350 project chevy

i know this is a tacoma forum....but iv gotten alot of help through this forum and im sure everyones knowledge isnt %100 exclusive to tacomas. so i have an 82 chevy truck with a '78 350 small block. iv had it running but it didnt exactly run well due to a broken spark plug i just found yesterday. now the problem is that i blow copious amounts of white smoke out the exhaust, there seems to be an oily substance coming out the exhaust, and my oil pressure is low - around 16-20. and only one exhaust pipe is blowing smoke, i have true dual exhaust with headers, no y pipe or any sort of connection b/t them. im lost and am not sure whats wrong....if you need any ore information about the truck just ask. any help would be much appreciated

 

head gasket is blown.

has the coolant level changed at all?

 

iv been messing with hoses and replaced the radiator so im not exactly sure. the last few times i let it run there didnt appear to be a change

 

well the white smoke is a good indication of burning coolant, and the fact that its only on one side is an even better indication since its much more likely for only one head gasket to go than both at the same time.

Im not really sure about your oil pressure problem though, maybe a sludge problem?

 

so a blown head gasket wouldnt affect the oil pressure that much? i dont see any oil running down the block...or any other indicator that its the head gasket. maybe ill just change the oil and see what happens?

 

the oil didnt appear thick...and it still had a bit of amber coloring, as opposed to the solid black i would have expected. but i dont drive it much its ben sitting for a while...never driven it over 5 miles in the past 6 months

 

The only indicator of a blown head gasket is usually the smoke. It would really have to be bad for it to be leaking coolant down the block lol.
You might get more experienced help on a chevy forum with the oil pressure issue.