I ordered an E-bay set of block hugger headers. That they Claim are built for the 5.0 explorer with P-heads.
I have little confidence that it will fit.
But commercial seller is sure. And will accept the return. If it does not fit.
This stainless header set will not flow as well as TM style headers. But has to be better than stock 2001 5.0 p manifolds.
At $169 I just have to see what they claim will fit an explorer 5.0
Will let you know what arrives on the third