/ Register

  • Welcome to SVTPerformance!
ATTENTION!
You may experience intermittent issues while accessing the site over the next 60-90 minutes, as we perform maintenance and upgrades.

5.0L 4v Head Exhaust Port

Discussion in '5.0L Coyote V8 Engine Modification/Discussion' started by PaleRider, Nov 19, 2014.

  1. Nov 19, 2014 #1
    PaleRider

    PaleRider Death Spank Established Member

    Messages:
    77
    Joined:
    Feb 25, 2008
    Location:
    Loogootee, Illinois
    Anyone know what the diameter of the exhaust port on the head is?
    Thanks
     
  2. Nov 19, 2014 #2
    Livernois Motorsports

    Livernois Motorsports Authorized Vendor Authorized Vendor

    Messages:
    1,057
    Joined:
    May 28, 2013
    Location:
    Dearborn Heights, MI
    The opening our CNC'd ones are 1.5" x 1.535"
    Looks like O.E. is 1.425"-1.430"
     
  3. Nov 19, 2014 #3
    PaleRider

    PaleRider Death Spank Established Member

    Messages:
    77
    Joined:
    Feb 25, 2008
    Location:
    Loogootee, Illinois
    Wow I heard that the 1-7/8" headers were very good for the GT 5.0l now it makes me wonder.
     
  4. Nov 19, 2014 #4
    PaleRider

    PaleRider Death Spank Established Member

    Messages:
    77
    Joined:
    Feb 25, 2008
    Location:
    Loogootee, Illinois
    I thought the port was a circle?
     
  5. Nov 19, 2014 #5
    Livernois Motorsports

    Livernois Motorsports Authorized Vendor Authorized Vendor

    Messages:
    1,057
    Joined:
    May 28, 2013
    Location:
    Dearborn Heights, MI
    looks like a circle, does not measure so.
    1-3/4" on a n/a low revving build.
    1-7/8" on a power adder car or one with head and cams
     
  6. Nov 19, 2014 #6
    PaleRider

    PaleRider Death Spank Established Member

    Messages:
    77
    Joined:
    Feb 25, 2008
    Location:
    Loogootee, Illinois
    Gotcha. Thanks
     
  7. Dec 5, 2014 #7
    PaleRider

    PaleRider Death Spank Established Member

    Messages:
    77
    Joined:
    Feb 25, 2008
    Location:
    Loogootee, Illinois
    Exhaust Flow

    Oh would you happen to know what the exhaust flow is at peak valve lift?
     
  8. Dec 6, 2014 #8
    SID297

    SID297 OWNER/ADMIN Staff Member Administrator

    Messages:
    51,593
    Joined:
    Mar 27, 2003
    Location:
    Myrtle Beach, SC
    On a stock cam?
     
  9. Dec 6, 2014 #9
    PaleRider

    PaleRider Death Spank Established Member

    Messages:
    77
    Joined:
    Feb 25, 2008
    Location:
    Loogootee, Illinois
    Yes of course
     

Share This Page