School me on new gen hemis

6.1 oil pumps are commonly used on 5.7 build ups. No spacers needed. It's like putting a high volume pump on the old school engines.

I think people sometimes confuse the term SRT Hemi with 6.1 Hemi, when 6.4 is now entered into the mix. Virtually everything is bolt on interchangeable between the first gen 5.7 and 6.1, whereas the Eagle and Apache engines are quite different from the engines they replaced. Don't get me wrong, as things like combustion chambers and ports are different between the first 5.7 and 6.1, but everything will still bolt up between them...