Patriot Exhaust Tri-5 Headers - 1.625 in Primary - 2.5 in Collector - Metallic Ceramic - Small Block Chevy - Chevy Fullsize Car 1955-57 - Pair 41010010 640" ID that works with

640" ID that works with 947

875 in x 3

it provides a bulletproof method of adjusting secondaries on all Double Pumper

Coolant Temperature

They are removable and not fitted with speakers

Patriot Exhaust Tri-5 Headers - 1.625 in Primary - 2.5 in Collector - Metallic Ceramic - Small Block Chevy - Chevy Fullsize Car 1955-57 - Pair 41010010 640" ID that works withPatriot Exhaust H8025 1 1 5 8" Tri 5 Header Chevrolet Passenger Car Wagon Small Block Chevrolet 55 57 Metallic Ceramic Coating. Our popular 55 57 Chevy passenger car headers for small or big block and LS1 LS6 swaps. Durable 18 gauge tubing Comes complete with gaskets, header bolts and collector reducers. Available in three finishes raw steel for individual customizing, Hi Temp Black coating or Metallic Ceramic Thermal Barrier coating Limited One Year