Over the entire winter here in Georgia, I left my n/a 280zx alone and hadn't driven it for a few months. Previous to the winter, the engine ran pretty strong and there weren't any issues I could think of other than the exhaust manifold gasket leaking a little. However, this winter, temperatures were especially cold and I suspect that the antifreeze had frozen and cracked my block. When I went to run it this afternoon and take it for a ride, coolant sprayed everywhere in the engine bay on the driver side. At first I thought it was nothing and that one of the hoses were cracked, but after inspecting for awhile I couldn't find any cracked hoses. There is a distinct "puffing" sound coming slightly erratically, white smoke coming from the exhaust pipe, and coolant coming out of the exhaust pipe. Is it safe to assume that the block is cracked and time to finally do an l28et swap? I'll attach a video of the engine running now and one of it running sometime in the fall even though that is probably irrelevant. Now: https://www.dropbox.com/s/h3wd8t033r7wtcj/20140222_135403.mp4
Before: https://www.dropbox.com/s/kvplhep6pabaae7/2013-08-24%2020.38.34.mp4