Chevy LS LS1, LS2, LS3, LS6 Header Flange Header Bolt Pattern: Stock  Port: Circle Pot Sizes: Choose from 1.75”, 1.875" and 2” Flange Thickness: 3/8” Thick Material: Choose from Mild Steel or 304 Stainless Steel  Primary...

Ford 5.0L Coyote and 5.2L Header Bolt Pattern: Stock  Port: Circle Port Size: Choose from 1.875 or 2" Flange Thickness: 3/8” Thick Primary Tubes: Not included Gaskets: Not included Hardware: Not Included  Sold as: Individual 

Chevy 6.2L LT1 V8 Small Block Header Flange Header Bolt Pattern: Stock  Port: Oval Pot Sizes: Choose between Flange Thickness: 3/8” Thick Material: Choose from Mild Steel or 304 Stainless Steel  Primary Tubes: Not included Gaskets: Not...

Header Bolt Pattern: Stock  Port: Oval 1.79" x 1.48" Flange Thickness: 3/8” Thick Primary Tubes: Not included Gaskets: Not included Hardware: Not Included  Sold as: Individual