I'm looking at installing a VQ35DE or HR in my 280z. I am looking at doing a stroker motor 4.1L or 4.3L? So, I find out that the frontier and others came with a VQ40DE motor that shares the block with the VQ35HR. My problem is that I can not find any information on the VQ40DE, VQ35DE or VQ35HR. Like head CCs, block hight, runner length, valve dia, ect.. or if the VQ40DE is infact a stroked VQ35HR motor? I do know that the VQ40DE, VQ35HR and VK45de motors have the same tranny bolt pattern. So, the question is does anyone know were I can get any information/specs on this motors. I wanted to input the in the engine design utility for everyone to use.