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Discussion Starter · #1 ·
What is the deal with 440 vs. 400 (tall vs short deck) exhaust? in particular...aftermarket headers for the early A's. What will fit what best? Just thinking out loud about a low deck 400 in a 64. What are the exhaust options. are they the same as the 440. fenderwells excluded.....
 
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Discussion Starter · #2 ·
i dont think there are any aftermarket headers for a b or rb motor available. the factory hp manifolds will fit. heres my 66 cuda with a 383

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Hi,
Would these exhaust manifolds work on a 64 Dart / 383 motor? What kinda car were they originally on? Do you have the part numbers?
Thanks
 
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Discussion Starter · #4 ·
should fit the 64. i dont have the part #s right now or know what they came off of but maybe some one else could help
 
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Discussion Starter · #5 ·
ok, you have three options. If you are super patiant and creative, you can buy a weld up kit and make some custom fit headers. second- you can buy a set of headers for like 500 bux that you have to chop your fenerwells up to fit in. third-0 you can get some "b" body HP manifolds. they will fit fine. so it really depends on how much work you want. i would say go with the hp manifolds. look it up on ebay. " dodge big block hp manifolds". good luck.
 

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you can buy a set of headers for like 500 bux that you have to chop your fenerwells up to fit in

where are you buying early big block a-body headders?? no one makes them yet. as far as those manifolds go how hard are those plugs to get to?? they look like a real pain in the pictures..
 
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Discussion Starter · #7 ·
headman makes a set. there is a bit of fender choping involved. at least thats what the description says. " headers exit through fender wells" and i would guess that you would have to either take the manifolds out, or pull the motor to change the plugs. just dont burn the plugs up.
 
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Discussion Starter · #8 ·
You have a 4th option I ran the exhaust out the front of the motor through the K-member then back under the car.
 
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