Pheonix

iTrader: (16)

My brother took apart this ls1 in 02 and i am putting it back together. There is a bolt hole on the rear top of the block right under the intake, its between the x water line rear bots. Its a pretty big hole and i dont know what goes there. I dont have anything to take a picture of it but maybe some one knows. would apreciate the help.

LS1MCSS

iTrader: (18)

It's either the hole for the cam sensor or the hole for the oil pressure sender.

heavy6.0

iTrader: (69)

if it is approx. 1" in diameter that is the cam sensor. the oil pressure sending unit oil is to the right of it if your standing in front of the block.

Pheonix

iTrader: (16)

Well if you stand looking at it from the front it would be on the right rear right in that flat spot under the intake, but behind the intake. I can still get to it even with the intake on.

blueeyeddevil141

iTrader: (5)

It is the Cam Position Sensor.

Pheonix

iTrader: (16)

Thanks for the help guys its the oil pressure sending unit the one that goes straight up. the cam sensor is right next to it but the connector 90's off.