Bill, here is another picture and some dimensions.
>From the water pump shaft tip to the firewall it is 2.75 inches.
More clearance than it looks in this picture as the water pump
is off set from engine center line so it does not impact the
nose gear shock strut or bracket.

>From the center of the front rubber motor mounts to the firewall it is 25 inches.
My KISCOOL6 drawing shows it as 24.22 which is slightly off.

>From the center of the front rubber motor mounts to the end housing joint with
the bell housing it is 3.3125 inch. 
>From the eshaft pulley edge  to the firewall it is 4.875.

So that makes the engine:
 25.000
 -3.125
 -4.875
-------
 17.000 

inches long from the car bell housing mounting face to the
edge of the eshaft v belt pulley. A bit longer if you
take the water pump shaft into consideration.

Tracy's PSRU from prop flange surface up to the motor plate is 11 1/8 inches.
The motor plate itself is 1/2 inch thick and the motor mount rubber bushings
are located in the middle of the plate thickness.
>From the back side of the motor plate to the car bell housing mounting
surface it is 3 1/16 inches and that is also the length of Tracy's
spacer plates. 

Paul Lamar
 
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