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Originally Posted by MST0118
This is the first I heard of the Moly 2000 ductile sleeves. Seems like a good solution to help strengthen cylinders. Would be interested to learn more about the general process if it’s something you’re able to talk about.
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It's a material LA Sleeve has been promoting for a few years and we've been pretty successful making our own odd -ball one off sets.
The key to playing with iron liners is the ability to put large pistons in small-ish spigots.
The one thing we do that isn't really common is that we install the sleeve do a rough bore and send the cylinders to Millennium for a Nickasil coating and final size and honing to 8-10 RA. At a huge cost per cylinder but the accuracy and friction reduction seems well worth the extra cost.
We've made a few of these cylinder sets for builders who really want to turn up the boost.
We could never have squeezed a 95 mm piston in a 2.0/2.7 stud spacing if we tried to use Nickies. We made a few sets of 101.5 mm for a 3.0/3.2 case by simply sleeving 3.0 cylinders. Obviously the challenge is cooling the cylinders. The cast iron does not transfer heat from the heads as well a aluminum so head tempts for racing application would be a challenge. That said, most of us just aren't trying to win the race from our driveway to Cars and Coffee.