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Technical Engine plate and firewall

Discussion in 'Traditional Hot Rods' started by Rat Chevelle, Aug 24, 2023.

  1. Rat Chevelle
    Joined: Oct 25, 2015
    Posts: 3

    Rat Chevelle

    Hello,
    I am currently positioning the engine on my Rat Rod build and as I set the engine back for a better wheelbase my back engine plate quickly runs into my firewall.
    Then I started thinking what if I position it so that the back plate becomes my lower firewall.
    Since I'm just doing the mock up and measuring and because i plan on having the floor and firewall attached to the frame -as opposed to the cab, it might just be easier to use a ⅛ steel plate as both my engine plate and firewall; then just bolt the floor and upper firewall (which would be on the cab) to the engine plate.
    What would you think about this.
    The vehicle would be a 46 Chevy truck cab on a 2x4" Z'd frame with a traditional straight axle front end and a drag race 4 link suspension with a 9" in the back, it will also have a full cage and a tunnel rammed fuel injected BBC with a TH400
     
  2. FrozenMerc
    Joined: Sep 4, 2009
    Posts: 3,400

    FrozenMerc
    Member

    Threads about rats tend to get closed and deleted quickly.

    Plenty of other websites discuss this sort of non-sense. This isn't one of them.
     
  3. Rat Chevelle
    Joined: Oct 25, 2015
    Posts: 3

    Rat Chevelle

    Wow that was a quick & friendly welcome. No wonder these threads get deleted and closed quickly.
     
  4. Joe Blow
    Joined: Oct 29, 2016
    Posts: 1,794

    Joe Blow
    ALLIANCE MEMBER

    Rules:
    1. No profanity in subject lines.

    2. No political/religious/racial posts at all. No exceptions.

    3. No*****.

    4. We cover traditional '65 and older American cars only. All other threads will be deleted. We don't cover rat rods, muscle cars, mustangs, or VWs.

    5. No commercial posts.

    Some good reading material for you:

    https://www.jalopyjournal.com/forum/threads/the-h-a-m-b-rules-guidelines.44274/
     
  5. Rat Chevelle
    Joined: Oct 25, 2015
    Posts: 3

    Rat Chevelle

    Yes, duly noted...
    My truck's plans were transitioning from a Rat to attempting to become a Hot Rod.
    It all started with my removing the BBC from my Street/Strip Camaro in order to replace the six inline that was originally planned, choosing a nice HOK shimrin paint color as well as purpose buying parts as opposed to building with whatever I could find.
    But this was refreshing, a timely reminder to probably keeping my build unapologetically primed and fun instead of chrome shiny and uppity.
    Thanks for setting me straight.
     
    VANDENPLAS, vtx1800 and Bob Lowry like this.
  6. Joe Blow
    Joined: Oct 29, 2016
    Posts: 1,794

    Joe Blow
    ALLIANCE MEMBER

    Don't run off mad. If you keep "rat rod" out of posts, you'll find this a great place to learn and share. This forum is absolutely not all chrome shiny.....and not uppity by any means. It's a 65' and older traditional hot rod site.....if that floats your boat, I'd stick around.
     
    Last edited: Aug 24, 2023
  7. 19Eddy30
    Joined: Mar 27, 2011
    Posts: 3,812

    19Eddy30
    Member
    from VA

    Just keep the Rat Rod out,
    Are you calling your Rod a "Rat Rod "" because of BBC ??
    Your Avatar pic looks like a Hot Hod
     
  8. Illustrious Hector
    Joined: Jun 15, 2020
    Posts: 585

    Illustrious Hector
    Member

    The only reason anything should be called a rat is if it has a big block. In my youth snitches and stool pigeons were referred to as rats, the lowest of low life. People at car shows( the unwashed and unknowing) are surprised that some of us feel the same offense as if they used the N word.
     
  9. Mike VV
    Joined: Sep 28, 2010
    Posts: 3,329

    Mike VV
    Member
    from SoCal

    Mr. Chevelle...

    To actually answer your question -
    If...I read your question correctly, NO...I would NOT connect your rear motor plate to the any part of the body.
    The engine torque will twist (yeah, even with a roll cage) the frame upon depressing the accelerator pedal hard. I seriously doubt you want the body twisting with the frame / chassis...for MANY reasons.
    Both the front and rear plates should be a frame attachment only.

    Mike
     
  10. DDDenny
    Joined: Feb 6, 2015
    Posts: 22,201

    DDDenny
    Member
    from oregon

    It amazes me that people still call their car a RR and expect people to be excited about it!
     
  11. lostone
    Joined: Oct 13, 2013
    Posts: 3,544

    lostone
    Member
    from kansas

    Personally I don't care what they want to call their cars, it's their car, they can call it a truck if that's what they want.

    Point is in this age 80% of the people out there has no idea what the true definition of hot rod, custom, low rider, rat rod, work in progress etc is or even means anymore.

    Go to car shows and how many times does some guy come up to a custom and say hey nice low rider (insert any car genre here you wish).

    Hell how many times do conversations on this board go back and forth on what is or what isn't a custom, hot rod etc? We can't even agree 100 % of the time.

    Anyway I'll go back to lurking.... better to run people off than to try and educate them....

    ..
     
  12. The reason that Rat Rod threads get closed quickly is that we just don't do them here. We are a traditional hot rod and custom forum. He was actually gentle and polite with you. I have been known personally to suggest that someone may be using their sphincter for a hat band. That of course is for someone I like and I have cleaned up my act out of respect for the Boss.

    Now as for your rear engine plate question way back in time there have been competition cars (trad race cars are acceptable here) that have used the engine plate for the firewall. That does work. Me personally if I was stuffing the mill into the cowl I would just move the firewall back and build a hump.

    Now this is just info for the masses. Yes I am high jacking the thread. One thing that we used to do when I was coming up was get a wheel barrow and use it for a divot for the engine to sit in and weld it into the original firewall. Works like a champ.

    OK back to regular programming. Good day
     
    texasred likes this.
  13. Tim
    Joined: Mar 2, 2001
    Posts: 20,037

    Tim
    Member
    from KCMO

    I can remember maybe Don or @SamIyam doing a tech article on the wheel barrow trick long ago on a brown primer coupe
     
    porknbeaner likes this.
  14. Josh1940
    Joined: Jun 7, 2022
    Posts: 46

    Josh1940
    Member

    With a big block depending on HP you want to make, it will have torque. Keep that in mind with your twist points on firewall. It's your hotrod, like it or not whatever people call your build. Make it safe, driver friendly, and not a complete eye sore and be happy with it. Some of these guys on the board get a kick out of a word right out of the gate.
     

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