Photo 2/11 | 001 Engine Bay Heat Shielding | After years of use and abuse, the factory heat shield mat that’s typically found on the firewall had all but disintegrated. It’s no loss, really, as this fiberglass fluff was never the best at actually redirecting the radiant heat of the Duramax engine’s exhaust system. What was left of the factory material had absorbed so much grease and oil that it was a borderline fire hazard anyway.
Photo 3/11 | 002 Engine Bay Heat Shielding | Before we got down to the business of applying the heat shield, we needed to clear away 15 years of dirt, grime, and oil from our truck’s framerails and firewall. Several cans of degreaser, many hours of scrubbing, and a bit of paint later, the engine bay looked good as new. Well, not quite new, but certainly better than it was.
Photo 4/11 | Engine Bay Heat Shielding Clean | Engine Bay Heat Shielding
Photo 5/11 | 004 Engine Bay Heat Shielding | We started applying the HP Sticky Shield in the upper left corner of the engine bay. We know what you’re probably thinking, and no, that area isn’t subject to intense heat. However, it required so little to cover that we opted for the uniform look.
Photo 6/11 | 005 Engine Bay Heat Shielding | Applying the HP Sticky Shield is both simple and frustrating at the same time. Achieving the professional install quality look we were going for meant templates for the pieces needed to be created. The frustrating part is that arts and crafts were never our strong suit—that’s why we work on trucks.
Photo 7/11 | Engine Bay Heat Shielding HP Sticky Shield | Engine Bay Heat Shielding
Photo 8/11 | 007 Engine Bay Heat Shielding | We used a combination of butcher paper, cardboard, and masking tape to create templates that most closely resembled the shape of the pieces we were envisioning. From there, we transferred the pattern to the HP Sticky Shield and cut the piece. A sharp set of quality scissors is needed to cut the heat shielding material. Dull scissors or other tools will just make a mess of things. Note that a razorblade helps separate the backing from the adhesive.
Photo 9/11 | 008 Engine Bay Heat Shielding | Photos really can’t do the curvature of the firewall justice. What look like simple square pieces are actually a mixed tapestry of complex shapes covering all the humps and bumps. Special care was taken in the areas where the turbo, up-pipes, and downpipe live, as these will see the most heat.
Photo 10/11 | 009 Engine Bay Heat Shielding | With care, patience, and a bit of a crafty eye, the finished product can turn out looking like it was factory installed. Once all the pieces were affixed, we went back over it all with the provided seam tape, which is in essence the top layer of the HP Sticky Shield without the fiberglass backing. It gives a finished cohesive look to the patchwork of pieces that make up the firewall covering.
Photo 11/11 | Engine Bay Heat Shielding Finished Product | Engine Bay Heat Shielding