Axial .32 Spec 1s Racing Engine with Grey Cylinder Head, Pull Starter and SG (pilot) Crankshaft. Direct bolt-in replacement engine for any .21+ engine mount, also accepts most aftermarket shaft drive starting systems.

FEATURES: ABC cylinder construction (aluminum bronze and chrome)
Composite bodied 9mm (including 8.0 & 8.5mm optional venturis)
3-needle slide valve carburetor, factory reset line on       high-speed needle and flush needles make resetting to factory       specs easy SG (pilot) crankshaft with long duration intake
Eight-port cylinder sleeve
High volume transfer port design
Removable button type combustion chamber
Roto-starter available optionally

INCLUDES: Axial .32 Spec 1s Racing Engine with Grey Cylinder Head with pull-starter
One Instruction Sheet
One 8mm Restrictor
One 8.5mm Restrictor

REQUIRES: Glow Plug: Cold heat range
Fuel: 20-30% With at Least 18% Oil Content
Manifold and Tuned Pipe (Depends on Vehicle)

SPECS: Displacement: .32 cu in (5.2cc)
Maximum RPM: 34,000
Bore: 19.5mm
Stroke: 17.5mm
Weight: 450g (15.87oz)
Distance Between Mounting Holes Same Side: 21.10mm (0.830")
Distance Between Mounting Holes Opposite Side: 36.97mm       (1.455")
Height Bottom of Mounting Tabs/Top of Cylinder Head: 97.55mm       (3.84")
Width of Mounting Tabs: 44.98mm (1.770")
Distance from Pull Starter to Front Bearing: 83.38mm (3.28")
Distance from Center of Engine to Front Bearing: 41.69mm       (1.641")
Distance from Center of Engine to Pull Starter: 41.69mm       (1.641")

COMMENTS: Some notes on slide valve and rotary carburetors:
Rotary carbs offer a larger response in the middle of the       power band. This works well for off-road applications when       throttle response must be varied.
Slide Valve carbs provide greater response at the beginning       and end of the power band. This works well for on-road and       racing applications for fast take-offs and high speed.