Page 1 of 3 123 LastLast
Results 1 to 10 of 21

Thread: 302 throttle body

  1. #1
    Join Date
    Oct 2004
    Location
    Gap Mills WV 24941
    Posts
    14,259
    Feedback Score
    15 (100%)

    Default 302 throttle body

    Why did for put a dual throttle body on the F series and bronco's while the passanger cars got one? The 351 got dual as well but much larger.

    I am pulling the white cougs motor again here soon and the setup will look like everyones typical cookie cutter layout, nothing fancy other than megasquirt which is in transit.

    later on this year, I want to transiton my hogged out lower intake to a single chamber followed by my TB and additional duct to the fender wells to the CAI.

    just curious about what ford was thinking.

  2. #2
    Join Date
    Jan 2005
    Location
    long island
    Posts
    1,353
    Feedback Score
    2 (100%)

    Default

    Are you sure the TB on 351 is bigger then the 302, I always wondered but i thought i heard somewhere they were the same.
    Maybe it has 2 duels for the rectangular intake opening, like the pass intake is more of a square so 1 circle would fit instead-I don’t know that’s my guess there’s probably a better answer.
    I know they sell aftermarket TB for the trucks and there duel as well.
    If the 351 is bigger I guess that would be a good upgrade from the boneyard.
    I like this site for my bronco maybe they could help www.fullsizebronco.com
    Billy

    My motor missing the gt40 tubular upper http://foxtbirdcougarforums.com/showthread.php?t=17223
    Picks of my car http://foxtbirdcougarforums.com/showthread.php?t=17369
    http://www.cardomain.com/ride/2395591
    Car Domain will be under constrution for a while(it took me a year to do this)

  3. #3
    Join Date
    Oct 2004
    Location
    Farmingdale, NY
    Posts
    9,052
    Feedback Score
    18 (100%)

    Default

    The truck manifolds flow more air than their passenger car counterparts. My guess is that this is part of the reason for the different TB's.
    Last edited by V8Demon; 01-31-2008 at 09:33 PM.
    -- 05 Mustang GT-Whipplecharged !! -- 87 5.0 Trick Flow Heads & Intake - Custom Cam - Many other goodies...3100Lbs...Low12's! http://www.fquick.com/V8Demon

  4. #4
    Join Date
    Jan 2005
    Location
    Ardmore,Oklahoma
    Posts
    19,479
    Feedback Score
    135 (100%)

    Default

    Aren't the truck upper manifolds and throttle body higher up than ours?
    '88 Sport--T-5,HURST shifter,TMoss GT-40 intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,70mm t-body,3G,mini starter,Taurus fan,BBK headers,O/R H-Pipe, Flowamaster 40's, deep and deeper Cobra R wheels,Mass Air, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

  5. #5
    Join Date
    Oct 2004
    Location
    Gap Mills WV 24941
    Posts
    14,259
    Feedback Score
    15 (100%)

    Default

    Quote Originally Posted by vinnietbird View Post
    Aren't the truck upper manifolds and throttle body higher up than ours?
    yes,
    they are much higher. Infact, i believe the 351 is even higher than the 302. I am not planning on using any of the truck intakes on the coug btw.

    I have a 351 bronco 4wd 5spd and the TB is larger than the 302 truck tb's ive came across.

  6. #6
    Join Date
    Jan 2005
    Location
    long island
    Posts
    1,353
    Feedback Score
    2 (100%)

    Default

    According to this the 351 and 302 use the same TB but the intakes are totally different the 302 being square ported and the 351 being oval.
    http://www.fullsizebronco.com/forum/...+Throttle+body
    Billy

    My motor missing the gt40 tubular upper http://foxtbirdcougarforums.com/showthread.php?t=17223
    Picks of my car http://foxtbirdcougarforums.com/showthread.php?t=17369
    http://www.cardomain.com/ride/2395591
    Car Domain will be under constrution for a while(it took me a year to do this)

  7. #7
    Join Date
    Oct 2004
    Location
    Farmingdale, NY
    Posts
    9,052
    Feedback Score
    18 (100%)

    Default

    You'd need a cowl hood to fit a full, uncut truck manifold on a 5.0 in a fox passenger car.

    When the EFI manifolds first came out it was not uncommon to see modified truck manifolds on Mustangs. The runners were shortened a bit in some cases, a lot in others.
    -- 05 Mustang GT-Whipplecharged !! -- 87 5.0 Trick Flow Heads & Intake - Custom Cam - Many other goodies...3100Lbs...Low12's! http://www.fquick.com/V8Demon

  8. #8
    Join Date
    Jan 2005
    Location
    long island
    Posts
    1,353
    Feedback Score
    2 (100%)

    Default

    I’ma still learning you guys are ages ahead of me w/this stuff.
    I did realize I wouldn’t be practical to run the TB like a truck, but I now some run the lowers is it the TFS or Holly upper that bolts to the truck302 lower or was it salene or professional products. And whose mounts to the 351 lower.
    Billy

    My motor missing the gt40 tubular upper http://foxtbirdcougarforums.com/showthread.php?t=17223
    Picks of my car http://foxtbirdcougarforums.com/showthread.php?t=17369
    http://www.cardomain.com/ride/2395591
    Car Domain will be under constrution for a while(it took me a year to do this)

  9. #9
    Join Date
    Jan 2005
    Location
    Ardmore,Oklahoma
    Posts
    19,479
    Feedback Score
    135 (100%)

    Default

    With all of the aftermarket throttlebodies on the market,wouldn't it be almost pointless to adapt a truck t-body?Heck,I have a 65mm sitting on my workbench collecting dust.I've seen 90mm throttlebodies for our cars.Way to much air for my engine.LOL.
    '88 Sport--T-5,HURST shifter,TMoss GT-40 intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,70mm t-body,3G,mini starter,Taurus fan,BBK headers,O/R H-Pipe, Flowamaster 40's, deep and deeper Cobra R wheels,Mass Air, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

  10. #10
    Join Date
    Feb 2006
    Location
    Westminster, MD
    Posts
    978
    Feedback Score
    4 (100%)

    Default

    Quote Originally Posted by jcassity View Post
    yes,
    they are much higher. Infact, i believe the 351 is even higher than the 302. I am not planning on using any of the truck intakes on the coug btw.
    I have a 351 bronco 4wd 5spd and the TB is larger than the 302 truck tb's ive came across.
    hes not thinking of running a truck tb on a car. nor wonderign how it could be done.

    if i understand him correctly, he wants to know why ford desided to run a dual butterfly throttle body instead of one big one.
    2008 Chevrolet Cobalt Sport
    1988 Thunderbird sport
    2004 Ford F150 Lariat
    2007 Suzuki DR-Z400S dual sport/Supermoto
    1988 Thunderbird LX - sold
    1988 Mercury Cougar XR-7 with GST kit - gone

Posting Permissions

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