Hola
I'll start with 1959. With this year MoPar introduced the 413 in the
Imperial (and Chrysler) line. For the Imperials they had only an engine and
an carb. (For the Chrylers they had more). As time went on the 413 showed
up in the ...lesser MoPar line up, but with more horse power. As the 413 the
engine stayed in the cars until 1965. (In the mean-time in the lower end
MoPars they bored the engine out to 426 cuic inches). Starting with the 1966
year the Imperial engine became the 440 ( the older 413 just bored out again
).
The intake manifold is the same on all 413's, 426's and all 440's from 1959
until 1966. Starting with the 1967 440 the intake manifold was improved.
>From the start in 1959 until 1963 the carbs are basically the same carb.
Starting in 1964 the carb was changed in the manner the lever was controlled.
This style of lever operation is now present on all carbs. The 1964 to 1966
carb is the same size and operating manner.
What this means is that from 1959 until 1966 one may put a carb on any engine
for they all fit the same. If you cross the 1963 to 1964 line you must
modify the lever to make it work, but it fits to the intake manifold. The
same 1959 to 1966 rule also applies to the air cleaner housing fitting to the
carb.
Starting with the 1967 440 the intake manifold carb base was changed in size.
And the carb to the air cleaner housing base size. Also starting in 1967
some Holly's were used on some engines. And that was the way it was until
the thurmo what ever carb was used for smog fighting.
For the people who have come to stage of needing to rebuild their carb and
don't have the funds to keep the engine department 100% correct for the year,
they can "junk yard shop" from 1959 to 1970. Or if you have a 413 you can
find a 1969 440 intake manifold (which has better breathing) and install it
on that Imperial of yours with the six way seats. Or you can install the 440
engine in your 1959 Crown engine bay and keep the original 413 intake
manifold and carb.
All of this has been said before and before. This is just a repeated story.
I used 1959 to 1970 'cause it is hard to tell if there has been some parts
swapping.
Rodger & Gabby
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