The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Pictures of your dark cast iron grey exhaust manifolds please?

**jayoldschool** · 08-07-2016, 05:17 PM

Do the manifolds have to come off to be blasted, or can they just be cleaned up in place? Wire brush, scotchbrite?

08-07-2016, 05:17 PM	#5
jayoldschool Moderator Join Date: Dec 2012 Location: ON, Canada Posts: 2,189	Re: Pictures of your dark cast iron grey exhaust manifolds please? Do the manifolds have to come off to be blasted, or can they just be cleaned up in place? Wire brush, scotchbrite?