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big e lewis big e lewis is offline
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Default Engine hoist capacity

I am building an engine hoist framework, to hang a chainfall. I will be
using it to pull and install engines and trans in my racecar and other
various vehicles. I planned on using 4x4's for the uprights and the top
crossboard. The crossboard, that the chainfall will hang from, will be
10' long. Is a 4x4 strong enough, or should I use a 4x6, or something
else entirely? I figure the engine/trans combos shouldn't be more than
700 or 800#. Plus maybe a momentary higher weight when a mount hangs up,
and the front of the car lifts up a little with the engine. Any
comments/thoughts are appreciated! Thanks, Big E