----- Original Message -----
Sent: Monday, March 19, 2007 4:55
PM
Subject: IML: 1959-1966 vs 1967-78 Power
Goodies
Hola Class
The first series wedge V8 ( aka 1959 413 ) to the first series 440 ( aka
1966 ) use an center dump only manifold on the driver's side. You may
buy all the C-Body HP manifolds that epay has to offer for the next six years
and you will never find one that fits. The only way to gain exhaust
manifold bolt on OEM performance is to get the 1972- 1978 Dodge Truck B/RB
center dump manifolds. An yes they are of the HP Design.
If you have an 1967 - 1978 Imperial with-out the HP option ( single
snorkel air cleaner and factory single exhaust muffler is an give away ), then
look for the C-Body Exhaust manifolds of that era. The un-knowing
purchase the B-Body driver's exhaust manifold and cuss or whatever when they
will not fit.
If you have either of the above cars and want the factory look with bolt
on power, the above is the answer. There is no bending, cutting or what
ever.
The best diam for the exhaust system is to keep the inside diam of the
factory exhaust manifolds to the rear ( dual exhaust ). If you think an
larger diam is better, then do it. Just do not complain mently at an
later time that your car has no bottom end power.
The "Hugger" tube headers sold by some are an tube copy of what MoPar
started back with the V8's ( 1951 ). They are good from mid-range to
redline due to their diam. If that is how you plan on driving to the
"Salt Flat's", then get them.
Due to the weight of our cars ( MoPar Perfornace sez ) the MoPar cam
assembly number P4286675 is the best if you have an 413 or an 440.
And the carb that came on the car or the cross-over Carter AVS ( or the
like size "Eddy" ) is the best size.
The last bang for the buck item is the factory dual snorkel air
cleaner. They made a dual snorkel verson of your single snorkel in every
year they were making snorkeled air cleaners.
There is more, but it is supper time ...
Uncle Rodger & Aunt Gabby
COS
ps
The 1966 or older Imperial is an "D-Body", not an "Y". The last
series starter motor is at NAPA too ( No hard to find mistery number to seek
).
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