Nope, has been patched out quite some time ago. For heat transfer, a small interface is normally enough, e. g. to power a few steam turbines. The biggest problem is that the lava will disconnect as is starts to solidify into debris. You will need to keep your spike walkable to fix that.
If you want to extract heat faster, instead of a deeper spike you can move heat, use a conveyor rail with refined carbon rotating on it, it transfers heat well. Rotate it into diamond windows at the source and at the destination.