Re: IML: 1959 to 1966 Exhaust Manifolds

[FltSgt@xxxxxxx]

Rob & Others

The passenger side of the Imperials exhaust manifold is almost the same from 
1959 to the last one that rolled out the door.  The changes are: dropping the 
generator mount when they went to the alternator, extending the down portion 
of the manifold in 1967 on regular powered 440's,  issuing the HP manifold, 
going to a manifold that has smog fittings and the manifold that I'm speaking of. 
 At the glance they appear the same, but when laid next to each other one can 
see the upper portion will flow better.  

The drivers side of the early wedge powered Imperials dumps in the center due 
to the starter and steering fighting for the rear space.  That is why the 
center dump.  Staring with the 1967 year the Imperial shares the same as the 
other makes of MoPar.  That is why you and others may have the C-body HP 
manifolds.  The pick up trucks and etc all use the center dump exhaust manifold as the 
59 - 66 Imperials did, but the flow engineers have worked on the design.  A 
center dump will work on the passenger side due to all types of space.  A 
passenger side manifold mounted on the drivers side will dump at the A-frame 
location so that is out of the question.

You wrote about the tubed hugger headers.  They may be fine for some folks, 
but to me I would rather spend hours and hours looking for and installing an 
item that appears as if it may have rolled out the door with it on.

                                       Rodger & Gabby
                                       Colo Spgs

'47 De Soto Custom w/Fluid Drive & passenger door mounted swamp cooler
'62 Crown Coupe w/std A/C & Auto-Pilot
'66 Le Baron w/dual A/C & reverbed AM/FM
'70 Overlander - InterNational Dbl
'77 D150 w/360, NP 4 Spd, 12 Bolt Axle, OEM Buckets & etc


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