Well, after getting new ARP Rocker Arm stud kit #144-7201 (Mopar Small Block), these studs are too short!... they will be returned... package indicates "318-360 Magnum"... so, the web-sites need to clarify this... as they will not work with the LA engines, (especially not with the Hughes shaft assembly). We are ordering from another supplier studs that are 1/2" longer than the Hughes studs, and with center hex.

Will let you know again with an update.

Mopar Mitch "Road racers and autocrossers go in deeper and come out harder!"... and rain never stops us from having fun with our cars... in fact, it makes us better drivers! Check out MOPAR ACTION MAGAZINE, August 2006 issue for feature article and specs on my autocross T/A!