292 exhaust manifold Help!

[Wrenchbender Ret]

The 292 engines in the med. duty trucks (1 1/2 ton up) had a larger ex. outlet & it pointed straight down. The 1 ton & smaller interchanged with the 250 ex. manifolds although there are some minor differences. Some where around 71 they switched to a 3 bolt flange. Either will work if you change the flange on the exhaust pipe. I always tried to use 250-230 manifolds if you use used ones. The ex. on 292 engines run very hot & generally are warped or cracked.