FR7-420 Sirius7 7-Cylinder Radial 4-Stroke Engine

Price: $4,419.99
Sale: $4,364.99
Discontinued Online
This item is discontinued and no longer available for purchase. You may want to search our site for a similar item.
Please be aware that pricing and product availability in-store may vary from what’s available online because each store is independently owned and operated.


Height9.0 in (230mm)
RPM Range1,500-7,000 rpm
Displacement0.607 cu in (9.95 cc) x7
Prop Range22 x 10 - 26 x 8
Width9.0 in (230mm)
Bore0.944 in (24.0mm)
Stroke0.866 in (22.0mm)
Crankshaft ThreadsUNF3/8-24
Recommended FuelAircraft blend 5-10% nitro content with 8-10% lubricant content
Total Weight111.7 oz (3,167 g), 6.98 lb (3.167 kg)
TypeGlow powered 4-stroke 7 cylinder airplane engine
Outer Diameter9" (230mm)
Plug TypeSeven Type F glow plugs

This product was added to our catalog on April 19, 2017