#1406 - NITRO STAR S-25 ENGINE WITH PULLSTART
Composite Slide Carb./Aluminum Heat Sink Head/Rear Exhaust
Discontinued
Standard Parts | Optional Parts
Available now from HPI Racing is our Nitro Star S-25 engine!
This powerful new engine has 20% more displacement than our Nitro
Star 21BB engine!
The Nitro Star S-25 is a .25 cubic inch (4.1cc) big block engine
that features a machined billet aluminum heatsink head for extra
cooling, dual bushing aluminum connecting rod, true ABC chrome
sleeve construction for durability, and a simplified dual needle
7mm slide carburetor for easier tuning with a composite body for
better performance at higher temperatures.
Please see our Roto
Start Compatibility Guide to find the right Roto Start system
for this engine.
Click to download PDF instructions (1.5 MB)