LS Universal Hugger Headers Swap Conversion (LS1, LS2, LS3, LS6) Ram Horns LS Swap Hugger Conversion Headers Race Version, 304 Polished Stainless Steel 1 5/8" Primaries/2 1/2" Collector, Standard Graphite Manifold Gaskets Universal Headers (LS Engines Only) Not for SBC or BBC 1923-1954 Chevrolet Cars & Trucks