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  •  » FYI Ford, Classic Mustang Tech Discussion
  •  » GM L83 LT Heads on a 5.0L 302 Ford Small-Block?

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    6/22/2025 8:33 AM  #1

    BobE
    Senior 24-7 FYI Addict

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    From: White Plains, NY
    Registered: 4/04/2013
    Posts: 2,798

    GM L83 LT Heads on a 5.0L 302 Ford Small-Block?

    Anyone looking for the project?

    https://www.hotrod.com/how-to/gm-l83-lt-heads-5-0l-302-ford-small-block-engine?utm_campaign=HOT_ROD-Newsletter&utm_medium=email&utm_source=SES&utm_type=organic&utm_content=20250620_HOT_ROD-Newsletter&utm_term=gm-l83-lt-heads-5-0l-302-ford-small-block-engine&email_subject=Pro%20Tips%20for%20Laying%20Down%20Waterborne%20Paint&email_list_name=hotrod&n_emid=79453bf2aa86d5872ae93626ed12a1b5&element_parent=Trending%20Articles&element_name=WTF?!%20GM%20L83%20LT%20Heads%20on%20a%205.0L%20302%20Ford%20Small-Block?%20Really??
     

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

    6/22/2025 12:54 PM  #2

    Ron68
    Senior 24-7 FYI Addict

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    From: Mukilteo, Washington
    Registered: 4/01/2013
    Posts: 1,653

    Re: GM L83 LT Heads on a 5.0L 302 Ford Small-Block?

    Blasphemy! The SBF would reject those Chevy heads! And besides, what intake manifold would you be able to use? Seems like an incredible amount of work and for what? 

    68 coupe - 351W, 4R70W, 9" 3.25 -- 65 convertible - 289 4v, C4, 8" 3.00
     

    6/22/2025 3:53 PM  #3

    Rudi
    Senior 24-7 FYI Addict

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    From: Stuck in the 50's Welland Ca
    Registered: 4/01/2013
    Posts: 4,018

    Re: GM L83 LT Heads on a 5.0L 302 Ford Small-Block?

    Some people have too much free time !👎

    Good work ain't cheap, Cheap work ain't good!   Simple Man
     

    6/22/2025 5:26 PM  #4

    TKOPerformance
    Hyper FYIFORD ADDICT

    Offline

    From: Newark, DE
    Registered: 12/15/2014
    Posts: 7,679

    Re: GM L83 LT Heads on a 5.0L 302 Ford Small-Block?

    It just one of those projects being done to show what a shop can do.  The amount of work required isn't even close to the modest gains you might see over a set of AFRs.  Frankly for that kind of money just bolt a blower to it and then the head flow really doesn't matter anymore.  

     

    6/22/2025 8:03 PM  #5

    MS
    Forum Originator

    Offline

    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 12,499

    Re: GM L83 LT Heads on a 5.0L 302 Ford Small-Block?

    Yeah, most guys just settle for one of those ugly-assed, oversized, has no business on the car, cheap, chinese GM distributors when they want to jack up their small block Ford.
    Whenever I see one of those on a Mustang, I just turn and walk away, because I know there is no hope having any meaningful discussion with the owner.

    YOU KNOW WHO YOU ARE

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

    6/23/2025 8:18 AM  #6

    BobE
    Senior 24-7 FYI Addict

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    From: White Plains, NY
    Registered: 4/04/2013
    Posts: 2,798

    Re: GM L83 LT Heads on a 5.0L 302 Ford Small-Block?

    I agree with the all these posts.  

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

    6/23/2025 9:13 AM  #7

    rpm
    Senior 24-7 FYI Addict

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    From: Bakersfield, Ca
    Registered: 9/17/2013
    Posts: 3,765

    Re: GM L83 LT Heads on a 5.0L 302 Ford Small-Block?

    BobE wrote:

    I agree with the all these posts.  

     
    Ditto that!

    Bob. 69 Mach 1, 393W, SMOD Toploader, Armstrong  steering, factory AC.
     

     

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