Patriot Header Flange - 0.375 in Thick - 2 in Round Port - Big Block Chevy - Pair 2010183 Designed in conjunction with noted

Designed in conjunction with noted Ford drag racer Billy Glidden for raised port aluminum C3 SVO (Yates) cylinder heads

call them): Drive Hoop

Use only stock ratio rocker arms

Free rotation of the blade maintains a good

Fits Brake Boosters w/ 13/16" Hole for Grommet

Patriot Header Flange - 0.375 in Thick - 2 in Round Port - Big Block Chevy - Pair 2010183 Designed in conjunction with notedPatriot 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