Alpha Performance Engines

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Alpha Performance Engines We will work with you to get the best results for your budget.

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.

How far can the APE/CR485 really go? Apparently, a very long way… 🔥Arron’s R&D bike from Coops Custom Cycles:💥 300 HP / ...
20/10/2026

How far can the APE/CR485 really go? Apparently, a very long way… 🔥

Arron’s R&D bike from Coops Custom Cycles:

💥 300 HP / 277 FT-LB!!

This is a factory 117” with a Gen 2 head swap, running our APE/CR485 - one of the most versatile bolt-in cams on the market.

During the development and stress testing of the LMF Turbo Kit, this combination completed more than 240 full-load dyno runs across 3–18 psi, along with steady-state torture testing and plenty of daily street use.

Above 10 psi, it really started to wake up, with absolutely no sign of slowing down.

They ran out of conrod before they ran out of turbo or camshaft… 😮‍💨

🔧 LMF Turbo Kit
🔧 APE/CR485 Cam
🔧 APE VTP Billet Intake Manifold
🔧 Impact Wiring Solutions ECU with Flex Fuel
🔧 Arron’s 400 HP+ “Daily Rider” Fuel System with integrated controller

Built, developed and tuned by Arron at Coops Custom Cycles.

Massive effort from all involved.

19/10/2026

Throwback to our 2024 Talon Road King series 🦅

#10 of #10 received a little extra treatment..making over 180 HP and running a 10.5 @ 131 mph in full street trim 🔥

And how good does it sound through the Fuel Moto Contender XL exhaust!

🔥 APE 131” BOLT-ON KITS 🔥Take your factory 114” or 117” Milwaukee-Eight out to 131ci..with no case machining required 👊✅...
19/10/2026

🔥 APE 131” BOLT-ON KITS 🔥

Take your factory 114” or 117” Milwaukee-Eight out to 131ci..with no case machining required 👊

✅ Screamin’ Eagle 4.310” cylinders
* Cast-in-place, high-strength steel liners
* 120,000 PSI tensile strength—three times stronger than cast
✅ Custom APE pistons manufactured by CP-Carrillo
✅ Choice of 11.0:1, 11.5:1 or 12.0:1 compression

Each kit includes pistons, cylinders, MLS head gaskets and base gaskets.

💥 $3100.00 AUD

2026 Low Rider ST build from the team at Central Coast Harley-Davidson🔥The Olive Green with chrome trim is a seriously n...
16/10/2026

2026 Low Rider ST build from the team at Central Coast Harley-Davidson🔥

The Olive Green with chrome trim is a seriously nice combination, and the whole bike has been tastefully put together for touring and performance.

We love seeing the APE 2-into-1 Exhaust included in the build list too.. how good does it look on this bike! 👌

Congratulations to the new owner, and great work by the team at Central Coast Harley-Davidson.

We’ve been sitting on a few ideas for quite a while… and the prototypes have quietly found their way into the HCHD demo ...
15/10/2026

We’ve been sitting on a few ideas for quite a while… and the prototypes have quietly found their way into the HCHD demo fleet 👀

This 2026 Low Rider ST was one of the guinea pigs, producing 140+ HP/TQ and it’s now found itself a new home.

The dyno numbers are one thing, but the real test is how they ride. Two customers who rode the demos have already asked for the exact same treatment in their new Breakouts… We’ll try our best to make that happen.

There are still a couple in the HCHD demo fleet, so come in and try one for yourself.

Then it’s off to the track to back up those dyno numbers.

TALON PERFORMANCE 🦅Across the 2025 Talon Breakout and 2026 Talon Fat Boy programs, we’ve now completed 40 bikes..and eve...
14/10/2026

TALON PERFORMANCE 🦅

Across the 2025 Talon Breakout and 2026 Talon Fat Boy programs, we’ve now completed 40 bikes..and every one has produced 140+ HP SAE.

All running the same simple, proven combination: factory 117”, APE Basic Cam Kit with APE/CR484 cam, Screamin’ Eagle Extreme Air Cleaner, quality exhaust and tune.

The Talon Fat Boy has now backed up the dyno sheet at the track:

🏁 10.80 at 120 mph
🏁 Four consecutive 10-second passes
🏁 Full street trim and factory tyres
🏁 Foot shifted with no strap

The consistency across all 40 builds has been exceptional. Genuine, repeatable performance, not a one-off dyno number.

Dyno sheets are good. Time slips are better. 🏁

The latest cam from Cycle-Rama has landed 🔥The all-new Titan M8 cam is now in stock at APE - a true bolt-in grind design...
12/10/2026

The latest cam from Cycle-Rama has landed 🔥

The all-new Titan M8 cam is now in stock at APE - a true bolt-in grind designed for both Gen 1 and Gen 2 Milwaukee-Eight engines.

We’re looking forward to installing this one in a few different combinations and putting it to the test.

Stay tuned for results 👀

🔥 APE/CR485 BASIC CAM KIT 🔥Our all-time favourite bolt-in cam continues to deliver.. now proving itself in the Gen 2 pla...
10/10/2026

🔥 APE/CR485 BASIC CAM KIT 🔥

Our all-time favourite bolt-in cam continues to deliver.. now proving itself in the Gen 2 platform.

This 2025 factory 117” Gen 2 produced:

✅ 142.9 HP / 136.7 TQ SAE
✅ Strong torque from low RPM
✅ Broad, flat midrange
✅ Carries horsepower beyond 6000 RPM
✅ Excellent street manners

Originally developed as a high-performance bolt-in grind for the Gen 1 factory 117”, the CR485 delivers equally impressive results in the Gen 2 engine.

The APE/CR485 Basic Cam Kit is the perfect package for riders chasing serious performance without opening the top end.

Proven cam. Broad power. Outstanding results. 💪

🔥 CR470 STUMP PULLER PACKAGE 🔥The Cycle-Rama CR470 was one of CR’s early Milwaukee-Eight grinds.. and remains one of the...
08/10/2026

🔥 CR470 STUMP PULLER PACKAGE 🔥

The Cycle-Rama CR470 was one of CR’s early Milwaukee-Eight grinds.. and remains one of the most underrated and versatile cams in the range.

It’s a strong mid to top-end bolt-in cam for a factory 114/117, but really comes alive when you add cubic inches and compression.

Throwback results from our 128” Stump Puller:
• Stock Gen 1 heads
• CR470 cam
➡️ 143 HP / 150 TQ SAE

APE 128” Stump Puller Kit + CR470 cam

RRP: $4,190
🔥 10% OFF — $3,771 parts only

🔥 APE/CR483 Gen 2 Results! 🔥Blake Maxwell’s brand-new 2026 117HO Low Rider ST, built by the team at Bunbury Harley-David...
06/10/2026

🔥 APE/CR483 Gen 2 Results! 🔥

Blake Maxwell’s brand-new 2026 117HO Low Rider ST, built by the team at Bunbury Harley-Davidson and tuned by Arron from Coops Custom Cycles using Power Vision.

📊 136 HP / 142 FT-LB

🔧 Combo:

• APE/Cycle-Rama CR483 cam
• SP Concepts 2-1 Big Bore with ProFlo headers
• S&S round air cleaner

The CR483 and SPC combo delivered a killer power curve:

• 130+ FT LB from 2,000 rpm
• 140+ FT LB at 4,250 rpm
• Horsepower carrying all the way to 6,000 rpm

Strong torque down low with plenty of horsepower up top💪

Very nice work from all involved.

Address

Gladstone, QLD

Telephone

+61429801999

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