Hyper Head 91SX-H

Brand: OS Engines

Part Number: X-OS72001000

£70.29 Web Price RRP £73.99

Shadow stock: Usually ships within 2 days

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Improved cooling and
a significant weight
saving are the
hallmarks of this
precision machined
cylinder head. Modern
helicopters with
cooling fans designed
for higher revving 61s are often insufficient for
the slower revving Max 91SX-H, so here's a little
help from O.S!

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