FYI FORD - MustangSteve's Ford Mustang Forum
The Internet's Most Knowledgeable Classic Mustang Information
IF YOU HAVE A QUESTION ABOUT CLASSIC FORD MUSTANGS, YOU HAVE COME TO THE RIGHT PLACE!
MustangSteve has over 30 years of Mustang experience, having owned 30 of them and restored several others. With the help of other Mustangers, this site is dedicated to helping anyone wanting to restore or modify their Mustang.... THERE ARE NO DUMB QUESTIONS!!!!!
Visit MustangSteve's web site to view some of my work and find details for:
FYIFORD Contributors' PICTURES - Power Brake Retrofit Kits for 65-66 Stangs - Classic Mustang FAQ's by MustangSteve - How to wire in a Duraspark Ignition - Mustang Ride Height Pictures and Descriptions - Steel Bushings to fit Granada Spindles to Mustang Tie Rods - Visit my EBAY store MustangSteve Performance - How to Install Granada Disc Brakes MustangSteve's Disc Brake Swap Page - FYIFORD Acronyms for guide to all the acronyms used on this page - FYIFORD Important information and upcoming events

You are not logged in. Would you like to login or register?

  • Index
  •  » FYI Ford, Classic Mustang Tech Discussion
  •  » Factory exhaust manifolds

    • 1 of 1

       

    9/15/2020 8:47 PM  #1

    Nos681
    Senior 24-7 FYI Addict

    Offline

    From: Atlantic Mine, Michigan
    Registered: 7/14/2016
    Posts: 3,046

    Factory exhaust manifolds

    What factory exhaust manifolds can be used on a 65 w/289-302?
    What about 351w?

    Stock 65-66
    Hipo

    Any others?

    Last edited by Nos681 (9/15/2020 8:48 PM)

     

    9/15/2020 9:29 PM  #2

    6sally6
    Hyper FYIFORD ADDICT

    Offline

    From: Surfside Beach,SC
    Registered: 4/02/2013
    Posts: 6,458

    Re: Factory exhaust manifolds

    I think these were on "some" FoMoCo models back-in-the-day!  Flowed pretty durn good fer factory IF I recall co-wreckly! (pun intended!)

    Last edited by 6sally6 (9/15/2020 9:31 PM)

    Get busy Liv'in or get busy Die'n....Host of the 2020 Bash at the Beach/The only Bash that got cancelled  )8
     

    9/15/2020 9:34 PM  #3

    6sally6
    Hyper FYIFORD ADDICT

    Offline

    From: Surfside Beach,SC
    Registered: 4/02/2013
    Posts: 6,458

    Re: Factory exhaust manifolds

    These were for a "space-limited" application. Pretty sure FoMoCo stuff!
    You sir are................Very Welcome!!
    6sal6

    Last edited by 6sally6 (9/15/2020 9:35 PM)

    Get busy Liv'in or get busy Die'n....Host of the 2020 Bash at the Beach/The only Bash that got cancelled  )8
     

    9/16/2020 12:38 PM  #4

    lowercasesteve
    Senior 24-7 FYI Addict

    Offline

    From: Auburn, Ca
    Registered: 4/01/2013
    Posts: 1,216

    Re: Factory exhaust manifolds

    Nos681 wrote:

    What factory exhaust manifolds can be used on a 65 w/289-302?
    What about 351w?

    Stock 65-66
    Hipo

    Any others?

    I believe the Shelbys came with a 4-into-2-into-1 tubular exhaust manifold.  Anyway, they were around early on.

    As to a 351w, only a tubular manifold will work.  Stock 351w's had huge manifolds.  no way would they fit in a 65-66

    Original owner - 351w,T-5, 4whl disks, power R&P
     

    9/16/2020 4:03 PM  #5

    MS
    Forum Originator

    Offline

    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 11,717

    Re: Factory exhaust manifolds

    351w for Mustang chassis, 289 and 302, for Mustang chassis.  I have put 351w with stock Mustang 1969-70 manifolds in a 65.

    289 hipo manifolds fit in 65 but with use of 66 motor mounts.

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    9/16/2020 10:09 PM  #6

    Nos681
    Senior 24-7 FYI Addict

    Offline

    From: Atlantic Mine, Michigan
    Registered: 7/14/2016
    Posts: 3,046

    Re: Factory exhaust manifolds

    MS wrote:

    351w for Mustang chassis, 289 and 302, for Mustang chassis.  I have put 351w with stock Mustang 1969-70 manifolds in a 65.

    289 hipo manifolds fit in 65 but with use of 66 motor mounts.

    This type of information is not mentioned very often if ever.

    Answers usually go straight to headers.


    Any idea about late model manifolds that come on trucks and earlier crown vics?

       •Thread Starter
     

    9/16/2020 10:12 PM  #7

    Nos681
    Senior 24-7 FYI Addict

    Offline

    From: Atlantic Mine, Michigan
    Registered: 7/14/2016
    Posts: 3,046

    Re: Factory exhaust manifolds

    6sally6 wrote:

    These were for a "space-limited" application. Pretty sure FoMoCo stuff!
    You sir are................Very Welcome!!
    6sal6

    Sal, I would need to have the engine first.😁

       •Thread Starter
     

    9/17/2020 3:34 PM  #8

    lowercasesteve
    Senior 24-7 FYI Addict

    Offline

    From: Auburn, Ca
    Registered: 4/01/2013
    Posts: 1,216

    Re: Factory exhaust manifolds

    MS wrote:

    351w for Mustang chassis, 289 and 302, for Mustang chassis. I have put 351w with stock Mustang 1969-70 manifolds in a 65.

