Patriot Header Flange Kit - BB Ford 5/16 Thick Crimp Collar 1975-1979 Chevrolet C10

1975-1979 Chevrolet C10

4L60E / 4L80E

1998-2003 Ford F-150

The length of the shank underneath the head is 1 7/8" and the thread size is 7/16-20

Wrist Pin Style: Floating/Press

Patriot Header Flange Kit - BB Ford 5/16 Thick Crimp Collar 1975-1979 Chevrolet C10Patriot Exhaust H7871 Header Flange Pair Ford 429 460 Tube Diameter 2" Oval Port. Precision machined flanges 5 16" thick Supplied with our premium head gaskets A wide variety of tube diameters and port shapes are 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 and trucks including Camaro, Chevelle,