Doug's Coated Headers - SB Ford Tri-Y LK22973 They are both forged from

They are both forged from aerospace alloy and heat-treated prior to thread rolling and machining

429-460 feature a precision-ground crown radius and surface finish

excellent mid-range power

with a replaceable absorbent pad that can absorb up to 10 quarts of oil

The large oil recovery pouch requires the right side mounting bolts to be accessed through plugs in the bottom of the pan

Doug's Coated Headers - SB Ford Tri-Y LK22973 They are both forged fromProduct Description: Headers Tri Y 1. 625 to 2 in Primary 2. 5 in Collector Steel Ceramic Small Block Ford Ford Falcon Ranchero 1960 65 Pair Dougs Headers, the most respected name in the header industry since the 60s, began in 1958 as a small muffler shop in East Los Angeles, California. Every Dougs header comes with all the necessary mounting hardware, collector reducers or connector pipes, premium gaskets and detailed installation instruction