Originally, no coolant recovery system. A completely filled properly operating cooling system would blow out some coolant as it expanded when the engine warmed up and would be down an inch or so when it cooled down. If you are not worried about originality, a recovery system is a good idea.
'57 GMC 102, Original 347 V8, HydraMatic, 3.08 rear gear, added A/C, disk front brakes, HEI, AFB carb, '98 Honda Black Currant paint. T-boned and totaled 10/12
'52 GMC 152 Stake Bed, Original 228, SM420, added A/C, HEI, disk front brakes, '67 Chev 3.55 rear gear. Gets used as a real truck.
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