Cheapest ways to increase power

Slant 6 Engines

  1. RustyRatRod

    RustyRatRod I was born on a Monday. Not last Monday. FABO Gold Member

    Messages:
    77,048
    Likes Received:
    53963
    Joined:
    Jun 7, 2010
    Location:
    Georgia
    Local Time:
    2:36 PM
    Can't argue with any of those points, but still, more people will be around the hood of a slant powered hot rod than any other at a car show...simply because they are something different.
     
    • Agree Agree x 1
    • 72DartCustom

      72DartCustom Well-Known Member

      Messages:
      130
      Likes Received:
      4
      Joined:
      Apr 2, 2010
      Local Time:
      11:36 AM
    • RabidScott

      RabidScott Well-Known Member

      Messages:
      213
      Likes Received:
      102
      Joined:
      Sep 30, 2004
      Location:
      Tracy CA
      Local Time:
      11:36 AM
      The original poster's question:

      For a second there I thought the question was "How superior is a V8 to a slant six?"

      Then I realized there's just a bunch of retards with poor comprehension skills responding to this thread.
       
    • dustoff440

      dustoff440 Well-Known Member

      Messages:
      2,029
      Likes Received:
      28
      Joined:
      Apr 15, 2009
      Location:
      central fl
      Local Time:
      2:36 PM
      I have also seen a guy who machined his stock /6 manifold to accept a 350 cfm Holley 2 barrel which has the same bolt pattern as the 500 cfm version
       
    • JeffTheMarine

      JeffTheMarine Well-Known Member

      Messages:
      630
      Likes Received:
      10
      Joined:
      May 28, 2009
      Location:
      Pacific Northwest
      Local Time:
      11:36 AM
      Actually they just make an adapter plate to put a Holley on the stock 2bbl manifold so there is no machining required.



      Jeff
       
    • RustyRatRod

      RustyRatRod I was born on a Monday. Not last Monday. FABO Gold Member

      Messages:
      77,048
      Likes Received:
      53963
      Joined:
      Jun 7, 2010
      Location:
      Georgia
      Local Time:
      2:36 PM
      With such a low post count, perhaps you missed the post regarding name calling. I refer you here:

      http://www.forabodiesonly.com/mopar/showpost.php?p=1216297&postcount=1

      There have been some good answers here with some great info for the OP. I think it would have been a bit more constructive to put your own two cents worth in about the OP's original question instead of trying to stir the pot by name calling. That was uncalled for. Besides that, there may well be someone here with a family member who has Down's syndrome. Did you ever think of that?
       
    • RabidScott

      RabidScott Well-Known Member

      Messages:
      213
      Likes Received:
      102
      Joined:
      Sep 30, 2004
      Location:
      Tracy CA
      Local Time:
      11:36 AM
      I hope no offense was taken by any actual handicapped people, I used it in the slang sense and figured it would be taken as so.

      I just didn't realize that asking "How to get more power out a Slant Six" in the "Slant Six section" would lead to everyone simply telling him to rip it out and install a V8. Just seems... out of place, you know?

      I'll put my guns away now, I don't hang out on the computer to try and make enemies. Peace?
       
    • Grinder

      Grinder Banned

      Messages:
      642
      Likes Received:
      0
      Joined:
      Nov 11, 2005
      Location:
      Round Rock,TX
      Local Time:
      12:36 PM
      Get used to it man. The V8 guys will never leave this section alone. I swear even if you ask "what kind of spark plugs should I use in my slant" they will say swap a v8 in there!
       
    • Bill Dedman

      Bill Dedman bill dedman Legendary Member

      Messages:
      3,997
      Likes Received:
      63
      Joined:
      Oct 16, 2007
      Location:
      Conway, Arkansas
      Local Time:
      12:36 PM
      You need to talk to Tom Wolfe (Shaker223) whose basically stock 225-inch /6 engine-with a Buick Turbo in a 3300-pound '70 Dart ran 12.95.

      His car had a 225 with a 904 and stock converter, stock head, stock 225 cam, and a stock exhaust manifold with a turbo flange welded to it (NO header). I think you are selling these turbocharged basically stock slant 6s way short on how they can perform compared to a stock 340.

      I never saw a stock 340 run faster than 14.40s, and I HAD one.

      Tom's /6 was a lot faster than that (12.95) and had minimal mods (runs 11-flat into a 15mph headwind, now...)

      I'm of the opinion that an A-body turbocharged /6 with only about $2,000 in mods can run mid 11s. I am not sure you can do that with a 340/360.:read2:
       
    • RustyRatRod

      RustyRatRod I was born on a Monday. Not last Monday. FABO Gold Member

      Messages:
      77,048
      Likes Received:
      53963
      Joined:
      Jun 7, 2010
      Location:
      Georgia
      Local Time:
      2:36 PM
      If it makes anybody feel better, I scrapped my plans for a 451 stroker to go with a slant.
       
