Quick view Granatelli Motor Sports Granatelli GM LS Aluminum Steam Vent Adapters w/Coolant Crossover -3AN Male to 1/8NPT - Black (Pair) - 595006 Compare $48.00 $45.99 LS Steam Vent Adapters, Coolant Crossover Support, -3 AN Male to 1/8 npt Fittings, Aluminum, Black, Sold as Pair. Add to Cart Add to Cart