The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Will these stock ex manifolds seal off without heat riser?

72farmer · 01-22-2016, 08:49 PM

Both right and left manifolds have long studs like each side had a valve.So the flat surface without the valves will not seal on 3 bolt exhaust flange the exhaust shop puts on?

01-22-2016, 08:49 PM	#3
72farmer Registered User Join Date: May 2009 Location: Hazel Green AL Posts: 286	Re: Will these stock ex manifolds seal off without heat riser? Both right and left manifolds have long studs like each side had a valve.So the flat surface without the valves will not seal on 3 bolt exhaust flange the exhaust shop puts on?