I just reshaped my bottom cowl to fit the radiator.

What size inlet in relation to rad size should I start with, 10% or 15%
of rad size. 10% will be a 34.3 sq inch inlet which is already a pretty
big hole to cut for one side. There's insufficient distance to do a
masterful job with a diffuser up to the wedge itself going on the rad.

Alex Molteno

Keep it the same size to start. Your cross counter flow rad is more
efficient than
the old 3 inch thick core with that rule of thumb. You can always make
it bigger later.

Think about the outlet lovers. Here are some nice ones from Lewis Bjork.

Adjustable ones are best.

Paul Lamar

If you reorient the opening to a vertical slot like Lewis did it makes the transition
to the K & L wedge diffuser easier. Here is another picture of that.

BTW Alex I don't think I have any pictures of your actual rad mounting.
Will you please send me some.

Paul Lamar

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