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going to use a motor plate I got from speedway rather than stock motor mounts. Needing to know how much the isolators will compress under the weight of my sbc. Thanks in advance...BTW, happy and safe Labor day to all. Was able to attend some drags with some mid 10 s gassers...NICE....gets the enthusiasm up..for sure.
 

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figure the weight, take the mount put it in a press with a gauge, compress to 1/2 the calculated weight, and measure, then allow a little more for age as the mount settles
 

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Never really figured compression much myself. The change is so minimal that it normally doesn't affect the various angles. If it's a 2" donut, I doubt it will compress more than 3/4", and less if it's urethane, and not rubber.
 
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