hey when you guys installed your oil pressure senders in that location on the engine block did you get any oil leakage? is there a problem with the block being made out of aluminum and the sender not being aluminum with the different rates at which each metal expands when heated? thanks.

95 contour se, lots of mods.
http://www.contour.org/carprofile/carprofile.cgi?a=display&uid=00000132