No the D15 has a deck height of 207.45 and all the D16's come in at 212, What we are aiming for (gsxr0407) is running a D16 head, he has a D15 bottom and got a killer deal on aftermarket D16 rods and pistons(brand new),So having a D16 head and using a D16 crank with put him in the area of running a little higher compression with a OEM HG with the shorter deck height, but that will be cured with a thicker HG also increasing the deck height of the block. ALL This can be avoided by getting a D16 block, but hey, were would we honda boys(and girls) be if we left the right parts on the right motors only time will tell..