Of all the components in the cooling system, the performance of the radiator is the most critical. AFCO understands the vital role the radiator plays in protecting the investment you have in your car. That is why they make no excuses or compromises in constructing the best aftermarket radiators in the industry. Don't trust your pride and joy to anything less than AFCO quality.
If you've decided to add modern power to your ride using an LS series engine, these LS Swap Radiators are the perfect way to protect your investment and ensure proper cooling system function. AFCO's LS conversion radiators are built with the correct inlet and outlet required for the engine swap. They are 100% TIG-welded, 100% pressure tested, and use no epoxy or sealers. These double pass radiators were designed for the rigors of racing, but we added integrated steam port and fan temperature sensor fittings to allow their superior design on the street. 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, this radiator includes a factory-style steam port fitting. This unique combination of a professional-quality aluminum racing radiator and steam port fitting means your search for an affordable and effective LS conversion radiator solution is over.
This radiator is designed for Chevy applications with both water necks on the passenger side.
Universal fit LS Swap Radiators are available in the following sizes (see suggested sizes for common applications listed below in "Applications"):
Item Details:
- Steam Port Fitting: 1/4" NPT
- Water Temperature Sender Port: M12 x 1.5
- Drain plugs included
- Billet filler neck offers strength and higher quality appearance over stamped
- TIG-welded by skilled craftsmen
- Inlets and outlets are positioned correctly for ease of flow
Unlike the older SBC or BBC, the LS engine family features a thermostat that is located in the water pump housing. While this design allows for temperature and flow to be regulated before the coolant enters your engine, having the thermostat at a low point means that any air in the cooling system can easily get trapped in your engine. Air bubbles in cooling passages disrupt coolant flow, create hot-spots, and can cause overheating issues, pre-ignition, and detonation. None of these are things that your new (or used) LS will stand up to for very long without damage. Fortunately, there are steam ports in the heads that allow this trapped air to flow away from critical cooling locations to a high point outside of the cylinder heads. Since these engines utilize a closed pressurized cooling system, the steam tubes must be connected back into it at some point. Stock radiators in vehicles produced with LS engines feature a port to connect the steam lines to, and a direct-fit LS swap radiator with steam port provision is likely available for your ride - at a high price tag. These universal fit radiators allow you to spend less of your hard-earned cash on a cooling solution without sacrificing appearance under the hood.
Learn more about how radiators work, selecting the proper radiator for your vehicle, and the importance of using a fan and shroud by reading our tech article. Radiator Cooling Performance.
