Forums

  1. The Lobby

    1. Introduction Forum

      Welcome to the New BigMackTrucks.com Forums! Take a minute to create a new post here and introduce yourself. Tell us a little about yourself and your passion for old iron!

      10,288
      posts
    2. Truck Stories

      This is a forum for you to tell us about your truck's history! Every old truck has some type of story behind it and we would love to hear about it! Be sure to include photos if possible...

      3,634
      posts
  2. General Discussions

    1. Antique and Classic Mack Trucks General Discussion

      This is where you can talk about anything related to antique or classic trucks! If your topic is something specific, try to use the correct forum below.

      89,034
      posts
    2. Modern Mack Truck General Discussion

      This forum is for general discussions about modern Mack Trucks! Granite, Vision, Rawhide, Pinnacle...etc. Specific topics can be posted in the forums below.

      21,574
      posts
    3. Mack Truck Q & A

      This forum is for pressing questions concerning Mack Trucks...emergency maintenance questions, pre-purchase questions, etc...answers can be rated by users and the higest rated answers will show first!

      791
      posts
  3. Specific Topic Forums for Antique & Modern Trucks

    1. Engine and Transmission

      This forum is for engine and transmission related topics

      32,426
      posts
    2. Driveline and Suspension

      This forum is for driveline, carrier, front and rear axle, steering and suspension topics

      9,675
      posts
    3. Air Systems and Brakes

      This forum is for Air System and Brake related topics

      4,140
      posts
    4. Electrical, Electronics and Lighting

      This forum is for electrical, lighting and mobile electronics topics

      5,243
      posts
    5. Exterior, Cab, Accessories and Detailing

      This forum is for topics about exterior, cab, paint, trim, bumpers, emblems, visors and also topics about keeping that truck looking its best!

      8,297
      posts
    6. Fire Apparatus

      Forum for discussions about Fire trucks and specialized fire fighting equipment.

      8,403
      posts
  4. Odds and Ends

    1. Odds and Ends

      This forum is for non-truck related topics. Talk about interesting web sites, current events, tell jokes, post funny photos...etc.

      86,136
      posts
    2. Trucking News

      News and information from the entire trucking industry

      20,554
      posts
    3. Other Truck Makes

      This is the place to show off all your other trucks that are not Macks. They can be antique or modern trucks.

      14,991
      posts
    4. Tractors and Equipment

      This forum is for you to talk about Farm Tractors and other misc. equipment such as trailers, dozers etc.

      4,989
      posts
  5. Market Place

    1. 14,404
      posts
    2. 5,122
      posts
    3. Feedback Forum

      Please leave feedback for other members you have done business with here. This will help members trust (or not trust) other members. Please be professional with your remarks...good or bad.

      239
      posts
    4. Transportation Board

      This forum is for posting and finding transportation opportunities for your antique hobby trucks and parts around the country. Please keep rates reasonable when posting a route...

      743
      posts
    5. Watt's Mack Sales, Inc.   (38,881 visits to this link)

      Click here to visit the Watt's Mack Sales, Inc. Home Page featuring The B-Model Store and tons of other parts for Antique and Classic Mack Trucks including R-Models, Super-Liners, DM's and all current models!

    6. Product Announcements & Group Buys

      This is the forum where we will post new product announcements and Group Buy Information from the B-Model Store! You can discuss them and/or ask any questions you may have here.

      504
      posts
  6. Shows and Events

    1. Truck Shows and Events

      This forum is for topics about truck shows and other events of interest.

      5,509
      posts
  7. Site Related

    1. Site Related Topics

      This forum is for BMT related comments, suggestions or problems.

      1,846
      posts
    2. BMT Wiki Support Topics

      This forum will hold the support topics created from the Wiki System.

      293
      posts
    3. Test Forum

      This is the place to practice posting photos or testing code. Topics may be removed at any time...

