Exhaust manifold size ? 55 292 Thunderbird)

Posted By RossL Last Week

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RossL	Posted Last Week
Supercharged Group: Forum Members Last Active: Last Week Posts: 99, Visits: 7.2K	I always thought the passenger side exhaust manifold looked "different" than the drivers side. With the two of them side by side they are definitely different. P/N drivers side ECJ 9431 A, no markings on passenger side The drivers side "collector" looks larger. Passenger side looks "rounder" They both fit the engine and the down pipe fine. Did Ford make different versions of the exhaust manifolds?
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Exhaust manifold size ? 55 292 Thunderbird) By RossL ( Last Week )

They made both the larger size by ‘57. By DANIEL TINDER ( Last Week )

[quote][b]DANIEL TINDER (1/6/2026)[/b][hr] They made both the... By RossL ( Last Week )

RE: Exhaust manifold size ? 55 292 Thunderbird) By KULTULZ ( Last Week )