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Best factory exhaust manifolds for small block #1529681 11/07/13 12:45 AM 11/07/13 12:45 AM
Joined: Mar 2006 Posts: 253 Orange County, CA M Mike H OP enthusiast
Mike H OP enthusiast M Joined: Mar 2006 Posts: 253 Orange County, CA	I was wondering what were the best factory cast iron small block exhaust manifolds. I am putting together a 318 for best mpg, but am not interested in using headers.

Re: Best factory exhaust manifolds for small block [Re: Mike H] #1529682 11/07/13 12:48 AM 11/07/13 12:48 AM
Joined: Jan 2003 Posts: 42,714 Spokane Washington ScottSmith_Harms Mr Wizzard
ScottSmith_Harms Mr Wizzard Joined: Jan 2003 Posts: 42,714 Spokane Washington	Do you want vintage or do you care? The later 1990's era Magnum manifolds probably flow best but are not as clean/attractive looking as the 1968-71 340 style (which flow pretty decent and look the best IMO).

Re: Best factory exhaust manifolds for small block [Re: ScottSmith_Harms] #1529683 11/07/13 12:57 AM 11/07/13 12:57 AM
Joined: Mar 2006 Posts: 253 Orange County, CA M Mike H OP enthusiast
Mike H OP enthusiast M Joined: Mar 2006 Posts: 253 Orange County, CA	Prefer vintage-love the look of original.

Re: Best factory exhaust manifolds for small block [Re: Mike H] #1529684 11/07/13 01:02 AM 11/07/13 01:02 AM
Joined: Nov 2006 Posts: 1,458 oklahoma F forphorty pro stock
forphorty pro stock F Joined: Nov 2006 Posts: 1,458 oklahoma	http://www.moparmusclemagazine.com/techa...t/photo_17.html

Re: Best factory exhaust manifolds for small block [Re: Mike H] #1529685 11/07/13 01:16 AM 11/07/13 01:16 AM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	Pass side 68-70 340 HP manifold. Drivers side 92-93 mag ex manifold (the early one with the larger outlet). There's a set of em for sale (on here) for $100 + the ride & if I wasn't dead broke right now I'd be all over it. live every 24 hour block of time like it's your last day on earth

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