292 exhaust manifolds - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Furno68C20** · 01-24-2023, 09:22 PM

I’m currently swapping a 292 in place of a 250. 68 Truck originally had a 250. The 292 I have has a 3” 3 bolt triangular exhaust manifold flange. This causing a problem since the truck has a 2” 2 bolt flange.

From the research I’ve done I should be able to use a 250 exhaust man that will fit a 292 head and then mate to the OEM exhaust.

Did the 292 come with different exhaust manifolds based on what size the truck was? C10/2030 - 2” manifolds: c50/60 3” manifolds?
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01-24-2023, 09:22 PM	#1
Furno68C20 Senior Member Join Date: Mar 2019 Location: Somonauk IL Posts: 327	292 exhaust manifolds I’m currently swapping a 292 in place of a 250. 68 Truck originally had a 250. The 292 I have has a 3” 3 bolt triangular exhaust manifold flange. This causing a problem since the truck has a 2” 2 bolt flange. From the research I’ve done I should be able to use a 250 exhaust man that will fit a 292 head and then mate to the OEM exhaust. Did the 292 come with different exhaust manifolds based on what size the truck was? C10/2030 - 2” manifolds: c50/60 3” manifolds? Posted via Mobile Device



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