Aerospace Components AC-FN1 - Aerospace Components Swivel Filler Necks

Allows you to rotate the outlet in any direction. Fill your cooling system at it's highest point by eliminating trapped air in the system. Fits SB & BB-Chevy and accepts standard radiator cap (not included). Includes a 1/8'' NPT orifice for overflow catch can. Choice of 1-1/4'', 1-1/2'', or 1-3/4'' outlet fitting. Quality product by Aerospace Components