GM/CHEVY 454 ENGINE 4BBL INTAKE MANIFOLD 1973-85 #14340 | eBay
I just replaced my 79 454 manifold. I found this link on ebay give him a try. If it's an exhaust manifold
I have a set that I will sell cheap. I would lose the
cast Iron manifolds and install hedders with the heat wrap and spark plug boot insulators and move all that heat out of the engine compartment. probably run cooler as well. I have seen those cast iron manifolds almost glow from the heat. Hedders will let that big block breath.