Were the oil sending unit bolt's on there is a steel plug in it! the motor was a rebulid. have you guys ever seen that **** befor if you know how to get it out let me know it's like a big nail head on the outside and you can see the plug from the inside when you remove the 2 bolts under the oilfilter pleas help

 

nevermind i found the right spot it's a old block and the sending bolts on top of the block by the intake manafold