radiator

The revised Chevrolet 235 and 261 high pressure inline six cylinder engine (1955 through 1962) was given a much better cooling system than prior years. This was due to a big change in the water pump and how it attached the front of the engine block. The prior 216 and early 235 design pulled coolant out of the engine block...

This tip came from a radiator repairer who told us one of the most frequent causes of radiator tube blockage is the excessive use of silicone rubber for water pump and thermostat gaskets.

  With the introduction of the new small block V-8's in 1955 Chevrolet trucks, modified sheet metal was created to help in cooling. The new truck design came standard with the proven 235 inline six cylinder but when an optional V-8 was added, cooling modifications were necessary. The short length V-8's cooling fan was too far from the radiator and...