Two cylinder liners. One from a 27 litre Merlin engine belonging to TA805 - The Spirit of Kent and the other from a 90 size radio controlled model.
Pound coin for scale.
Bore x Stroke: 5.4'' x 6.0'' or 137mm x 152mm
1700 horse power at 3000 rpm on 100 octane fuel (150 octane on later models).
Bore x Stroke: 22.7mm x 24.8mm
3.4 horse power at 15000 rpm on
20% Nitromethane 2 stroke fuel.