Ok here is what I got, I have a D4 7U series. My head is cracked it is the 7F3764 and I also have a 4F5508 that is good. The machinist said that he can probably machine the pre-chamber ports out so that I can fit the new style pre-chambers with glow plugs.....is their any problems with doing this ......making any thing weak or suspect to fail?
Next question is can I use the valves and springs out of the 7F3764 head in the 4F5508 head.....intake valve is 6H3026 and exhuast valve is 4F0212?
Also my head has the compression release on it and the springs are shorter for the 7F3764 head will this make any difference on the 4F5508?
I also need 2 water diverters and what will the thickness for the pre-chamber gasket be?
Where can I purchase all new valves and springs, water diverters, pre-chambers, glow plugs? If anyone has all the part numbers I need that would be greatly appreciated. Sorry for the long post.