Re: IML: Headers No... OEM Exh Manifolds Yes

[FltSgt@xxxxxxx]

Hola James

Due to the design of the 1957 to 1966 "D" bodied Imperials the exhaust 
manifolds are all center dump. If you seek a set of shortie block huggers the cost 
vs the results are not worth the HP gain.

MoPar continued with the power search with the other series of vehicles 
through the exhaust manifolds starting in 1967 with the magnum's, TNT's or whatever 
each division may have called the HP 383 or the HP 440.  All Imperials from 
1967 to about 1972 can benefit from the HP exhaust manifolds.  From about 1972 
until the last Imperial of 1978 the exh was a much better flowing unit.

Now back to the earlier "D" model Imperials with the very restrictive ctr 
dumps.  The Dodge trucks with either the 400 or the 440 from 1972 until 1978 all 
use an exh manifold that will bolt to any 1959 to 1965 413 or 1966 440. (  
http://www.1aauto.com/scripts/view_full_image.php?description_id=67558  ) This 
exh manifold bolts to the engine and fits the space on the driver's side for 
some low cost bolt on HP.  Add dual exhaust, either the "X" or antique "H" and 
you have a hot going Imperial that gets better emissions and MPG too.  Do not 
let the muffler guy talk ya into a set of short mufflers, stick with the long 
ones.  If they have a had time under standing you say like a Chry 300 of 1963 or 
whatever.

                                       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
'70 W100 w/318, NP 4 Spd, 3:55 & Short Box
'77 D150 w/360, NP 4 Spd, 12 Bolt Axle, OEM Buckets & etc


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