In the custom-truck scene, there's one thing that most people strive for: the ability to stand out at a show. That uniqueness is, without a doubt, worth its weight in trophies and recognition. While frontend conversions and taillight swaps may take care of the exterior, and fiberglass may clean up the interior, the options for engine dress-up have been relatively limited. That is, until now.
Optiflo Inc. is introducing an idea that may single-handedly revolutionize the way engine compartments will look at future shows. The concept is to remove the plain and boring rubber hoses from your engine and replace them with glass extensions, which not only conform to the original hoses, but will also allow never-before-seen visual elements. These spectacular visual elements allow you to watch radiator fluid flowing in and out of the block and through heater hoses, as well as vacuum wisps moving over the block.
Some immediate concerns come to mind at the mention of sticking any type of glass on a hot and turbulent engine. First and foremost, what is going to keep it from shattering? According to Todd Townsend, creator of Optiflo Inc., the glass tubes the company uses have a wall thickness as big as 4mm and are made of the same material as Pyrex ovenware. To prove to us how strong the glass is, he put it head to head against a 2x4-inch wood plank, the shop wall, and a metal filing cabinet, all of which lost to the glass. He even placed the tube on the ground and stood on it to show its structural rigidity.
The second concern we had was how the glass would handle the heat from the fluid within the radiator and heater hoses as well as the overall temperature from within the engine compartment. Todd explained that the glass is heated to extreme temperatures during the manipulation stage, then set into a 1,000-degree kiln to cool off for about an hour. Considering that the temperature of your engine only sits at around the 210-degree mark on a hot day, heat is not an issue.
Follow along as we removed the intake, vacuum hoses, radiator hoses, and heater hoses on our '93 Toyota project truck, and then let the crew at Optiflo work its magic. Since the glass can be manipulated into any form and decorated with any design, the custom possibilities for this application are truly endless.
1.Graphite tools are used to bend and smooth the glass while in the fire. The graphite does not transfer heat as other metals would, so the tools can come into contact with the glass for longer periods of time. | 
2.The artist lathe and torch is where all the magic happens. The lathe keeps the glass turning at an even pace, and the torch can be adjusted to apply more or less heat. | 
3.The term blowing glass comes from the medical tubing that's inserted into the glass. The artist can blow air into the tube if the glass begins to collapse, or suck air out of the tube if it begins to expand. |
4.To test the structural integrity of the glass, we had Todd from Optiflo stand on a section of tubing. This tubing is extremely tough. | 
5.A length of tubing is selected to be used for the air intake. | 
6.Once the hose clamps are removed from either end, the old intake can be removed. |
7.We then removed all the pieces not containing fluids that we could replace with glass counterparts. | 
8.Inside the shop, Damian added some color to the intake, using a colored-glass rod. As the glass turns, the rod is melted, transferring the color. | 
9.After the design sets, the glass must be smoothed again to retain its structural integrity. |
10.The end of the intake was heated, then bent to conform to the necessary shape. | 
11.A few measurements were taken to find out how much tubing would be needed for the vacuum line. | 
12.Smaller tubing was married to the end of the vacuum line, which will provide a factory seal once the rubber hose is clamped on. |