440 & Hemi oil pump difference?

[TetanusShot]

From a bit of reading online, it looks like the Hemi used the same oil pump as the 440, but with a stiffer pressure relief spring. Is this true?

I have a perfectly good low mileage 440 pump I want to use on my 484 Hemi.

 

[gkent]

Go for it. You can shim the spring with a washer.

 

[tonysrt]

The pump and relief spring are the same, 440 & Hemi. I have a 472 hemi and have 70psi when warm and about 1500 rpm.

 

[Cranky]

Open it up and check the rotor for scoring and make sure you have .002" minimum face clearance.

 

[PurpleBeeper]

Yep, same pump

 

[hangn0ut]

Only real difference can be the price of a new one. Hemi anything seems to bring 40% increase in price even though its the same part.