Hi Guys
    Quite some while back Mark Sietle put a Mocal oil cooler in his plane, which I was quite impressed with. Recently I began watching ebay for one of these coolers and a few weeks ago I hit paydirt. IRC, Mark was using the C43-330 which is a fine looking piece of craftsmanship but are pricey little devils at $350 apiece. They are 330 mm long and a single pass. The E54 series offer 25% greater cooling in a comparable size, while the ECD54 series are dual core and have double the cooling capacity as the comparable size C43 cooler, but are prohibitively expensive at ~$800.
    I managed to get mine for $275usd and it was still new, never used. The seller had 2 of them and since I only took one there is still another available. He indicated that he would re-list the other cooler on ebay, but I haven't seen it yet or I'd have just posted the listing. So if anyone is interested you can just contact him direct at chines@pendragon-design.com .
    I'm very impressed with mine as it is a very fine piece of workmanship. It is only 182mm long but weighs in at just under 3lbs. Attached are a few pics of it disassembled.
Thought I'd pass it along.

Todd
C-FSTB