AEROFLOW Straight Female Water Fill Tee with Fill Cap Suit GM LSA V8 Aeroflow Fittings Fuel Etc.. This is a direct drop

This is a direct drop in with no modifications needed and includes the rubber seal

4150 Square Bore

wiring etc allowing them to mount them directly to the frame or firewall

It is designed to adapt a Chevy thermostat housing along with a Chevy thermostat

550 Series Cutter One-Piece Full Flow Swivel 150° Hose End -6AN

AEROFLOW Straight Female Water Fill Tee with Fill Cap Suit GM LSA V8 Aeroflow Fittings Fuel Etc.. This is a direct dropAF50 1002 Straight Female Water Fill Tee with Fill Cap Suit GM LSA Supercharged V8 The water filler tee is a unique billet piece that replaces the factory plastic item which is brittle and can fatigue over time. The added advantage being you cannot purchase the OEM item separately and instead have to purchase the entire line kit which is a costly expense.