Factory 455 Exhaust manifolds

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oldsmobile joe

Royal Smart Person
Nov 12, 2015
2,067
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mpls
if your looking for new, check out thorton. i have their cast iron w/z manifolds on my 79 calais with a 455. its nice working with fresh iron instead of old rusted stuff.
 
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Reactions: 1 user
Oct 14, 2008
8,806
7,746
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Melville,Saskatchewan
Not even sure how long the LS bandwagon will last since GM is already phasing out LS engines in new cars for the gen 5 LTs. Some of the LS guys are already complaing that supplies of cheap junkyard LS engines are starting to dry up.
I just recently heard that they won't fit a G body.

I have a set of W/Zs I'd let go if the offer is good.
On a BBO, yes, SBO, no.
 

DJHull

Master Mechanic
Apr 28, 2015
255
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Lansing, Mi
I am looking for a set of 455 manifolds. True Duels not with the crossover Blocked. TIA
I got a set from Dick Miller Olds. He will polish them for an extra $100 or so. He also sells a set of metal plates to help with air flow. One on each side and you need two exhaust gaskets. Forgot how much I paid for them.
 
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