Chevy G-Body LS Swap 1978-1988 HeadersG Body owners need not look any further. We now have 304 S S headers for the LS swap. With your choice of 1 3 4", 1 7 8" or 2" primaries with 3" or 3 1 2" collectors, simply contact us and we will get the right set in your hands. Product features on this system includes: 100% Made in the USA Never Outsourced Made entirely of 304 stainless steel 3 8" thick laser cut flanges for a warp free seal Hand ported TIG welded inlets Optimized primary tube