Radiator Chevrolet PICKUP 81-86 Model specific water cooler made of aluminum and TIG-welded. The cooling pipes sit with a distance of 10mm and have 14-16 flanges per inch. Fits: Chevrolet Pickup C10, C20, C30 73-86 Chevrolet Pickup K10, K20, K30 73-86 Chevrolet Pickup R10/R20 87-88 Chevrolet Pickup V10/R20 87-88 Chevrolet Blazer 73-91 GMC Pickup/Suburban C15/C1500, C25/C2500, C35/C3500 73-91 GMC Pickup/Suburban K15/K1500, K25/K2500, K35/K3500 73-91 Included: Tap plug in copper Radiator cap Overall Size: 850 x 530 x 65 mm Element size : 715 x 480 x 50 mm Number of rows : 2 Inlet: 38 mm Outlet: 40 mm Oil cooler built-in : Yes Thread Oil Cooler : 1/4NPT *Radiators can fit more models than those listed. Always compare the measurements given above with what you want.