I built my valve adjustment wrenches out of Harbor Freight wrenches that I heated up with a torch and bent to whatever angle looked right for what I was doing. I ground down the appropriate areas so they were thin enough to only turn one nut at a time, and then hardened the whole thing by heating to cherry red and dunking in water. If you don't have an ox-acetylene outfit, a propane torch will take longer but work fine for bending. Or a camp stove.

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617 swapped Toyota Pickup, 22-24 MPG, 50k miles on swap