Goliath

These engines were used in a 1950's German front wheel drive car,

however this one was pulled out of a boat.

 

Specs:

Bore × stroke 74.00mm × 80.00mm 2.91 in × 3.15 in
Bore/Stroke ratio 0.93
Displacement 688 cc(41.984 cu in)
Unitary capacity 344 cc/cylinder
Compression ratio 8.83:1
Fuel system 1 So 30 BFLH carb

Max. Output 25.3 PS (25.0 bhp) (18.6 kW)@4000 rpm
Max. Torque 53.0 Nm (39 lbft) (5.4 kgm)@2000 rpm
Maximum rpm
Coolant water
Specific output 36.3 bhp/litre
0.6 bhp/cu in
Specific torque 77.03 Nm/litre

Pictures supplied by Paul