Porting 368 Intakes
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500, 472, 425, 368 Discussion, Porting 368 Intakes in Cadillac Engine Technical Discussion; I picked up a 368 carb intake this weekend. Thought I might try porting it just for fun and trying ...
  1. #1
    ferrisworld is offline Cadillac Owners Fanatic
    Automobile(s): 1979 Sedan Deville
    Join Date
    Feb 2005
    Location
    Sacramento, CA
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    358

    Porting 368 Intakes

    I picked up a 368 carb intake this weekend. Thought I might try porting it just for fun and trying it out on my 425. Unbelievable how much lighter it is than the 1976 eldo intake I got. Any suggestions on porting? I noticed the ports are a little more than 1/8" smaller both ways, so there should be enough metal to open that up at the face, and if I'm careful I could probably do the same farther in. I was also thinking I could shorten the wells or whatever you call them (the round holes under the carb). Like if I shortened them, it would make more clearance between the bottom of the intake the the bottom of the holes.

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  3. #2
    drmenard is offline Cadillac Owners Enthusiast
    Automobile(s): 95 fleetwood 81 deville
    Join Date
    May 2003
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    Re: Porting 368 Intakes

    The ports are so small all your going to do is loose power.. If you want more power you want to flow more .. With that intake you will flow a lot less..

  4. #3
    ferrisworld is offline Cadillac Owners Fanatic
    Automobile(s): 1979 Sedan Deville
    Join Date
    Feb 2005
    Location
    Sacramento, CA
    Posts
    358

    Re: Porting 368 Intakes

    Yeah but if I port it won't it improve the flow?? Did you read my whole post where I talk about porting it?? It's even in the title. Are you saying that even if I port it, the ports will still be the stock size? I'm trying to find out in what way it would be recommended to port it.

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