[semlin]

More data points. I will update the first post to include this info:

It looks like there is a fairly close match for the OME 73/74Es in the Konis. Here are the specs for the Koni 82 series heavytrack australia (50mm lift shocks) I mentioned above. You can get them in north america special ordered from holland if you allow minimum 6 weeks shipping through koni usa.

82 2385 617 mm / 373mm front
Forces rebound = 2600 N, compression = 1050N

82 2386 617mm / 373 mm rear
Forces rebound = 2300 N, compression = 1050 N

Price is US$ 122 ea and US$ 114 ea. The rebound stats are when stroked at 33 m/s. These are roughly same length, same rear stroke, but a 19mm shorter front stroke than the OME 73/74e combo so you could use them with 0 lift up to at least the ome heavy springs. The 82 series has a 16 mm piston rod, 33 mm piston and 50 mm reservoir. Koni says their shocks carry a 40% surplus of oil over design needs.

For a big lift the following are suggested for the 80 series by Koni at $165 each
90 5055SP2 - 688 mm 399 front
90 2367SP2 - 702 mm 424 rear

Koni "suggests" but will not warranty these shocks on a lifted 80. You can see the stroke is very similar to OME L series but at 21 mm and 35mm longer you would need a lot of spring lift for these big boys plus you might need to mod the shock mounts. According to Koni the pin mounts require a chassis plate that is roughly 10 mm thick. the shocks are 70mm tubes with 80mm dust covers and they need a 30mm dia hole for the pins and the rear eye has a 1" ID and is 1.97" long (my stock eye is 1.25" long but have not measured an OME). Price = US$165 each.

If interested in these or other 90 series options you need to check the rebound rates in the catalog for these models then talk to Koni about how they would rides. I am not sure I understand the rating system they are using.

There remains the possibility of tracking down the elusive 88 series Australian Konis. These would be bigger shocks than the 82 series heavy tracks above and in the same US$120 price ranges. I have tried Koni USA and they are sure they do not exist outside australia. I have also tried Koni Australia without success.