Johnson's 5-7387-9-3 73-87 GM Truck, LS Radiator

1973-87 Chevy Truck Radiator - LS - Non-A/C - 5-7387-9-3 Top Outlet - 1.250" Right - Bottom Outlet - 1.500" Right - W/ 1/4" NPT Steam Port Johnson’s Radiator Works radiators feature a 4-row, 2 ¾” thick - high-flow copper core, ideal for the best cooling efficiency possible. Built as a direct fit for a stock replacement complete with the appropriate connections. Made with heavy gauge steel side brackets and mounting holes pre-stamped. Frequently Asked Questions: · Simple bolt-in install w/ no modifications to grille or grille shell · Copper core with 1-piece brass tanks · Brass tubes made in-house, .125 in. x 0.5 in. · Top tanks stamped from .040 deep draw brass · Quality control start to finish from raw material to finished product · Made in the USA with original tooling · Heavy duty 12 Ga. steel side brackets w/ pre-drilled holes where needed · Designed to operate with a 15-18 lb. radiator cap     *(Exclusion of Flathead application 7 lb cap recommended) · Brass drain cock · GUARANTEED TO COOL