I could only wish that I had the cash to buy a a4 or a r302 it must be nice. Here is what I found in my FMS catalog.
The r302 is a wet sump roller block with no water jackets between the cilinder bore. It uses the same cam bearings, and main bearings that a normal 5.0 block could. I'm guessing all is the same for the a4 except it has water jackets unlike the r302.
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347 W/ A-trim 6#'s, Canfield heads, out of the box Systemax II intake, solid roller cam. 11.1 @123mph 1.46 60FT
93lx 5.0 daily driver
MY CAR
http://www.mustangworks.com/cgi-bin/...splay.cgi?1288