Tekno RC BLOK 21aM .21 Competition Buggy Engine

Tower Stock# TKRC1710  •  Manufacturer Stock# TKR1710
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Notes from our tech department:
This is the Tekno RC Blok 21aM .21 Competition Buggy Engine.


Ideal for 1/8 scale offroad buggies, also compatible with truggies if
a smoother power band and extended fuel mileage is desired
DLC coated crankshaft
Long stroke piston and sleeve design
Three needle slide valve carburetor
Turbo type inner head
Ninety day limited warranty through Tekno RC beginning at date of


Tekno RC Blok 21aM .21 Buggy Engine with 6 and 6.5mm Carb Venturi,
P3 Glow Plug
Exhaust Seal Ring
One each; 3mm, 16mm & 18mm Dust Caps
Instruction Manual


Glow Fuel: Car blend, 30% nitro recommended
Exhaust System: O.S. T2090 or T2060 tuned pipe recommended
Air filter, glow starter and track equipment


Displacement: 0.213 cu in (3.49 cc)
Bore: 0.64" (16.27mm)
Stroke: 0.661" (16.8mm)
Output: 2.55 ps / 2.59 hp @33,000 RPM
Practical RPM: 4,000-40,000
Weight: 12.77oz (362g)
Distance/Mounting Hole Centers Same Side: 0.83" (21mm)
Distance/Mounting Hole Centers Opposite Side: 1.45" (37mm)
Width of Crankcase below Mounting Tabs: 1.2" (31.6mm)
Width of Mounting Tabs: 1.8" (45mm)
Height/Mounting Tab to top of Cylinder Head: 3.3" (84mm)
Height/Mounting Tab to center of Exhaust Outlet: 1.1" (28.5mm)
Height Crankcase Bottom to top of Cylinder Head: 3.4" (86.5mm)
Length of Crankshaft end to Front Bearing: 1.2" (29.5mm)
Length of Crankshaft end to Backplate: 3.7" (94mm)
Length of Crankshaft end to Center of Crankcase: 2.9" (73.5mm)

jxs 02/23/17



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