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Boyz And A Hood - Adding Custom Work to that Car Hood

We Learn How to Peak a Hood...the Hard Way
By Dan Kahn
Photography by Troy Ladd
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In our experimentation phase, the first thing Ryan tried was bending a piece of mild steel into a 60-degree angle on the brake, which he would then finesse into the perfect peak shape.
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Here you can see the sample piece after it has been bent, and it's far too big to make a proper line in the hood, not to mention it would be difficult to blend in properly.
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Ryan's solution was to make a buck out of a piece of wood, with the correct angle cut out to accommodate the bent steel and radiused corners, that would allow the edges of the steel to spread flat, forming a more gradual transition.
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Using a planishing hammer, the edges of the metal were worked and spread in the buck to create a more gradual transition into the peak.
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The finished sample piece was laid down on the hood, and as you can see, it looked pretty good.
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After marking off the true center of the hood, the shaped metal was tacked into place.
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Next, Ryan welded the peak onto the hood. It looked fine to our novice eyes, but Ryan wasn't happy with the net result. Besides the fact that the peak was too sharp, slight warping occurred.
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The decision was made to remove the new metal from the hood, which was done with tin snips. As soon as the peak was gone, the warping disappeared. It was time for Plan B.
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Ryan felt that a larger piece of metal would allow for a shallower angle, as well as more space to allow for cooling and prevent warping. In applications like this the best metal to use is cold-rolled 18-gauge steel, since it's thick enough to maintain its shape after being worked on, but still thin enough to be pliable. The cold rolling is necessary because it keeps the metal workable, as opposed to steel that has been stamped or poured which can be brittle.
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The same basic technique was applied, once again, to the larger piece of steel, with about a 90-degree bend put into the metal with the brake.
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Ryan used the same wood buck to form the bottom curve of the peak, only this time the base is much wider, cut to the same width as the gap in the hood.
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The new steel was then put in its place with a series of small tack-welds.
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Keeping the tack-welds evenly spaced with lots of time to cool between passes prevented warping, and after enough passes the entire space will be filled up with small welds, which can then be ground smooth. Notice the nice point Ryan finished the peak off with.
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Ryan ground the welds smooth slowly and evenly with a small grinder, making sure to take long, light passes with plenty of cooling time.
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With enough grinding, the welds disappeared, leaving a smooth bridge between old and new steel.
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Next it was time to "nose" the car, by removing the holes in the hood where the emblem once resided. Small pieces of steel were patched-in and ground smooth.
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By utilizing this method, the peak remains straight as an arrow, as opposed to building up a peak with a welding rod and lots of welding, the way some people do it.
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The finished product looks like it came that way from the factory, except the factory never built anything so cool!

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