This is the Underhead for the HPI Nitro Star S-25 Engine.
This mounts underneath the cylinder head and the mounts to it.
This can also be called a Head Button.
FEATURES: Aluminum Construction
Silver in Color
CNC Machined
Drilled For Cylinder Head Screws
INCLUDES: One S-25 Underhead
REQUIRES: Assembly onto Vehicle.
SPECS: Diameter: 1.3" (33mm)
Thickness: .10" (2mm)
Thickness at Hole: .28" (7mm)
JiM 10.16.03
ir/jxs
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