[WWlll]

With this engine is the oil pump of an internal or external design.If external is it designed like the 78 coupedeville with the oil filter screwed on the pump

 

[carnut]

Internal, driven by the gear on the distributor. You really need a factory service manual. Your brake issue and oil pump question would have been answered.

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And I see your signature still does not list your year and type of Cadillac? Look at mine as an example and go into editing your profile to add the year and model.