Author Topic: 66 GT350 S2MS Cobra Intake Manifold Variations  (Read 830 times)

Karguy

  • Full Member
  • ***
  • Posts: 115
    • View Profile
Re: 66 GT350 Cobra Intake Manifold Variations
« Reply #15 on: January 10, 2019, 11:54:25 PM »
I purchased a really nice #8 from a good friend about a year before 6s281 made its way back into my life in Jan 17. I knew that if I ever did get my car back it would need a manifold because I remembered one of the rear mounting ears had been broken off of the original years ago. This manifold has some sentimental value because my buddy I purchased it from has since passed away. After reading this post I realize it is probably the wrong intake for 6S281, sounds like I should have a #1.  What say you guys? I would appreciate a knowledgeable opinion and some good advice.
Thanks, Karl
6s281
« Last Edit: January 11, 2019, 12:14:25 AM by Karguy »

J_Speegle

  • Hero Member
  • *****
  • Posts: 784
  • Just here to help :)
    • View Profile
    • ConcoursMustang.com
Re: 66 GT350 Cobra Intake Manifold Variations
« Reply #16 on: January 11, 2019, 12:26:24 AM »
...................After reading this post I realize it is probably the wrong intake for 6S281, sounds like I should have a #1.  What say you guys? .......

Think it's early in the survey and discussion of findings but I think you might want a S1MS small Cobra one for you application given others I've seen and recorded. By the original post, though not the title,  the plan apparently was not to look at all intakes installed during production but just the S2MS variations.



As a side comment - Did notice that the S2MS version with the Thermactor and coil bosses were missing from this survey verses the last discussion.
« Last Edit: January 11, 2019, 12:32:55 AM by J_Speegle »
Jeff Speegle- Mustang & Shelby detail collector, ConcoursMustang.com babysitter :) and Judge

s2ms

  • Full Member
  • ***
  • Posts: 118
    • View Profile
    • 6S1757 Info
Re: 66 GT350 S2MS Cobra Intake Manifold Variations
« Reply #17 on: January 11, 2019, 03:27:24 PM »
...................After reading this post I realize it is probably the wrong intake for 6S281, sounds like I should have a #1.  What say you guys? .......
Think it's early in the survey and discussion of findings but I think you might want a S1MS small Cobra one for you application given others I've seen and recorded. By the original post, though not the title,  the plan apparently was not to look at all intakes installed during production but just the S2MS variations.

As a side comment - Did notice that the S2MS version with the Thermactor and coil bosses were missing from this survey verses the last discussion.

Yes, I was just trying to focus on the standard 66 GT350 S2MS versions for this discussion, not anything rare like race versions, etc. Changed the title to reflect that. But...if you have an early car after #252 that has an original S1MS intake please post that info, may as well include those.

Jeff,

I did not include the version with thermactor and coil bosses because I was not aware they came on any 66 GT350.

Thanks for the replies so far. If you have an original intake please post the styles and car number and I'll add it to the spreadsheet, hopefully a clearer picture will emerge...

Thanks,
Dave
« Last Edit: January 11, 2019, 04:27:58 PM by s2ms »
Dave - 6S1757

6S280

  • Newbie
  • *
  • Posts: 5
    • View Profile
Re: 66 GT350 S2MS Cobra Intake Manifold Variations
« Reply #18 on: January 11, 2019, 10:48:00 PM »
Karl, 6S280 has a combo set 1 (1A-2A-3A) manifold.

Karguy

  • Full Member
  • ***
  • Posts: 115
    • View Profile
Re: 66 GT350 S2MS Cobra Intake Manifold Variations
« Reply #19 on: January 11, 2019, 11:37:31 PM »
Thanks Roger, good to hear from you. Possible to get pictures of your S1 intake? Ive always figured 280 is my best shot for correct specs for 281.
Thanks, Karl
6s281

J_Speegle

  • Hero Member
  • *****
  • Posts: 784
  • Just here to help :)
    • View Profile
    • ConcoursMustang.com
Re: 66 GT350 S2MS Cobra Intake Manifold Variations
« Reply #20 on: January 11, 2019, 11:41:13 PM »
Thanks Roger, good to hear from you. Possible to get pictures of your S1 intake? Ive always figured 280 is my best shot for correct specs for 281.

Just a thought

Hard to tell what car was built the closest to your car especially with this subject since this was a Ford VIN related (since the intakes were installed by Ford) item. But guess since you can't get access to the Ford VIN for other cars with ease you'll have to settle for the Shelby VIN
Jeff Speegle- Mustang & Shelby detail collector, ConcoursMustang.com babysitter :) and Judge

65fastbackk

  • Newbie
  • *
  • Posts: 14
    • View Profile
Re: 66 GT350 S2MS Cobra Intake Manifold Variations
« Reply #21 on: January 13, 2019, 02:07:24 AM »
I don't have a car but I have a combo 3 manifold.

CSX4781

  • Newbie
  • *
  • Posts: 12
    • View Profile
Re: 66 GT350 S2MS Cobra Intake Manifold Variations
« Reply #22 on: January 13, 2019, 03:40:15 PM »
Hey Dave,
    The original intake to SFM6S1342 is a #3 combination. Also, even though it is a little bit later car, the casting/assembly dates for the original engine block are fairly early (early-mid October 1965).

Dave