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Description
SC Engines SC91FS 4-Stroke Glow R/C Aero Engine (Rear Needle)SC Engines SC91FS 4 Stroke Glow R C Aero Engine (Rear Needle) Key Features Easy tune twin needle carburettor. Twin bearing (phenolic) crankshaft. Twin bearing (phenolic) camshaft. Blue anodised rocker cover. Extra safe twin locking propeller nut design. Crankcase breather recirculation. Remote choke lever. Tough & rigid single billet crankshaft. Ultra tough webbed crankshaft housing. Full spares availability. What's in the Box 1x SC 91FS four stroke
- SC Engines SC91FS 4-Stroke Glow R/C Aero Engine (Rear Needle)
-
Key Features
- Easy tune twin needle carburettor.
- Twin bearing (phenolic) crankshaft.
- Twin bearing (phenolic) camshaft.
- Blue anodised rocker cover.
- Extra safe twin locking propeller nut design.
- Crankcase breather recirculation.
- Remote choke lever.
- Tough & rigid single billet crankshaft.
- Ultra-tough webbed crankshaft housing.
- Full spares availability.
What's in the Box
- 1x SC 91FS four-stroke aero engine.
- 1x Exhaust manifold & muffler.
- 1x Allen key set.
- 1x Exploded parts diagram.
- 1x Instruction manual / operating sheet.
Needed to Complete
- 1x Medium / hot glow plug.
- 1x 13x8 to 15x7" propeller.
Product Description
Enjoyed by owners due to their attractive price, easy starting, endearing handling, smooth running and clean throttling, SC four-stroke engines began winning friends from the day they first appeared. Boasting decades of stirling service to the R/C community, SC's exquisitely engineered, jewel-like, single-cylinder overhead valve four-strokes quickly become firm favourites with sport and scale club pilots the world over and now they're back, better than ever. Boasting a twin bearing camshaft, a twin bearing, single billet crankshaft, eye-catching chrome-plated pushrod tubes and an investment cast crankcase, matt finished to a very high standard, these are engines that not only look good but run beautifully, too. Truth is, SC four-strokes are a pleasure to own, a pleasure to operate and, crucially, a pleasure to hear.
Fit a real engine to your latest build and you'll not only be adding authenticity, you'll be adding a touch of class with a hint of nostalgia.
Engine Technical Specifications
Weights & Dimensions
Weight 640g 22.58oz Shipping Weight 0.90kg 1.99lbs Engine Size 0.91 cu. in. Displacement 14.91mm3 Cylinder Bore 27.7mm Cylinder Stroke 24.8mm Recommended Usage Environment Outdoors Colour Silver
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 5
Works great for scent work! Bounce is great for air retrieve!
Size: 2-pack, Style: Duo, Size: 2-pack, Style: Duo
My dog doesn’t know he loves them yet but I do! They are a little softer so when we do air retrieve, I don’t have to worry as much about his teeth! I’m hoping he will learn to find them by smell vs sight. We often play in the evenings and he tends to loose his ball. Love chuck it! Right now, we have about 10 chuck it balls! The tennis balls don’t work for air retrieve! Chuckit does!!! Love the thrower too! Saves my arm!!!!
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Reviewed in the United States on August 6, 2025
★★★★★ 3
I guess the smell is offputting
Size: 2-pack, Style: Duo
My dog loves chocolate stuff. But for some reason, wasn’t a huge fan of these balls. She played with them a little bit, but they’re not her favorite.
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Reviewed in the United States on December 30, 2025
★★★★★ 5
Really indestructible
Color: Yellow
As advertised. I have an obsessed 16lb mixed breed dog that has destroyed everything purchased that says indestructible. Until now... These balls really are indestructible. She loves them and plays with 2-3 at a time. Chews on them and still going. They are the size of regular tennis balls. Others are slightly smaller. These are great and bright... Mooky highly recommends.
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Reviewed in the United States on March 25, 2026
★★★★★ 5
A Dog’s REAL Best Friend!
Color: White, Color: White
This ball is truly my dog’s best friend! It is perfect especially for indoor fetch because it’s lightweight (AKA nondestructive!), has just the right amount of bounce, and cannot be torn up by mild to medium chewers. (We have a labradoodle and she isn’t much of a chewer.) It really is bite resistant, and I have a video to prove it!
Our dog loves the softness of it. We love that we can throw it around the house without it breaking anything. It almost feels like heavy duty bouncy styrofoam that cannot be picked at or bitten up. We bought the pack and are storing a couple of them for when we someday lose them here and there.
I recommend this ball to EVERYone who has a dog and likes to play fetch!
FOFOS, pick us for ads! My doggie is obsessed with your product, and I love taking pics and videos of her using it. She’s the type of dog that walks around with a ball in her mouth for fun and comfort. Think of it as her stuffed animal.
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Reviewed in the United States on December 3, 2025
★★★★★ 5
Great buy!
Color: Yellow
Dogs love them! They chew on the and the are very sturdy!
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Reviewed in the United States on April 20, 2026