[tonycarreon]

randall:

i had the exact same "questions" once i received mine. i kept wondering what would happen if i hit a small rock since the head does not sit flush with oil pan.

i kept putting off using it.

a previous oil change however forced my hand. i "stripped" the oem plug's head (sorry, words fail me - the part that you put the hex bit into, not the threads themselves) and had no alternative other than to put the "big head" bolt in. i figured i'd change it out with the next oil change.

that was almost 10k miles ago. no issues with it. yes it hangs a little lower but not enough to actually hit anything. no leaks from it. i used the "heat resistant" washer and placed a regular crush ring on top though after asking the seller about he, he said it's not necessary. just figured "why not".
[------ oil pan -----]
[--- crush ring ----]
[- plastic washer -]
{== big head ==}

since putting it on, i've driven to colorado and canada. some mountain roads and a couple of "loose" pavement roads. no issues.