Description:There are several great reasons to upgrade to a performance radiator: if you?¡¥ve modified your engine for greater horsepower and you need to provide additional cooling; if you have an older vehicle that started life with a subpar cooling system and you need better control of underhood temperatures; or if your old radiator is ready for replacement and you want to take advantage of the opportunity to upgrade. Whatever the reason, check out the selection at CA Auto Parts to find the radiator to fit your year, make, and model vehicle. Our performance radiators are crafted from aluminum for better heat dissipation and have larger coolant capacity to keep those temps down. Best of all, we?¡¥ve priced them to be easy on your wallet!Features:Stronger & Higher Capacity for Coolant than Stock UnitsMade of High Quality Full T-6061 Aluminum ConstructionLight Weight Direct Bolt-On OEM Fitment or ReplacementHigh Performance Racing Spec. 3-Row Racing DesignOverall Size: 28.000 in. x 25.000 in. x 3.125 in.Core Size: 21.750 in. x 19.250 in. x 2.250 in.Inlet/ Outlet: 1.500 in./ 1.750 in.Improves cooling by 35 - 45% temp.Transmission Cooler Thread Size : 5/8-18UNFPackage Includes:1 Aluminum Racing Radiator + Radiator CapCompatible with:1955-1959 Chevrolet C-/K-Series Truck/ Pickup/ Suburban1955-1959 Chevrolet 3100 / 3200/ 3400/ 3500/ 3600 / 3700 / 38001955-1959 GMC 100/ 150(Fits Models with 3.8L/ 6.1L l6/ V8 OHV Engines ONLY)Returns and RefundsWe accept returns within 30 days of delivery. To request a return, use the return process for the store or marketplace where you purchased the item. Return-shipping responsibility and refund eligibility follow the terms shown on your order. Return the item in the same condition received, with all parts and accessories. After the return is delivered, we will review it and issue any approved refund to the original payment method. This policy does not limit any rights or protections provided by the sales channel or applicable law.