-20AN WATER NECK ADAPTER - BLUE XPRO Tank Height: 210mm (8-1/4")

Tank Height: 210mm (8-1/4")

This LS intake manifold suits LS3 rectangle port heads

Impedance: High (8

Small Block Ford 351 Windsor 1/2" Head Stud Kit

called MSD View

-20AN WATER NECK ADAPTER - BLUE XPRO Tank Height: 210mm (8-1/4")20 AN Water Neck Adapter Blue Suits 360 Swivel Aeroflow Water Necks These AN water neck adapters from Aeroflow allow the use of AN hose and fittings for radiator hose applications. Specifically designed for use on all 360 degree swivel thermostat housings from Aeroflow Performance. Simply remove the barb fitting and screw in one of these AN adapters. 16AN Adapter is 52mm (2 3 16 from O ring to AN, 20AN adapter is 54mm (2 1 8 from O ring to AN.