[Henry Schmidt]

The Andial 3.2 to 3.8 conversion needs a 3.6 (76.4 mm stroke crank) and stock 3.6 rods.
The dimensions are 76.4 X 102.
Andial also offers a 3.7 conversion that uses a 3.2 crank and does use a special rod (1 mm longer) which allows them to use the same 102 mm piston in both 3.8 and 3.7 conversions.
The dimensions for the 3.7 are 102 mm X 74.4.
Both of these conversions requires extensive case machine work. There is more work on the case than just boring the spigots. When completed the case look very much like a 962. Even the case through bolt washers need to be machine for cylinder clearance. Then each cylinder is machined as a separate project to allow for case though bolt and nut clearance.


I hope this helps .