REDS 521 GTS Pro Tuned Gen3 3.5cc (.21) On Road Nitro Engine

The REDS 521 GTS Pro Tuned Gen3 3.5cc (.21) On Road Nitro Engine is designed for 1/8 on-road racing applications. Pro-tuned by Mario Rossi, it features a high-strength steel crankshaft, optimized porting, an advanced cooling system, precision-machined internals, and performance ball bearings.

Features

• 3.5cc (.21) displacement
• Pro-tuned by Mario Rossi
• High-strength steel crankshaft
• Optimized porting design for smooth acceleration and throttle response
• Advanced cooling system
• High fuel efficiency
• Precision-machined internals
• Performance ball bearings
• Designed for 1/8 on-road racing applications

Specifications

• Displacement: .21 cu.in (3.5cc)
• Recommended Application: 1/8 On-Road
• Bore: 0.64in (16.2mm)
• Stroke: 0.67in (16.9mm)
• Output: -
• Intake Ports: 5
• Exhaust Ports: 1
• Practical RPM: -
• Weight: 12.17oz (345g)

Includes

• (1) 521 GTS Pro Tuned Gen3 3.5cc (.21) On Road Nitro Engine