1965 1985 GM 3 Row Manual Transmission Radiator 33?x19? 123 Series Radiator Universal GM 17 Inch Core Manual Transmission Proform 1999 2011 GM Chevy Trucks 3 Row Automatic Radiator 34?x17? Cool Your Engine With Proform's 1 2 3 Series Radiator Systems Proform , Radiator System, Slim Fit, Inlet on Driver Side, Outlet on. Proform's new modular 1 2 3 Series Radiators and Accessories fit together just like they should, nice and easy! Start with this 17 wide core Stage 1 Radiator, part no. 117F000 as the foundation for your cooling system. These aren't just your ordinary single pass radiators, they offer beautifully tig welded tanks, and a slick profile thanks to Proform's unique Four Corner Design. The Four Corner Design makes it easy to attach the exact fit Stage 2 Fan Shroud, part no. 1171S00, because the mounting holes line up, making installation a breeze with the included hardware. For the ultimate professional look at DIY costs, take the 1 2 3 Series Stage 3 fan, part number 67014 or 67018, and mount it up to the pre threaded holes in the shroud; then top it off with a fan controller to make life easy. It s easy as 1 2 3! This is a really nice cooling system that's ready for the show, streets, or strip! This Stage 1 Radiator has dual one inch tubes, single pass, with optimized louver design to maximize cooling, and deep draw headers for an extra solid tube header seal. Billet aluminum filler neck with overflow tube, and a billet aluminum 16 psi cap are included. No epoxy or anything else like that just tight tolerances all around. Building your custom cooling system is easy! Features: All Aluminum Radiator Shroud Ready with Four Corner Design Compatible with Stage 2 Shroud part number 1171S00 Compatible with Stage 3 Electric Fans part number 67014 and 67018 Compatible with Stage 3 Fan Controllers part number 69598 and 69595 Thread in Thermostat Ready (3 8 inch NPT) Beautifully Welded Tanks Billet Aluminum Filler Neck Billet Aluminum Radiator Cap Included High Capacity Overflow Tube 123 Series Radiator Universal GM 17 Inch Core Manual Transmission Core Thickness (in): 2. 4 Core Width (in): 17 Electric Fan(s) Included: No Finish: Natural Height (in): 18 Inlet Diameter (in): 1. 5 Inlet Location: Driver Side Mounting Style: Universal Outlet Diameter (in): 1. 75 Outlet Location: Passenger Side Overall Width (in): 22. 3 Series: 1 2 3 Shroud Included: No Transmission Type: Manual