rideability, or more top-end power, we’ve got a cam option to suit your riding style.

Not sure which cam is right for your combo? 📩 Send us a DM or 📧 email us and we’ll point you in the right direction.

💰 RRP: $1,390 AUD
🔥 EOFY SALE: $1,190 AUD

Limited time only..

Address

Gladstone, QLD

Telephone

+61429801999

Website

http://www.alphaperformanceengines.com.au/

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