Cison V8-440 OHV 44cc Small Block Engine Kit with Metal Base - High Performance DIY RC Model
Hero Section: The Scream of American Muscle
If the Flathead is the sound of cruising, the OHV is the sound of racing. The Cison V8-440 (OHV Version) is a tribute to the legendary "Small Block" engines that dominated the drag strips of the 1960s and 70s. This isn't just a model; it is a 44cc, 4.8-horsepower mechanical beast capable of screaming up to 10,000 RPM. With its iconic orange electroplated finish and complex Overhead Valve valvetrain, this kit offers the ultimate challenge for the builder and the ultimate thrill for the operator. It comes as a Full Set, complete with a metal base, radiator, and fuel tank, ready to turn your workbench into a dyno room.
Why Choose the Cison V8-440 OHV Full Set?
- High-RPM Performance (10,000 RPM): Unlike its low-revving cousins, this OHV version is built for speed. With a redline of 10,000 RPM and approx. 4.8hp, it delivers a visceral, high-pitched V8 roar that is unmatched in the scale model world.
- Complex OHV Mechanics: This engine features a true Overhead Valve system. You will assemble the camshaft, pushrods, and rocker arms, gaining a deep understanding of how high-performance engines breathe. Watching the rockers dance under the valve covers is a mesmerizing mechanical show.
- Complete "Ready-to-Build" Package: No need to hunt for accessories. This "Full Set" includes the engine kit, a heavy-duty metal display base, a functional radiator, and fuel tanks. It is a complete ecosystem ready for assembly and operation.
- Chevy-Inspired Aesthetics: Finished in a stunning, heat-resistant electroplated orange, this engine captures the visual soul of the classic Chevrolet Small Block. It is a centerpiece that demands attention.
Technical Highlights: Engineering Masterclass
- Forced Lubrication System: High RPMs require serious protection. The V8-440 OHV features an independent lubrication system with an oil sump and a rocker arm forced lubrication design. Oil is pumped up to the cylinder head to lubricate the rockers before returning to the block, ensuring longevity under load.
- Precision 5-Axis CNC: The cylinder block is machined with 0.005mm repeatability. This aerospace-grade precision ensures that the 5-point supported crankshaft and reinforced connecting rods operate smoothly even at high speeds.
- Double-Layer Water Pump: To handle the heat of 4.8 horsepower, the engine is equipped with a high-efficiency gear water pump. Combined with the included radiator, it ensures stable thermal management during extended runs.
- High-Angle Camshaft: The cam profile is designed for performance, featuring a high lift and large intake valves to maximize airflow at high RPMs.
Specifications
- Brand: CISON
- Model: V8-440 (OHV Version)
- Type: DIY Assembly Kit (Full Set)
- Valve Mechanism: OHV (Overhead Valve)
- Displacement: 44cc (8 x 5.5cc)
- Bore x Stroke: 18.5mm x 20.5mm
- RPM Range: 1500 - 10,000 RPM
- Power Output: Approx. 4.8hp
- Cooling: Water-Cooled (Radiator Included)
- Lubrication: Independent Sump + Rocker Arm Forced Lubrication
- Ignition: Distributor + High-Performance CDI (42000Hz)
- Fuel: 92# Gasoline or higher
- Oil: 10W50 2T Engine Oil
- Starting Power: 6-12V (2S-3S LiPo Battery Recommended)
- Dimensions: 14 x 9.3 x 10cm
- Weight: 1700g
What's in the Box (Full Set):
- 1x Cison V8-440 OHV Engine Kit
- 1x Metal Display Base
- 1x Radiator & Fan Assembly
- 2x Fuel Tanks
- 1x Instruction Manual
Usage Scenario: The Dyno Test
You’ve spent the weekend assembling the intricate valvetrain. Now, the engine sits mounted on its metal base, coolant lines connected to the radiator. You flip the ignition switch and engage the starter. The V8 fires instantly, settling into a choppy, aggressive idle. You blip the throttle, and the engine responds instantly, the RPMs climbing to a scream. The rocker arms are a blur of motion. It’s raw power, contained in metal, built by your own hands.
Important Tips from the Workshop
- Valve Lash Adjustment: Since this is an OHV engine, setting the correct gap (lash) between the rocker arms and valves is critical for performance. Follow the manual precisely during assembly.
- Oil is Life: This engine revs to 10,000 RPM. Ensure the oil sump is filled with high-quality 10W50 oil and check the level frequently. The forced lubrication system must be primed before the first high-speed run.
- Cooling System Bleeding: When filling the radiator, ensure all air bubbles are removed from the lines. An airlock can prevent the water pump from circulating coolant, leading to overheating.
- Break-in: Do not rev to max RPM immediately. Run 2-3 tanks of fuel at low-to-mid RPM to allow the piston rings and bearings to seat properly.
Customer Support
We are dedicated to supporting your high-performance build. If you need assistance with valve timing, tuning, or spare parts, please contact our expert support team at service@helloworld7.com.
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