AEROFLOW Radiator Hose Adapters RED 1.5" O.D, 2.75" Length, 1-1/4"-20 thread BBC These have counter sunk bolt

These have counter sunk bolt holes and the one time use T40 Torx Bit tapered bolt is included and also sold separately (AF463-52)

Centre to Centre of Bolt Holes - 68

Part Number: 66-023

5 Metre Length

Join your exhaust tubing together quickly without crimps or welding—with Proflow band clamps

AEROFLOW Radiator Hose Adapters RED 1.5" O.D, 2.75" Length, 1-1/4"-20 thread BBC These have counter sunk boltAF64 2080R Radiator Hose Adapters RED 1. 5" O. D., 2. 75" Length, 1 1 4" 20 thread, fits most electric water pumps Radiator Hose Adapters. These adapters fit most popular electric water pumps and Aeroflow Water necks. Two hose sizes available 38mm (1 1 2") and 44mm (1 3 4"). Available in Blue, Black, Silver and Red.