Features:

.Introduction: The HOWIN team recently unveiled the L4-172, a miniature inline four-cylinder four-stroke engine model that exhibits a powerful engine production attitude. It is based on early, extensively used real automobile engines that are perfectly styled and aesthetically pleasing, and it reproduces the grace of full-size cars in scale models. Every effort has been made, including the scale and appearance of the engine, to retain a high level of performance that can deliver incredible power to RC cars and ship models. The inline four cylinders, camshafts, and rocker arms all convey a sense of realism.

.The L4 engine, which has an overall compact structure and is primarily adorned in silver and black for a high-end ambience, represents a collision of vintage classics and contemporary gear.

adopts an increasingly precise valve opening/closing system, alloy rocker arms, an independent intake/exhaust design, and a SOHC valve mechanism.

Built with a single carburetor with an adjustable valve for simple adjustment and more responsive throttle response.

The engine sounds powerful and deep like a racing car thanks to the integrated metal stainless steel intake pipe and exhaust pipe.

The integrated and reinforced crankshaft, which has five points of support, makes sure that it has enough strength and won't easily flex during high-speed operation.

Utilizes the external centrifugal water pump and the cooling mode of direct contact between the outside wall of the wet cylinder liner and coolant for heat dissipation with water drainage to increase operating time and life.

.Due to the 480 brush motor and convenient electrical starting, it has a smooth idle and a high speed up to 15000 rpm like a small violent beast.

The piston ring is made of nodular cast iron, and the cylinder block and crankcase of the cylinder head are produced by aluminum alloy CNC. All parts of the model are made of carefully chosen materials, and they are colored through anodic oxidation after sandblasting.

.The inline four-cylinder engine's rocker arms, camshaft, and crankshaft are precisely manufactured with tight tolerances to provide a constant output.

.The high-performance engine will live up to the expectations of many model aficionados with its realistic scale, dependable start, and constant power, giving an impressive & authentic model for nostalgic lovers and collectors.

Includes 1 engine, 4 glow plugs, 1 ignition, 4 M4 screws for assembly and fixing, 1 instruction manual, and 1 optional engine base. Instructions: 1. The fuel tank, fuel lines, water cooling kits (radiator and water tank), and batteries must all be set up or purchased.

2. Fuel oil specifications: 20–25% Nitro Finished Fuel Oil. Later, you can update to use gasoline fuel by purchasing the gasoline conversion kit.

3. Limited one-year guarantee and after-sales service. Please don't hesitate to get in touch with us if you need assistance or advice on the product you're using.

Specifications:

.Material: Metal
.Brand: HOWIN ENGINE
.Item No: L4-172
.Form: Finished Version
.Type: Nitro Internal Combustion Engine
.Valve Mechanism: SOHC
.Displacement: 17.2cc (4×4.3cc)
.Cylinder: Inline Four-cylinder
.Stroke: Four-stroke
.Cylinder Diameter: 18.00mm
.Stroke: 17.00mm
.Rotational Speed: 3000-15000rpm
.Power: 2.4ps@13000rpm
.Cooling Mode: Water Cooling
.Lubrication Method: Splash Lubrication (Regular lubrication: add grease on the cam)
.Ignition Method: Ignition Modules (Included)
.Glow Plug Type: No.5 Four-stroke Electric Plug (*4, included)
.Starting Mode: Electrical Starting (With 480 Brush Motor)
.Starting Power: 12V/3S Li Battery (Not Included)
.Fuel: 20-25% Nitro Finished Fuel Oil (Not Included)
.Product Dimensions: 15.2 x 10.1 x 10.6cm
.Product Weight: 1200g
.Package Dimensions: 18 x 18 x 18cm
.Package Weight: 1500g
.Packing: Graphic Carton
.Ages: 14+