Page 1 of 2 12 LastLast
Results 1 to 10 of 20

Thread: Imco or Indmar

  1. #1
    WishIknew
    Imco power flow or indmar exhaust which is better or worse???????

  2. #2
    ULTRA26 # 1
    Imco power flow or indmar exhaust which is better or worse???????
    Most people I know who have Imco Power Flows, like them. What would they be going on?

  3. #3
    WishIknew
    Most people I know who have Imco Power Flows, like them. What would they be going on?
    454 mpi i/o have imco now have indmar in garage didnt know if worth time to change//// no problems with imco

  4. #4
    BrendellaJet
    What imco's?
    If they are the powerflows with the stainless risers then keep the Imco's. I read elsewhere however that the Indmar manifolds you have are good to around 550 hp, maybe 600. If less than that its probably not worth the effort to change.

  5. #5
    BDMar
    Imco is a better quality and will make more power.

  6. #6
    ULTRA26 # 1
    What imco's?
    If they are the powerflows with the stainless risers then keep the Imco's. I read elsewhere however that the Indmar manifolds you have are good to around 550 hp, maybe 600. If less than that its probably not worth the effort to change.
    I would have to agree with this

  7. #7
    WishIknew
    What imco's?
    If they are the powerflows with the stainless risers then keep the Imco's. I read elsewhere however that the Indmar manifolds you have are good to around 550 hp, maybe 600. If less than that its probably not worth the effort to change.
    All i know is it says power flow on the side and they are black and its a stock motor so 385hp????

  8. #8
    uLtRADeNniS
    I ran the IMCO Powerflow kit in my old boat on a mild 454.. I defiantly

  9. #9
    BrendellaJet
    Don, as long as they are in good shape, run em. There are people running powerflows with over a 1000 hp. Might want to put them on the 502 with the whipple if you are still going that route...

  10. #10
    WishIknew
    Don, as long as they are in good shape, run em. There are people running powerflows with over a 1000 hp. Might want to put them on the 502 with the whipple if you are still going that route...
    No I am going to keep the Bassetts for the jet dont want no more places for water to get in

Page 1 of 2 12 LastLast

Similar Threads

  1. Indmar 454 Chevy
    By biggraypig in forum Jet Boats
    Replies: 9
    Last Post: 10-09-2007, 01:25 AM
  2. Anybody know about Indmar 454s
    By 73BBC in forum Gear Heads
    Replies: 2
    Last Post: 06-21-2006, 11:30 AM
  3. Indmar 502???
    By jbone in forum Jet Boats
    Replies: 5
    Last Post: 06-26-2005, 08:45 PM
  4. Indmar 502 question
    By rposton1 in forum Sandbar
    Replies: 6
    Last Post: 05-28-2004, 07:29 PM
  5. Indmar Question..
    By rposton1 in forum Sandbar
    Replies: 6
    Last Post: 05-06-2004, 12:01 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •