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Originally Posted by My90Iroc How much strength, if any would cryo treatment add to an aluminum block? If we were doing an all out build and didn't want to add the weight of the iron block, could cryo significantly increase the strength of the alum. block and limit or eliminate distortion? |
The place that does my Cryo-teatment has seen as much as a 50% increase in strength on aluminum connecting rods. On a set of aluminum heads that I had cryo'd & powder coated, it took 23 minutes for the powder to melt. The place that I had do the powder coating said that it normally only takes 15 minutes for the other aluminum heads that he has treated. The machine shop that I had work on the cryo'd heads however was very confused. They went through almost 3 valve guide reamers before they were done installing the 5/16" guides. So do your machine work first before cryoing your parts b/c they will charge for the extra time spent. For your engine block liners it is suggested by my cryo guy to just bore the liner's and then finish hone the block (or crankshaft) after the cryo treatment.