This is the Evolution 1.00NX Engine w/Muffler

Features:

• Excellent power with low speed torque—more displacement while having the same mounting dimensions as most .91-size engines
• Quality construction with high-tech appearance
• Turns larger propellers to support larger models
• Easy operation, low idle speed, smooth running
• True chrome-plated sleeve with aluminum piston (ABC)
• Canted glow plug tilts glow driver away from propeller during starts for safer operation
• Set Right needle valves guarantee easy starting and great performance
• Rear needle valve provides safe, easy adjustments
• Dual ball bearing-supported crankshaft extends engine life and improves reliability
• Includes muffler

Overview:
Anyone can make a big bore 1.00 engine with lots of power, but only Evolution can make one that’s simple to tune and a cinch to start. The new Evolution 1.00NX is that engine. It shares the same footprint as a .91 so modelers can apply it’s hassle-free operation and incredible power to most any .60 to .91 airplane and enjoy the kind of spine-tingling vertical performance that’s downright addictive.

Specifications:
Type: 2 Stroke
Displacement: 1.00 cu in
Bore: 1.14 in (29.0 mm)
Stroke: .99 in (25.0 mm)
Cylinders: Single
Total Weight: 28.4 oz or 806 gr
Engine (Only) Weight: 23.4 oz 664 gr
Muffler Weight: 5.0 oz 142 gr
Crankshaft Threads: 5/16x24
Benchmark Prop: APC 14x6 at 11,400 rpm
Prop Range: 13x6-16x4
RPM Range: 1400-13,000 rpm
Fuel: 10% Nitromethane
Mounting Dimensions: 25.2 x 52 mm
Muffler Type: Cast
Cylinder Type: True ABC
# of Ports: 3 + 2 exhaust
Carb Type: Barrel, with two needles
Crank Type: Ball bearing