its a OEM impeller but sized for the SS drop in plate that is mated for a kit. Its all about proper tolerances for impellers to pump / flow correctly as well

Do you have the kit #. Can I just buy the right impeller or is it not sold separately?
Do you sell this item. Give me a phone #.

the info why some of these drop in kits do not work correctly. I have posted this info years ago up here

For one you have a stock sized housing and matched stock sized OEM impeller

then one drops in a SS plate into the housing taking up space

then one drops in a stock sized OEM impeller

This is Not going to work correctly as the SS plate has taken up space within the impeller housing so the IMPELLER is too tall and its jammed and crammed too much in the housing.

Like I said tolerances are the upmost important for flow and volumes. when it comes to impellers and the housing they sit / spin in

Again a stock sized OEM impeller does not work correctly when one drops in a SS plate in the stock sized housing.

Thank thank you for the clarification it is appreciated 🙃