Carl H wrote:why not machine the greddy manifold to accept the de gasket and just run with it?would be cheaper than a new head...and would give increased port size.
The DET ports are a LOT bigger than the DE ports although it may not seem to be so from the picture. The overall diameter is larger, even though it looks like it bottle-necks on the DET. The CC's inside the head are far smaller than the DET which would result in different CR. Also, the neo DET cams push the valves too far out into the combustion chamber and i believe that the valve timing would overlap if the head was used with the Tomei cams for the DET neo. the machine shop would olny fully instal the exhaust cam, and left the intake cam cams evenly loose to allow the lobes to not depress the lifters which would result in the intake valves hitting the exhaust valves when rotating the cams to set the timing when the pistons are at TDC.
I have contacted a member of Skylines australia forums to source an R34 neo DET head, which i am awaiting a price quote for. I hope all goes well and i am able to get this new head for a reasonable price. I have over $14,000 into this build so far and still lack a running car.
As crazy as this may sound, this is my "daily driver". I was going for something a little extreme i realize that, but i never anticipated that it would be this difficult. I thought when i bought the car that it would need thing or two, not an entire head / cams, and everything else that goes with it.
Im going to keep going until this thing is running!!!
-John
