![]() ![]() Pumaspeed Racing Fiesta ST180 Cross Over to Engine Breather Pipe Add to basket. Our selection only includes brands we’d use on our own project vehicles, like Trick Flow, Earl’s Performance, and Holley, plus kits from our own Summit Racing brand. Fiesta, Fiesta ST180 Mk7, ford performance tuning parts. Buy Dorman 679-021 Exhaust Manifold Crossover Pipe Compatible with Select Ford / Mercury Models: Exhaust Pipes & Tips - FREE DELIVERY possible. Top BrandsĪn aftermarket coolant crossover helps your high performance engine run at peak efficiency and safety, so make sure you’re getting the genuine article at Summit Racing Equipment. Crossovers Older, Classic & Antique Trucks. While you’re at it, might as well upgrade the crossover as well! Aftermarket steam line kits are more versatile, provide better flow for improved cooling, are easier to service later, and look great, too. ![]() If you’re upgrading the intake manifold of your LS engine, you’ll need to remove the factory coolant crossover plumbing. I bet this motor is manufactured with similar attention to quality. An important weld on the frame broke the day I bought it. I once purchased a knockoff Chinese scooter based on the Honda Ruckus. The LS solves this issue with steam ports on the top of the block where these bubbles can escape, and coolant crossover lines (also called steam lines or pipes) carry them to the radiator overflow tank. In the world of cars, speed and power are taking a back seat to advancements in technology and innovation. ago Ive never heard of Powertec but I can tell you its not worth it. ![]() On other engines-most notably the LS-the thermostat is positioned lower, so the bubbles need another way out. In engines where the thermostat sits at the highest point of the cooling system, these bubbles can easily escape. Pockets of air or vapor can form inside the coolant passages of your engine block, and if they get stuck in there, they can prevent proper coolant circulation, creating “hot spots” that can throw off your tune, or even cause premature combustion. ![]()
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