Streamline Smitten Posted March 1 Share Posted March 1 Will the oil pump from a 1941 346ci work in a 1948 346ci? Link to comment Share on other sites More sharing options...
Tom Boehm Posted March 2 Share Posted March 2 According to the Cadillac Master Parts List Book 1935-1949, the oil pump for 346 is the same for all years 1941-1948. Link to comment Share on other sites More sharing options...
Streamline Smitten Posted March 2 Author Share Posted March 2 Great. Thanks. Link to comment Share on other sites More sharing options...
Stude Light Posted March 3 Share Posted March 3 Just a side note… the original oil pumps used helical pump gears and most new/rebuilt units use straight cut pump gears. My understanding is that it is cheaper to make straight cut gears but they are also a bit less efficient (require more torque for same flow and pressure output). It just adds a bit more stress to the bronze idler gear that drives the pump and distributor. Scott Link to comment Share on other sites More sharing options...
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