If you've decided to add modern power to your ride using an LS series engine, this LS Swap Radiator Kit is the perfect way to protect your investment and ensure proper cooling system function. We wanted to offer a solution for the budget-minded builder that also kept aesthetics in mind. Instead of an inline hose adapter with an NPT bung for you to plumb in your own fittings, which can look like junkyard parts hacked together and is susceptible to leaks, we created a unique LS Steam Vent Radiator Hose Adapter. This adapter makes quick work of several LS swap radiator hose issues with one simple piece. It features one 1.25" end to match the water pump outlet, one 1.5" end to match the upper radiator inlet, an integrated streamlined 1/4" 90° hose barb fitting for the steam line, and a black finish to blend in with radiator hoses. The combination of this adapter with one of our professional-quality aluminum racing radiators means your search for an affordable and effective LS conversion radiator solution is over. LS Steam Vent Radiator Hose Adapter Features 1.25" end - matches water pump outlet size. 1.50" end - matches upper radiator inlet size. Integrated 1/4" 90° hose barb fitting for a streamlined look. Black finish blends in with radiator hoses. This LS1 Swap Radiator Kit features our double-pass universal aluminum radiator. These high-performance radiators feature 100% all-aluminum construction. The furnace-brazed core increases durability compared to other radiators with epoxy-glued or crimped-gasket sealing methods. Two rows of 1-inch aluminum tubes allow this radiator to out-cool a similarly sized radiator with five rows of copper tubes. A rugged billet aluminum filler neck with screw-in bleed is also included. This radiator is designed for Compatible with Chevy applications with both water necks on the passenger side. Universal Aluminum Radiator Features: Passenger side upper inlet, 1.50" Passenger side lower outlet, 1