      359
      posts
  • Upcoming Events

    No upcoming events found
  • Latest Topics

  • Latest Posts

    • that sounds like a cool project i bet that thing is a tq monster.  headers are probably still a ways off project on this one but i had been looking at some of the universal header kits.  the 2.5 inch rams horns with just a little cleanup look like they should flow pretty darn good, as good as any shorty block hugger header. so the headers are not high priority at this point but would certainly add a nice touch and a long/mid length header would certainly help when i get to it.  i would almost think there has to be a decent production header that will work its just no one has found/made it public knowledge. i bet if someone could pull the car in a big warehouse of headers you could find something, its tight on the drives side and the steering falls in kinda a weird spot but iv seen worse to deal with. 
    • Honorable mention too......  
    • Your cheap build is way cool. I'm all about cheap fun. I just bought a 1973 gmc K20 last week with a  modestly built 350 vortec in it. It has a lot of cam and was supposedly balanced and blue printed, sounds bitchin' when you open it up. I'll try and remember to take some pics tomorrow. 
    • there ok at low boost with safe compresion ratio's there actually take more abuse than a hyperutectic forged is ideal, but 9.4-1 5-7psi should be plenty safe. just have to be a little more careful they wont take the abuse a forged pistion will. at the levels i plan on running it should be ok.   15lbs of boost pushing 700+hp it would be a ticking time bomb but ill probably be round about 500hp or a little less. as long as timing and a/f are kept in check and doesn't see too many drag strip passes should be fine
    • yup i think i started watching roadkill during some point in there second season. probably subconsciously influenced my build to a certain extent.    my engine combo is mostly based off cheap and good with what i had, magazines say the vortec head lt4 hotcam combo makes 400 flywheel horsepower. with flattops, i would have used flat tops had my block needed boring i might have even biult a 383 at that point. but the standard bore just needed a hone and cleanup re-ring and bearing. so figure 4% less for for 1 point less of compression then take real world into account. its probably a honest 360-370 crank hp witch wont be enough to get me into the 12's but considering i have probably 1800ish in the entire engine package currently drop a weiand 142 or similar on it for roughly 2500 should put me well into my 12 second goal for a still cheap engine. at a pretty modest boost level that should be plenty safe plus roots blowers are fun on the street. iv got a couple other blocks laying around too so i could still build a forged 383 block and swap the blower setup to that and drop it in over a weekend if i wanted to later on
    • Took truck to a local fire company's car show on Sunday.     Long story short a guy gave me a set of thermodyne emblems.    Now I think I have all emblems on my hood, but on both sides there is 1 extra hole above thermodyne.   Any idea what goes there?
    • Will cast pistons be ok when you add some boost to them?  I was taught to use forged or they'll end up in the oil pan. 
  • Recent Status Updates

    • BillyT  »  Mackpro

      Happy birthday Tozzi! Mack pro,here in Hernando County Florida, we have some clouds on and off over the sun! I couldn't find any viewing glasses, people are buying them and scalping the price! I made a cardboard box "viewer" it gives  you a tiny picture on the inside of the box without hurting your eyes! My 12  year old grandson is all fired up about the eclipse! His 10 year old sister isn't as interested!, they got the day off school to look at the eclipse!
       
      · 0 replies
    • BillyT  »  Timmyb

      Timmy, those loaded trailers have always been  hard on fuel economy! But the empty ones are hard on earnings! LOL 😁 Had a temporary solution when hurricane Andrew hit S.Florida, they paid us the same to bring roof insulation to Miami that they paid us to deadbeat back to La grange Ga to get them more insulation! Was temporary,obviously, hurricane Andrew like most natural disasters created many millionaires! Every junk tri axle dump in America doubled in price and was on its way to Miami! Was a windfall for truck tire repairmen also as the nails and debris on the ground destroyed truck tires!
      · 0 replies
    • BillyT  »  grayhair

      Lost my post,Gray hair, to continue I would tighten the Strap so they couldn't Jimmy the lock and get in while I was sleeping! The guy that told me about the tanker also said a New York policemen told him If you shoot a criminal roll the body off on the side and leave! Politically incorrect for sure!
      · 0 replies
    • LopesDave

      @TimJHiebert hey Tim. Are you making those jets ticket draft board again this year? Thanks!
      · 0 replies
    • Bigjohn4300  »  Mackpro

      Ok, I'm sure there is a way to send a message direct from person to person so off topic conversation doesn't bog down an ongoing topic, someone gimme a hint as to how, or maybe what to look for to do so
      · 0 replies
  • Today's Birthdays

    1. alex g
      alex g
      (42 years old)
    2. mudslut28
      mudslut28
      (47 years old)
  • Forum Statistics

    • Total Topics
      46,231
    • Total Posts
      356,097