Patriot Header Flange - 0.375 in Thick - 2 in Round Port - Big Block Chevy - Pair R07C09YM The new Howe 5" coilover

The new Howe 5" coilover adapter works with coilover hardware to easily adapt to a 5" coil spring

Lever handle petcock for easy draining

Adjustable by-pass pressure using optional +10 psi and +15 psi springs

and other debris prematurely packing (clogging) the filter and often passing through the filter into the engine

Patriot Header Flange - 0.375 in Thick - 2 in Round Port - Big Block Chevy - Pair R07C09YM The new Howe 5" coiloverPatriot Exhaust H7899 Header Flange Chevrolet Big Block 396 502 Tube Diameter 1 3 4" 2" Same As Port. Precision machined header flanges Heavy duty 3 8" thick material Supplied with our premium head gaskets A wide variety of tube diameters and port shapes available; Patriot Exhaust products continue to offer the best value for the dollar of any brand in the industry. This year's product offering presents sixteen new applications for popular muscle cars