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will it fit

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beatnic
Senior Member


Joined: 15 Jul 2007
Posts: 159
will it fit

have a 63 2dr hardtop with a automatic, i was thinking of sticking a set of early 351 w exhaust manifolds on the old 260, i heard they are almost the same as the 289 hi po manifolds but with a slight twist somewhere on them. will they fit my car

Post Thu Mar 12, 2009 8:52 pm 
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outlawcaveman
Member


Joined: 13 Feb 2008
Posts: 54
Location: South Arkansas

According to my info., the exhaust port
size on your little 260 is the same size as the ports
on 351 Windsors, therefore, the manifolds should fit the heads.
As far as other physical features such as overall size, turns and
bends, and flange outlet position, all you can do is pull one of your
old manifolds and position the 351 manifold to the head and see if
you have clearance issues. It is highly unlikely the exhaust pipe flange position would be the same, therefore requiring replacement of exhaust pipes.
As for the reason for such a swap, the only reason I could even guess that you would want to do this would be for an increase in power. That said, you don't have much of a platform to start with in a meager little 260. With all the effort and cost to do this swap, and for maybe an increase of 5 hp, I would consider headers long before changing to another style of manifold, even though the 351 manifold is more free-flowing.
For performance, I would consider a 302, which should fit in the engine bay that the 260 sits in, with only the transmission bolt up (5bolt 260 vs 6 bolt 302 bellhousing) being the major issue.
To sum it up, yes, they will bolt up to the heads, but, is it worth it ??
NO in my opinion. Not for the cost and effort.
Good luck in whatever your decision. Shocked
_________________

Post Fri Mar 13, 2009 5:20 pm 
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beatnic
Senior Member


Joined: 15 Jul 2007
Posts: 159

the car is pretty much original with 58,000 miles, trying to keep the look but was thinking of the hi po exhaust manifolds but they are expensive, trying to see if a 50 dollar set of 351's would work

Post Sat Mar 14, 2009 5:55 pm 
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