The SH PT003 Pro .21 8 Port Buggy Engine delivers sport-grade performance with a 3.49cc displacement and a powerful 2.50 HP output, capable of reaching up to 34,000 RPM. Its 8-port design ensures efficient fuel flow and aggressive acceleration, while the low center of gravity (LCG) head features detailed milling and an integrated, patented thermal sensor for real-time plug temperature monitoring. Equipped with a composite 2-needle carburetor and interchangeable 6.5mm and 7.0mm venturis, this engine offers tuning flexibility to suit various track conditions. Lightweight at just 339g and complete with an SH air filter and R4 plug, it’s a high-value choice for competitive off-road racers.
Features:
- Composite 2 Needle Carb with 6.5mm and 7.0mm venturis
- LCG head design for the engraving, milling cutting and patented thermal sensor
- Includes SH air filter and R4 plug
- Patented thermal sensor to measure the plug temperature directly from the cooling head
Specifications:
Cubic Capacity:3.49cc
Bore:16.27mm
Stroke:16.75mm
RPM: 34000
Power:2.50 HP
Weight:339g
This product was added to our catalog on June 29, 2016
rasheed singh Verified Owner Saturday, Jul 26 2025 (2 months ago) SH Engines PT003 Pro .21 8 Port Buggy Engine (Standard Plug) Please note this is not a turbo plug, false advertising Corey Cheney Verified Owner Thursday, May 4 2023 (about 2 years ago) SH Engines PT003 Pro .21 8 Port Buggy Engine (Standard Plug) Engine has been amazing in my boat, I use a Nova Rossi flywheel conversion kit, a novarossi rotory marine carb and the water cooled head off of thunder tiger 18 fit on it perfect this keeps up with any other CMB or Nova Rossi 21 on the water very impressed Eric Garza Verified Owner Saturday, Mar 27 2021 (about 4 years ago) SH Engines PT003 Pro .21 8 Port Buggy Engine (Standard Plug) I obtained the engine in a timely fashion and as planned but I cant use the engine because the motor mounts I have are to small any suggestions View all reviews
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