    • dgc333

      dgc333 Well-Known Member

      Messages:
      4,124
      Likes Received:
      27
      Joined:
      Jan 12, 2005
      Location:
      Pembroke, MA
      Local Time:
      2:36 PM
      I will agree that was very true when I had the \6 in my car, but I didn't get the driving satisfaction that I do from the 360. I even had a sticker on the valve cover of the slant 6 that stated; "This is not Your Grandma's Slant 6". But after a year or so of hanging around the car waiting for folks to go "Wow" when they saw the built \6 it was time to build an engine that had enough power to scare the crap out of me! :)

      [​IMG]
       
    • RustyRatRod

      RustyRatRod I was born on a Monday. Not last Monday. FABO Gold Member

      Messages:
      77,048
      Likes Received:
      53963
      Joined:
      Jun 7, 2010
      Location:
      Georgia
      Local Time:
      2:36 PM
      I hear ya, Dave. ...and a real nice car you have, too.
       
    • vynn3

      vynn3 Well-Known Member

      Messages:
      488
      Likes Received:
      30
      Joined:
      May 25, 2004
      Location:
      TEXAS
      Local Time:
      7:36 PM
      FYI, RabidScott, I'm a dyed-in-the-wool slant loyalist, and I'm sick and tired of V8 guys insisting that every slant should be replaced with a small-block (especially in a so-called slant six forum like this).

      HOWEVER, I'm also sick of slant newbies asking how to make their stock slant a Honda-killer (usually on a limited budget). If you have to ask, you probably don't have the resources to do so.

      I LOVE my slant, but if the goal is to beat up on your average, modern import, hopping-up a slant will leave most folks unfamiliar with slants VERY disappointed, and they end up swapping in a V8 anyway (or getting another car altogether). Making slants fast takes more time, money, experience, experimentation and patience than a V8 swap. Simple as that.

      What most V8 guys don't seem to get is that making as much power as cheaply as possible isn't everybody's goal. People who love slants don't normally have that "never enough power" syndrome (Slantzilla and a few others excluded :) ). Some of just like being different. If I could figure out how to get that through the heads of the V8 pests who constantly insist on an engine swap, maybe they'd leave us alone for a while. But I doubt it.

      But just because someone HAS a slant doesn't mean a slant is right for them. It takes a passion to work with these engines. My comment was to save the OP some time and effort if that's not the case. If it is, he's not going to get the answer in single forum post.
       
    • JeffTheMarine

      JeffTheMarine Well-Known Member

      Messages:
      630
      Likes Received:
      10
      Joined:
      May 28, 2009
      Location:
      Pacific Northwest
      Local Time:
      11:36 AM
      I agree, you have to have a passion for the slants and making a ridiculous amount of power out of a slant is not a cheap overnight bolt on. However if you want to have an amazingly reliable engine that still gets good gas mileage then you want a slant. I have an 83 D150 pickup with a slant and a granny low 4 speed with the super six setup and as long as I stay under 70mph I get about 18mpg in it. ON TOP of the fact that some dick drained my oil when I left it at the bar one night and I drove it almost 60 miles before I found out that it had been drained because aforementioned dickhead brought an oil pan to make sure I didn't notice that it had been drained. I found out then added oil back to the motor and it is still running strong. That is why I love slants and I will stand by them. They are beautifully engineered motors that will stand the test of time unlike the new throw away POS Hundas that crap out at 100k miles.



      Jeff
       
      • Agree Agree x 1
      • JR

        JR Pissed off senior member.

        Messages:
        4,684
        Likes Received:
        14
        Joined:
        Oct 17, 2005
        Location:
        East Renton,WA (Seattle)
        Local Time:
        11:36 AM
        DING, WE HAVE A WINNER! :cheers:








        Oh yeah I would also just like to say to anyone that is offended......

        Retard Retard Retard Retard Retard Retard Retard Retard Retard Retard Retard Retard
         
      • '70-Challenger

        '70-Challenger Well-Known Member

        Messages:
        123
        Likes Received:
        0
        Joined:
        May 25, 2010
        Location:
        mississauga, ontario
        Local Time:
        1:36 PM
        Well here's the thing too, i have always hated v6's, and inline 4's.
        So inline 6's aint my thing really. I only tolerated the slant 6 because it was a legend.

        But i'm a big block v8 guy. I would slam a 426 Hemi in ANYTHING(well any mopar) if i could. Smallest v8 i would ever use is a 318.
         
