Looking for some Hemi help...

you cant just swap the lifters. the lifter plastic retainer that keeps the lifters in place and from rotating has different size hole for the mds lifters. Get the retainers from a 04/05 pickup, these years had no mds on the 5.7, also get the mds solenoid plugs from the same. But really no reason to go thru all this unless your stepping up in camshaft lift and duration.