Power Tools

For years, finding the right silicone for copper gaskets has been frustrating—most silicones either crack under high heat or don’t stick well enough to handle oil and temperature fluctuations. After hands-on testing, I’ve found that the Permatex Ultra Copper RTV Silicone Gasket Maker 3 oz really stands out. It’s designed to withstand temperatures from -75°F … Read more

Before testing this silicone, I didn’t realize how much a poor gasket seal could cause engine leaks and overheating. When I tried the Permatex 82180 Ultra Black Maximum Oil Resistance RTV, I was genuinely impressed with its oil resistance and flexibility. It adheres well to oily surfaces and withstands temperatures from -65°F to 500°F, which … Read more

When I first held the Permatex 82180 Ultra Black Maximum Oil Resistance RTV, I was surprised by its smooth, almost rubbery texture—easy to apply and no fuss. After hands-on tests, I noticed it maintains excellent flexibility even after curing, resisting cracking or shrinking over time. It handles oily surfaces confidently, creating a long-lasting seal in … Read more

Many users assume that all exhaust gaskets are created equal, but my hands-on testing of the Mr. Gasket 5960 Ultra Seal Exhaust Gasket proved otherwise. This gasket’s 1/16″ thickness and 10″ x 10″ size give it a snug, reliable fit that seals perfectly under high heat and pressure. Compared to cheaper options, it feels solid, … Read more

Holding a silicone gasket in your hand is surprisingly satisfying—firm yet pliable, with just enough give to feel like it’ll seal tight. During my testing, I noticed how high-quality silicone gaskets like the FEL-PRO 1628 Engine Valve Cover Gasket Set feel sturdy, with a smooth rubber surface that’s flexible but durable. They compress evenly, sealing … Read more

Unlike other gaskets that tend to leak or burn out quickly, the James Gasket Cylinder Head Gasket – .45in. Fire-Ring really impressed me during hands-on testing. Its 0.45-inch fire-ring design creates a tight seal, crucial for high-performance shovelheads. I found it handled extreme heat and compression without any signs of failure, which is a game-changer … Read more

As summer rides and hot days approach, having a reliable shovelhead exhaust gasket becomes especially clear. I’ve personally tested several on my vintage Harley, and trust me, the little details matter—like sealing tight under high heat and resisting blowouts. The Harley Exhaust Gasket with improved sealing, high crush resistance, and graphite-steel construction really stood out … Read more

This product’s journey from last year’s mediocre performance to today’s standout capability demonstrates the importance of quality materials and precise fit. Having personally tested several gaskets on my Shovelhead, I can say that the Fits Harley Shovelhead 1966-1984 Top End Gasket Kit truly stands out. It offers reliable sealing and resists leaks under high heat, … Read more

The landscape for SBC intake manifold gaskets changed dramatically when sealed-composite technology entered the picture, and I’ve tested them all. After extensive real-world use, it’s clear that sealing power and durability matter most. I’ve pushed these gaskets through hot, high-RPM runs and cold starts, and the Fel-Pro 1206 Engine Intake Manifold Gasket Set consistently sealed … Read more

For years, header collector gaskets have lacked a reliable seal that handles high heat and pressure without slipping or leaking. That’s why I was excited to get hands-on with these copper options—they really stand out after thorough testing. The GSKMOTOR 2.5 Inch Header Collector Gaskets impressed me with their solid copper build, 0.41″ thick material, … Read more