I only use full groove main bearings on all Mopar V8 now, not half or 3/4 grooves tsk
The Chrysler 331 up to the 392 C.I. hemi motors used full groove stock on those large barge motors, that convince me to use them all the time up

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)