      • CUDAGUY

        CUDAGUY aka Prince Valiant

        Messages:
        613
        Likes Received:
        4
        Joined:
        Apr 30, 2009
        Location:
        Portland,OR
        Local Time:
        11:36 AM
        ^^^^underdog hater:bootysha::-D
         
      • '70-Challenger

        '70-Challenger Well-Known Member

        Messages:
        123
        Likes Received:
        0
        Joined:
        May 25, 2010
        Location:
        mississauga, ontario
        Local Time:
        1:36 PM
        8)
         
      • BBBCUDA

        BBBCUDA Well-Known Member

        Messages:
        359
        Likes Received:
        2
        Joined:
        Jul 23, 2010
        Location:
        Vermont
        Local Time:
        2:36 PM
        Well, for a brief moment, I'll try to stick to the origional question. Cheapest way, 1: gears. Slants come with lousy gears for acceleration, 2.94's in the ones I had. If you are really cheap, (like me), a 60's International Scout (model 80) has almost the same track as an A body, the perches are even close enough to work. They come with a 4.27 gear ratio. With the help of a lift, I swapped one in in a little over an hour, and WOW, what a difference. Later I milled .100" off the head, (at least lap the valves to make sure they are sealing), added a 2 barrel, and had a reasonably "snappy" car. The 5.0 Camaro's were popular around here at the time, and I never even came close to getting beat by one. Not saying much, but there it is.

        That said.... I stuffed a bone stock, $100 '65 383 2 bbl into a 4 door '72 Valiant, with the only power adder being a $30 iron 4 bbl intake, it ran in the 14's at 94 mph. using only 1st and 2nd gear due to the 2.76 rear gears. It got 20 Mpg, and was my daily driver for 4 years. Fast with a Slant will cost some jingle, unless you really can turbo one as cheaply as they say. I'm following a turbo /6 build right now as it interests me alot.
         
      • dgc333

        dgc333 Well-Known Member

        Messages:
        4,124
        Likes Received:
        27
        Joined:
        Jan 12, 2005
        Location:
        Pembroke, MA
        Local Time:
        2:36 PM
        Well here are some pictures of the turbo \6 I mentioned above. One correction; the engine is now in a 39 Studebaker pic-up not a 39 Willys that I mentioned.

        The intake and header were fabricated by Rick and he uses a FAST efi controller to run it. The turbo is off a Buick turbo v6 and I believe the inter-cooler is from a Saab.

        Enjoy the photos:

        [​IMG]
        [​IMG]
        [​IMG]
        [​IMG]
        [​IMG]
         
      • SpeedThrills

        SpeedThrills FABO Gold Member FABO Gold Member

        Messages:
        1,878
        Likes Received:
        559
        Joined:
        Jun 3, 2008
        Location:
        Very South Jersey
        Local Time:
        2:36 PM
        You just have to realize that if you're into something that isn't mainstream, you'll get comments like "put an 8 in it". You'll go nuts if you let it bother you. I used to modify VW Bug engines when I was younger, because they were cheaper to work on. So, I know how you feel. (The first car I drove after my warmed-over Bug was my 70 Challenger R/T w/ 383, 4 spd and 3.91 gears. I never went back!)
         
      • dustoff440

        dustoff440 Well-Known Member

        Messages:
        2,029
        Likes Received:
        28
        Joined:
        Apr 15, 2009
        Location:
        central fl
        Local Time:
        2:36 PM
        Dave thanks for posting the pics of the /6 with the Buick supercharger. I am convinced that when my V8 blows or wears out I will do something similar. I have loved /6's since my first car a 72 Gold Duster and have been talked out of doing a performance version of one but that won't work next time.
         
      • Taz

        Taz Member

        Messages:
        11
        Likes Received:
        0
        Joined:
        Jul 9, 2014
        Location:
        Mannville, AB
        Local Time:
        1:36 PM
        Hi Raleigh Rocket: You suggested milling a 225 head 0.100 to increase power. I want to mill my head but have a couple of other questions if you don't mind. My current compression is 8.2:1. What will 0.100 mill raise compression to? Can I use all stock valve train?
        Peace,
        Taz
         
      • Furiousvip

        Furiousvip Well-Known Member

        Messages:
        115
        Likes Received:
        1
        Joined:
        Oct 8, 2007
        Location:
        Upland,Ca
        Local Time:
        11:36 AM
        For "Seat of the pants" power on a true budget start by getting rear end gears (3.55/3.91/4.10) a two barrel manifold and carb and a free flowing manifold (Dutra Duals or Headers) and single exhaust. That will have you back on the road in the shortest amount time and money. The other upgrades you can do later as money allows.
         
      • ir3333

        ir3333 Well-Known Member

        Messages:
        5,076
        Likes Received:
        1590
        Joined:
        Jun 1, 2008
        Location:
        ontario,canada
        Local Time:
        1:36 PM
        ..although they won't make it faster,gears will make it quicker!
         
      1. This site uses cookies to help personalize content, tailor your experience and to keep you logged in if you register.
        By continuing to use this site, you are consenting to our use of cookies.