Trimmed about 3/8 inch off the top and bottom flanges and bingo.
Now that the center to center dimension is OK, I'll drop the engine with the bell housing in and see what is what.
My only issue now is the transmission mounts. I found a custom polyurethane supplier here in southern Cal whom I plan to visit once I see where things line up.

In a message dated 12/29/2009 4:12:03 P.M. Pacific Standard Time, [email protected] writes:
Hello: discovered that my engine is a 230 cu inch, not a 250. Engine mounts are parallel on the 230 not offset. I'm going to have the offset stovebolt mount adapted. Took some time to figure out what was up. Will keep you updated. Rick

On 29-Dec-09, at 11:54 AM, [email protected] wrote:


How are things going?
I'm stuck until I can trim the frame mounts to slide further into the frame rails to achieve the 19 inch side to side dimension.

In a message dated 12/24/2009 6:44:46 P.M. Pacific Standard Time, [email protected] writes:
question. the mounts that I see are the same as mine. the remainder of the hardware that I have to mount on the engine will cause the mounts to be offset. does this make sense??. I other words I'm going to have to stagger the frame mounts in order to install the engine. Did I get the wrong kit.??