I have heard nothing but bad things about those "too small port" 440 Source housings, I would NOT use it even after opening it up...
what have you heard?
Funny how things get twisted around...
440Source tried to clone the Mopar Performance water pump housing, unfortunately in their development tooling/sourcing process nobody checked the internal passages' dimensions....
And the China factory went into full mass production, and 440Source received a full shipment of water pump houisings, once sales started the negative reports started pouring in the Mopar engines were overheating..
Next 440Source was well aware of the problem and gradually modified the tooling by enlarging the internal passages. Unfortunately 440Source was stuck with a pile of the original defective products...
Just my $0.02..
