Brand new to the forum and this probably a newbie question, but I haven't seen a thread covering this that I can find.

Does anyone know if there is a difference in the engine front cover between the 04 and 04 1/2 transition? Also any other variations that are made to the actual long block itself that you know of would be helpful. I'm wanting to convert 03-04 long blocks to 04 1/2 - 07. Thanks in advance. TA

 

Think the differences are in the pistons,head,injectors,and tune. Not 100% tho.

 

Thanks for the info.

 

Depends on whether you are talking about 03-04 SO or HO blocks.

With the HO blocks, the differences are pistons, injector and valves. Eveyrthing else is essentially the same.

With SO blocks its all the above plus piston oilers and possibly rods.

 

thanks for the info.