    289 hipo manifolds fit in 65 but with use of 66 motor mounts.

    That's amazing!  I must have seen the wrong years' manifold.  They weighed 20-30 lb each and would not fit in my car at all.  I measured, too.  Or did you put 65-66 manifolds in?  I'm unclear.

    Original owner - 351w,T-5, 4whl disks, power R&P
     

    9/17/2020 5:27 PM  #9

    Nos681
    Senior 24-7 FYI Addict

    Offline

    From: Atlantic Mine, Michigan
    Registered: 7/14/2016
    Posts: 3,046

    Re: Factory exhaust manifolds

    lowercasesteve wrote:

    MS wrote:

    351w for Mustang chassis, 289 and 302, for Mustang chassis. I have put 351w with stock Mustang 1969-70 manifolds in a 65.

    289 hipo manifolds fit in 65 but with use of 66 motor mounts.

    That's amazing!  I must have seen the wrong years' manifold.  They weighed 20-30 lb each and would not fit in my car at all.  I measured, too.  Or did you put 65-66 manifolds in?  I'm unclear.

     
    I can understand same manifold to respective engine in mustang chassis.

    Will the Hipo’s fit 351 in mustang chassis?

       •Thread Starter
     

    9/17/2020 6:54 PM  #10

    MS
    Forum Originator

    Offline

    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 11,717

    Re: Factory exhaust manifolds

    Non-Mustang manifolds typically angle outward at the collector where the Mustang manifolds angle downward.  So the Galaxy and truck have issues, although I have not tried every manifold.
    351w came out in 1969.. the 69-70 manifolds do fit either the small block 289 or 302 or the 351w In a Mustang chassis.

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    9/17/2020 9:01 PM  #11

    Nos681
    Senior 24-7 FYI Addict

    Offline

    From: Atlantic Mine, Michigan
    Registered: 7/14/2016
    Posts: 3,046

    Re: Factory exhaust manifolds

    Will Hipo’s fit 351w in 65 mustang?

       •Thread Starter
     

    9/18/2020 2:08 PM  #12

    6sally6
    Hyper FYIFORD ADDICT

    Offline

    From: Surfside Beach,SC
    Registered: 4/02/2013
    Posts: 6,458

    Re: Factory exhaust manifolds

    Nos681 wrote:

    Will Hipo’s fit 351w in 65 mustang?

     
    I would assume  IF they fit a 289HP in a Mustang ......you would be golden with a 260-289-302-5.0-351W  mill.  (note the use of "really hip" term when describing an engine!!)
    6s6

    Last edited by 6sally6 (9/18/2020 7:38 PM)

    Get busy Liv'in or get busy Die'n....Host of the 2020 Bash at the Beach/The only Bash that got cancelled  )8
     

    9/18/2020 3:03 PM  #13

    MS
    Forum Originator

    Offline

    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 11,717

    Re: Factory exhaust manifolds

    6sally6 wrote:

    Nos681 wrote:

    Will Hipo’s fit 351w in 65 mustang?

     
    I would assume  IF they fit a 289HP in a Mustang ......you would be golden with a 260-289-302-5.0-351W-351C  mill.  (note the use of "really hip" term when describing an engine!!)
    6s6

    Bad assumption on the 351c. Those for sure are not going to fit ANY Cleveland in ANY vehicle. 
    I am not 100% sure about the 351w using hipo manifolds In a 65-66, as I have not done it myself.  They would be more restrictive than stock 69-70 351w manifolds, anyway.

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    9/18/2020 9:41 PM  #14

    lowercasesteve
    Senior 24-7 FYI Addict

    Offline

    From: Auburn, Ca
    Registered: 4/01/2013
    Posts: 1,216

    Re: Factory exhaust manifolds

    lowercasesteve wrote:

    MS wrote:

    351w for Mustang chassis, 289 and 302, for Mustang chassis. I have put 351w with stock Mustang 1969-70 manifolds in a 65.

    289 hipo manifolds fit in 65 but with use of 66 motor mounts.

    That's amazing!  I must have seen the wrong years' manifold.  They weighed 20-30 lb each and would not fit in my car at all.  I measured, too.  Or did you put 65-66 manifolds in?  I'm unclear.

    What I remember is something like this.  Would not fit in mine.

    https://www.ebay.com/p/1111225509
     

    Original owner - 351w,T-5, 4whl disks, power R&P
     

    9/19/2020 7:30 AM  #15

    BobE
    Senior 24-7 FYI Addict

    Offline

    From: White Plains, NY
    Registered: 4/04/2013
    Posts: 2,183

    Re: Factory exhaust manifolds

    Years ago, on a friend's 65 Mustang w/351W, we re-installed the 289 stock exhaust manifolds until he could afford headers.   Had to grind off the small "nabs" on the manifolds to clear the stock towers.  As the 351W sits higher, we also did some manipulation to fit the exhaust piping from the manifolds.

    65 Fastback, 351W, 5-speed, 4 wheel discs, 9" rear,  R&C Front End.
     

     

    1 of 1

  • Index
  •  » FYI Ford, Classic Mustang Tech Discussion
  •  »  Factory exhaust manifolds

    • Board footera


    REMEMBER!!! When posting a question about your Mustang or other Ford on this forum, BE SURE to tell us what it is, what year, engine, etc so we have enough information to go on.