The 36 crank will not work.. Because the EZ30 and the EZ36 are almost completely different.
The crank will not fit in a EZ30. Since the oil pump drive is in a completely different place... If you look futher down the thread it shows the guy compairing the EZ30/36 parts.
[quote name='sponaugle said:
As mentioned in this thread and a few others, Cobb no longer has an engine program, so EZ30R Cobb parts are not available. The crank pictured in this thread is a modified EZ36 crank. Unfortunatly this crank is not a direct drop in for the EZ30. Not only is the oil pump drive different, but the additional stroke requires a very special rod.Take a look at a Post I made last year:
(pulled from url]http://forums.nasioc.com/forums/showthread.php?p=24087432&highlight=EZ30R#post24087432[/url])
Here are a few things to look at:
As you can see, the change in the oil pump location (which is now in the oil pan), makes the EZ36 crank incompatible with the EZ30/EZ30R case. This prevents the use of the 3.6 crank (which has longer stroke) in the EZ30 application.
You can also see the new EZ36 rod, which is very unusual. The asymmetrically design is needed to clear the case with the longer stroke. This rod is required to get the stroke to fit in the 3.6 case, and would not be usable in the 3.0L applications.
So, in short, nearly everything is different. The heads are not compatible due to a change in the coolent passages, so the only option is a complete 3.6 buildup. Given the rod limitation, this looks to be very difficult.
The stroke in the 3.6 is 91mm vs 80mm in the 3.0, and the bore is 92mm vs 89.2mm. So both more bore and stroke.
Yep, I hoped it would work, but it looks unlikely. The change in the oil system makes crank swapping very difficult! You could over-bore the 3.0R motor, but it would make the liners even thinner then they currently are.
Given the rod limitation, I think you could handle much more power with the 3.0 with aftermarket rods. I had little trouble breaking a stock 3.0R rods at the 400whp level, and the rods in the 3.6 look even weaker.
More to come..
Jeff Sponaugle
Also another guy I was talking too, Owned a new EZ36 powered Legacy and he said It didnt like to run at higher Revs.