Welcome to Club Hot Rod!  The premier site for everything to do with Hot Rod, Customs, Low Riders, Rat Rods, and more. 

  •  » Members from all over the US and the world!
  •  » Help from all over the world for your questions
  •  » Build logs for you and all members
  •  » Blogs
  •  » Image Gallery
  •  » Many thousands of members and hundreds of thousands of posts! 

YES! I want to register an account for free right now!  p.s.: For registered members this ad will NOT show

 

Thread: 454 truck heads?
          
   
   

Reply To Thread
Results 1 to 6 of 6

Hybrid View

  1. 04-09-2004 12:04 PM #1
    ericingram
    ericingram is offline CHR Member
    Visit my Photo Gallery
    Join Date
    Nov 2003
    Location
    San Diego, CA
    Car Year, Make, Model: 1969 Chevy Nova
    Posts
    23

    454 truck heads?

     



    I need to find out (asap, that's why i'm posting now instead of trying to look up my casting #'s) what kind of ports (oval or rectangle) are on my 1979 gmc 454, out of a 3/4 ton suburban. Was there a standard for this kind of truck?

    Thanks
    Reply With Quote Reply With Quote
  2. 04-09-2004 12:14 PM #2
    viking's Avatar
    viking
    viking is offline CHR Member
    Visit my Photo Gallery
    Join Date
    Jun 2003
    Location
    Branson area
    Car Year, Make, Model: 23 T, 53 FLH , 66 C-10 454, 03 CVPI
    Posts
    968

    oval
    Objects in the mirror are losing
    Reply With Quote Reply With Quote
  3. 04-09-2004 12:58 PM #3
    ericingram
    ericingram is offline CHR Member
    Visit my Photo Gallery
    Join Date
    Nov 2003
    Location
    San Diego, CA
    Car Year, Make, Model: 1969 Chevy Nova
    Posts
    23

    Cool, just curious but what's the basis for that? 2 bolt or 4 bolt?
    Reply With Quote Reply With Quote
  4. 04-09-2004 01:21 PM #4
    viking's Avatar
    viking
    viking is offline CHR Member
    Visit my Photo Gallery
    Join Date
    Jun 2003
    Location
    Branson area
    Car Year, Make, Model: 23 T, 53 FLH , 66 C-10 454, 03 CVPI
    Posts
    968

    Well as far as I know (insert 2 cents) there were no IRON rect's between 71 and 91 save the service replacement ones, as for the 2 or 4 bolt, could go either way, get some #'s and post .
    Last edited by viking; 04-09-2004 at 01:25 PM.
    Objects in the mirror are losing
    Reply With Quote Reply With Quote
  5. 04-09-2004 01:24 PM #5
    stepside454's Avatar
    stepside454
    stepside454 is offline CHR Member
    Visit my Photo Gallery
    Join Date
    Dec 2003
    Location
    Festus
    Car Year, Make, Model: 75 GMC C-15
    Posts
    342

    79 was most likely the "peanut"port head, small oval port. Great for low end torque, but dont flow very well for any kind of performance use over 5000 RPMs.
    75 GMC C-15 factory 454, automatic, lowered
    Reply With Quote Reply With Quote
  6. 04-09-2004 03:07 PM #6
    ericingram
    ericingram is offline CHR Member
    Visit my Photo Gallery
    Join Date
    Nov 2003
    Location
    San Diego, CA
    Car Year, Make, Model: 1969 Chevy Nova
    Posts
    23

    can anyone suggest a new set of performance heads? I am slowly turning this thing into a drag car and am going with a 1050 dominator, is oval or rectangle ports more effective for upper range power?
    Reply With Quote Reply With Quote
Reply To Thread

Posting Permissions

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

Forum Rules

Links monetized by VigLink