Originally Posted by
bassboy
Any idea what they are selling for now?
Thing is, I need a head (but currently debating using a ST170 head and going to town with it)...and all the various fitting bits from the bottom end - all the nuts, bolts, sump, pick up pipe, water pump, oil pump, pulleys etc....not sure if its cheaper to just buy everything separately or maybe just source a second hand 2L block and reuse what I can...
Around a grand, there can't be many left.
Part of the drop in compression is to do with the volume of the Blacktop head with the thicker gasket.
Using the st head.
You will probably want to delete the vvt.
You will need a custom inlet manifold as the st has the inlet ports 10mm higher than the Blacktop. The st manifold will be no good boosted with the dual stage plenum.
The Blacktop already flows plenty when boosted.
There is some suggestion to say that less metal around the valves doesn't do the head any favours with high boost.