1970 340 header pipes

as @4spdragtop mentioned tti has you covered.

here's the link:

https://www.ttiexhaust.com/Classics_ExhaustComponents.htm#Exhaust-pipes
i've used them before, just told them what i had and provided the manifold casting numbers. they fit exactly as they should have and they provided gaskets as well. couldn't ask for an easier time.