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I recently removed my 429 motor from a 1970 ford torino gt for rebuild. I noticed that one exhaust manifold is a C9VE 9431 A. However upon inspection of the second manifold, I found the part number to be D4VE 9430 A1B. First, should I replace the D4VE manifold with a C9VE one? or is the D4VE an exact match that I can use on the motor? Also, with 2 different manifolds, will the alignment be correct for the exhaust? Thanks you......
The C9 may have bigger ports than the D9 depends on the 429 Hp.. I would check the ports and work off that........:)
the factory exhaust manifolds have a history of cracking.and i was having trouble finding them back in the 70's and 80's
In my humble opinion, you should replace both of them with a set of tuned, long-tube headers and let the motor breathe a little. Then, an Edelbrock RPM or Weiand Stealth intake will allow breathing on the other end and you'll be in business. :DQuote:
Originally Posted by 70gt429