Factory deep sump oil pan ??

[RALLY]

Originally Posted by Flying Undertaker

No, it is not! The factory deep sump oil pans have only one weld line going around the sump. It is close but not exact. Impala pan modified by owner by adding a strip of metal between the sump and the upper part of the pan.

Exactly. I owned 3 of the factory deep sump pans you could buy over the counter from GM. Yes they had the one weld line as you stated. I sold my factory deep sum pan, factory windage tray and bolts and factory oil pump as a complete package for 1,000 dollars a few years back. Very rare to find all these parts together. Agree that fabricated oil pan is close but not exact.