SH Engines PT003 Pro .21 8 Port Buggy Engine (Standard Plug)
About this part
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
Reviews3.8 · 4 reviews
Please note this is not a turbo plug, false advertising
Awesome engine runs great easy to tune I would recommend to anyone
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
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
Reviewers of the standard-plug variant of the SH Engines PT003 Pro .21 8 Port Buggy Engine give mixed but mostly positive feedback. Two reviewers praise its performance and ease of tuning, one describing it as keeping pace with comparable .21 marine engines when fitted with a flywheel conversion, carburettor and cooling head. One reviewer rated it 1/5, objecting that it is not a turbo plug despite the listing implying otherwise. One reviewer rated it 4/5 for prompt delivery but could not fit it because their motor mounts were too small. Reviews are few, so the overall picture is limited.
- + Strong performance in marine setup
- + Easy to tune
- + Timely delivery
- − Not a turbo plug as one reviewer expected
- − Motor mount fit issue for one buyer