Radiator hose.
Slant 6 are different than V8s
V8s (small blocks)
Upper hose enters from passenger side (all years IIRC)
pre 70 the water pump exits on the drivers side (timing mark is visible from the passenger side) cast iron water pump, different timing cover, bolt on timing mark (except 69 where it is integrated but on the pass side), different accessory brackets than 70 up
70 up the water pump exits on the passenger side (timing mark is visible on the drivers side) Aluminum water pump, different timing cover, integrated timing mark, different accessory brackets than pre 70
69 down cast iron water pump
70 up AL water pump
69 Timing cover
68 down with bolt on pass side timing mark
70 up timing cover
65 V8
67 - 69 V8
70 up V8
Slant 6 are different than V8s
V8s (small blocks)
Upper hose enters from passenger side (all years IIRC)
pre 70 the water pump exits on the drivers side (timing mark is visible from the passenger side) cast iron water pump, different timing cover, bolt on timing mark (except 69 where it is integrated but on the pass side), different accessory brackets than 70 up
70 up the water pump exits on the passenger side (timing mark is visible on the drivers side) Aluminum water pump, different timing cover, integrated timing mark, different accessory brackets than pre 70
69 down cast iron water pump
70 up AL water pump
69 Timing cover
68 down with bolt on pass side timing mark
70 up timing cover
65 V8
67 - 69 V8
70 up V8