Euro LS-5 .21 Long Stroke 5-Port Competition Off-Road Engine by ProTek RC (Turbo Plug)

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ProTek RC
Low Price: $199.99
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The ProTek R/C Euro LS-5 is a 5-port long stroke .21 nitro engine perfect for 1/8 buggy, and great for 1/8 truck. It features a lightweight aluminum R7 conrod, 5 transfer ports, larger bore intake crankshaft, high efficiency large cooling head and a heat-resistant slide carburetor with standard venturi compatibility.

On the power end, the LS-5 produces smooth linear power to ensure fuel efficiency is maximized and your tires and dirt work as one. The LS-5 has another side to it though, producing explosive dirt-spraying bottom end torque, all at a triggers notice.

For a "budget friendly" engine, the LS-5 is the perfect option for all your racing and bashing needs. If you need quality, consistent results, and high performance - without breaking the bank - pick up the the ProTek R/C Euro LS-5.



  • Large efficient cooling head
  • Explosive bottom-end power
  • Smooth and linear power band
  • 5 Transfer port design
  • Long stroke
  • Steel bearings
  • Goes braaap!

Recommended Tuned Pipe Manifold: EFRA 9901 with 41021 Manifold

Displacement: 3.49cc.
Bore x Stroke: 16.26mm x 16.80mm
Transfer Ports: 5
RPM (Max Power): 34,000
RPM (Practical Range): 6,000 - 36,200
Rear Ball Bearing Type: 25.8mm Steel
Crankshaft Type: 14mm SG
Carburetor Type: 8mm Slide
Material: Plastic
Adjustment: Single
Glowplug Type: Turbo - CT0 #6
Exhaust Position: Rear 


  • (1) Euro LS-5 Off-Road Engine
  • (1) CTO #6 Turbo Glow Plug
  • (1) High Temp Exhaust Gasket
  • (1) Venturi Set (5.4, 6.0, 6.5 & 7.0mm)
  • (1) Instruction Sheet

This product was added to our catalog on February 3, 2017.

Jeremiah Sensing
Monday, Sep 4 2017 (10 months ago)
ProTek RC Euro LS-5 .21 Long Stroke 5-Port Competition Off-Road Engine
Iíve got a gallon through mine now and not a single complaint. Tons of bottom end power and decent top end. Pretty good on fuel mileage as well. Iíve had faster motors but donít know if Iíve had one that idles this strong after 20 minutes on the track yet. Holds a tune and goes braaap, what more can you ask for 200 bucks.

update 10/11/17. Iíve got 2 gallons through this motor now and my review stands. Itís the best value running for 200 dollar engines. A bit slow to warm up, behaves like a bratty kid until it does, but once itís warm, it rolls out. Holds a tune fantastically well, just donít finger it while itís warming up. Itíll run like crap for 4 to five minutes even with a head heat but then smooths right out and idles for.)
Frederick Perkins
Wednesday, Aug 2 2017 (11 months ago)
ProTek RC Euro LS-5 .21 Long Stroke 5-Port Competition Off-Road Engine
Ok so, I'm really not a nova guy. I love my OS motors. Bought this as a practice motor for my buggy and now it's my main engine! Very smooth power band. Great top end. 10-12 on a tank of fuel and the idle is the most consistent nova idle I have run!)
christopher Gridiron
Verified Owner
Monday, Aug 7 2017 (10 months ago)
ProTek RC Euro LS-5 .21 Long Stroke 5-Port Competition Off-Road Engine
when you buy a motor and you have nothing bad to say about it.. you know the motors the real deal keeping up with os motors where people spend 500 and up on a engine and you can get it for half .. i plan to try the protek os base engine heard it does 14min a tank gotta see if the hype is true lol)
Andrew Morin
Verified Owner
Thursday, Mar 29 2018 (3 months ago)
ProTek RC Euro LS-5 .21 Long Stroke 5-Port Competition Off-Road Engine
Great engine for the $..I bought it for a practice motor but it hasn't came out of my car since...Took awhile to fully break in but now on it's third gallon it's really come alive..smooth, easy to drive and holds a tune perfectly..I've gotten faster/more consistent running a "slower" motor..)