This is a Velocity Stack used on the US Engines 25cc, 35cc and 41cc engines.
This stack mounts on the Walboro carb, extends out beyond the cowling,
and can be rotated forward for better air induction.
Will work also on the Fuji Imvac 32, and 50 size engines.
FEATURES: All aluminum stack and mounting ring
Adds detail quality to the aircraft
Forces air to the carb for better induction
INCLUDES: One Aluminum stack (OD 25mm (1-1/16") x ID 18mm (3/4"))
angled end (low side 26mm (1") x tall side 36mm (1-7/8"))
One Aluminum stack ring (OD 38mm (1 1/2") x ID 22mm (7/8")
Two #10 lock washers
Two #10-24 x 2" caphead mounting bolts
10/15/2 LJ
Click here for Units of Measure Conversion Calculators
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