Thread: Oh no not another Willys Gasser build, this time a Willys shop truck

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Steve, is that square tapered jig something you fabricated?

Originally Posted by rspears

Steve, is that square tapered jig something you fabricated?

Yes Roger, must of made that about 40 years ago to make SBF headers

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Originally Posted by roadster32

Yes Roger, must of made that about 40 years ago to make SBF headers.

That's a neat tool. A header guy shared with me to "...squeeze the round tube in the vice to the width desired, then "whang" the top with a hammer, squaring it off. Flip it over and "whang" it again to square off the other side. then selectively massage it to fit. I like your tapered tool better. It looks to be only nominal 1/8" (3mm) flat stock welded?

Originally Posted by rspears

That's a neat tool. A header guy shared with me to "...squeeze the round tube in the vice to the width desired, then "whang" the top with a hammer, squaring it off. Flip it over and "whang" it again to square off the other side. then selectively massage it to fit. I like your tapered tool better. It looks to be only nominal 1/8" (3mm) flat stock welded?

I like his tool better too. I've had to do some 4" round to square pieces when making turbo piping and I wish I would have made a tool ike this and then affixed it to my press. Great work as usual sir!

Originally Posted by rspears

That's a neat tool. A header guy shared with me to "...squeeze the round tube in the vice to the width desired, then "whang" the top with a hammer, squaring it off. Flip it over and "whang" it again to square off the other side. then selectively massage it to fit. I like your tapered tool better. It looks to be only nominal 1/8" (3mm) flat stock welded?

Its actually 4mm plate Roger.

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Originally Posted by rspears

That's a neat tool. A header guy shared with me to "...squeeze the round tube in the vice to the width desired, then "whang" the top with a hammer, squaring it off. Flip it over and "whang" it again to square off the other side. then selectively massage it to fit. I like your tapered tool better. It looks to be only nominal 1/8" (3mm) flat stock welded?

Roger I can't honestly see where doing that way you would ever get a nice corner and keep the 4 sides nice and flat

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Originally Posted by roadster32

Roger I can't honestly see where doing that way you would ever get a nice corner and keep the 4 sides nice and flat

Your absolutely right. I had to make a 1/4" plate anvil the width of the tube ID, with rounded corners, that I clamped into the vice. On my header flanges the perimeter of the port is equal to the OD circumference of the 1.75" primary tubes, so that when formed the tubes slide into the flange. Not sure if yours are that way or not. With the SBF ports being taller than they are wide the tool you made would be a bit more "interesting" to form.

Originally Posted by rspears

Your absolutely right. I had to make a 1/4" plate anvil the width of the tube ID, with rounded corners, that I clamped into the vice. On my header flanges the perimeter of the port is equal to the OD circumference of the 1.75" primary tubes, so that when formed the tubes slide into the flange. Not sure if yours are that way or not. With the SBF ports being taller than they are wide the tool you made would be a bit more "interesting" to form.

This little tool was originally made for SBF headers, just use the first few inches of it.

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Originally Posted by roadster32

This little tool was originally made for SBF headers, just use the first few inches of it.

Steve, if the tool is square how did you deal with the rectangular ports on SBF headers? Wingnuts look killer, BTW!