1972-91 Chevrolet/GMC Truck Northern Aluminum Radiator 28-1/4" x 17-1/8" x 2-1/4"

Designed with race technology to provide your high performance engine with maximum cooling. This Northern® all aluminum replacement radiator is designed to offer 25-75% more cooling than ordinary copper/brass radiators and is specifically designed for your vehicle.

Features include a lightweight design (60% lighter than copper/brass), an ultra-duty transmission oil cooler (when applicable), thick hose connectors, reinforced die stamped tanks, a machined filler neck and all welded construction.

• Overall dimensions: 33" x 18-1/8" x 3-1/8"
• Core dimensions: 28-1/4" x 17-1/8" x 2-1/4"
• Inlet size: 1-1/2" and 1-5/16 dual neck
• Outlet size: 1-1/2"
• Number of rows: 2" rows of 1" tubes

For Northern aluminum fan shroud see part # Z40026 (sold separately).

For electric fan and shroud assembly see part # 40004 (sold separately).

Important: Due to the Ultra-duty design, this radiator may be thicker than your OEM radiator and may require modifications to the radiator mounts, fan shroud or automatic transmission cooler lines.

Note: Shipped oversize.

• 1978 Chevrolet/GMC Pickup 292
• 1978-87 Chevrolet/GMC Pickup 305
• 1977-87 Chevrolet/GMC Pickup 350
• 1974-80 Chevrolet/GMC Pickup 400
• 1973-87 Chevrolet/GMC Pickup 454
• 1978-79 Chevrolet/GMC Blazer/Jimmy 305
• 1981-87 Chevrolet/GMC Blazer/Jimmy 305
• 1978-91 Chevrolet/GMC Blazer/Jimmy 350
• 1973-80 Chevrolet/GMC Blazer/Jimmy 400
• 1973-86 Chevrolet/GMC Blazer/Jimmy 454
• 1978-79 Chevrolet/GMC Suburban 350
• 1981-91 Chevrolet/GMC Suburban 350
• 1973-86 Chevrolet/GMC Suburban 454

Classic Industries® recommends purchasing part # FL32060 Cooling System Zinc Anode. This will keep the cooling system galvanic action from "eating" the aluminum radiator by having it attack the zinc instead. Fits any 1/4" NPT cooling system hole including the radiator drain hole.