Fueling & Injection - LT1 and LS1 Fuel pump differences

I have been having some issues with the pump in my 1994. A buddy of mine gave me his factory pump out of his LS (could be a 98) car to try. I noticed the pump has a nipple on the top, which I do not recall my factory 94 pump having.

Will this pump work for me? I am not against cutting up my bucket if needed.

From my understanding there is no bucket in LT1 and early LS1 gas tanks, because they have baffled gas tanks.

I have a bucket that has to be taken apart in my car.

Apparently in another thread someone told lies.

The LT1 does have a bucket.