Quote:
Originally Posted by jago
doyou think getting the pistons coated would help?
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Absolutely. However...
Coated pistons have to be undersized to account for the extra mass of the coating. If you already have a stock block and OEM pistons, the block would have to be bored very carefully to account for the extra clearance needed once the pistons were coated.
I haven't looked into getting factory pistons coated, or finding any that were already coated that will match well to the 2.7 block. I would think you would benefit from having stronger, coated skirts on the pistons. As I said in that other thread, most of the wear was on the skirts, and hardly any wear on the cylinder walls. Strengthen the skirts, and you solve that problem, but I don't know if the cylinder walls would react well with the coated surfaces of the piston. You may find the cylinder walls start to wear faster, just because the block wasn't designed for a coated piston.
My plan, for now, is to get some pistons made, very similar to OEM, but with slightly longer skirts. This will add stability, and reduce the pressure on certain areas of the skirt. This, along with a balanced crank assembly, I think will do wonders for the bottom end, while keeping cost down.
If you try the coated pistons, let me know how that turns out.