Might be quite useful for constructing an intake manifold. The taper might allow you to make significantly shorter runs.They weld on the knob and the tip of the bat, so I guess the alloy must be weldable.

At 12:45 PM 4/6/2005, you wrote:

I am chopping and welding on my water pump and need a way to reduce the 1 1/4" outlet.  My welder pulls out this piece of AL.  "where did you find a reducer like that?".  "there was a whole dumpster full of them at the scrap yard, they're baseball bats"  "of course!"
    These have a good wall thickness, min. .063, and can be cut to whatever size you need, 2 1/4" to 7/8".  The hard part is sneaking out of the Little League park with that bat down your pant leg!   "looks like you sprained your ankle, guy"