307 exhaust manifolds

[2fast4u14]

will olds 307 exhaust manifolds work on a olds 455?

 

[Wild Card]

no. thay will work on a olds 280,307,350 and a 403.

 

[DoubleV]

If by 307 manifolds you're refering to the early 'normal style' cast iron ones then the answer is yes. With much better options available though, they would be a very poor choice. If by 307 manifolds you mean the later stupid 'stainless' kind, then I'm not certain they're big enough to cover the big block exhaust ports and if for some reason they did fit, then you would be crazy to even consider them for a 455!