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What 4 barrel carb fits?

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  • What 4 barrel carb fits?

    Hello all, I have a 1999 Crowline 192BR with VP 5.0GL PTWR. The Block is cracked and through all the research I have found, replacing with a 5.7 is the way to go. I plan on using the 5.0 bolts on’s, including flywheel, oil pan, manifolds/risers, etc. The 5.0 has a nice stock 4 barrel spread bore intake and a 2 barrel Holley with an adapter. I want to go with a 4 barrel carb now. I was hoping I could use a Holley 4 barrel so my gas line, electric choke, and throttle linkage would hook up to it without modification. What Holley carb will work? Do I need an adapter to make the 4 barrel Holley bolt to this 4 barrel spreadbore intake? See picture. Also any more advise on this swap is appreciated.

  • #2
    you may need to make a new fuel line, but you may get away with tweeking what you have, however a holley marine 4175 series 600cfm to 650cfm would fit just fine.

    or you can use a spread bore to square bore adapter and bolt on a 4160 series 600cfm to 650 cfm as well.

    the 4150 series is a dual feed carb

    an edelbrock 1409 marine carb would fit too, however you would need to look at the throttle linkage and fuel line
    Cheesehead boating the Gulf Coast of FLA 27.51° N, 82.53° W

    1988 Cruisers Rogue 2420 -VP 290 DP now powered by custom 468 - https://forums.iboats.com/forum/owner...988-rogue-2420

    Past Boats
    1970 Wooster Hellion - Merc 9.8
    2002 SeaRay 190BR - 5.0 - A1G2 - "Cheeseheads in Paradise"
    1984 Avanti 170DLI -3.0 stringer- "Ship Happens"

    What’s behind you doesn’t matter.Enzo Ferrari


    • #3
      Thanks! So it looks like I need quicksilver #300-6QFT adapter if I go with 4175 series?

      what is the difference between the 4175 and 4160 other than 50cfm? Is one recommended over the other?


      • #4
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        Also the 4175 is spreadbore, anything else different?