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1982 jimmy with a 302 ? crap ?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by GSXinneverland, Oct 11, 2001.

  1. GSXinneverland

    GSXinneverland Newbie

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    Hellloooo everybody,

    I'm new to K5's, I'm getting a deal on a 1982 jimmy k5 with a 302 engine.
    According to the specs, there was not a jimmy with a 302 from factory.

    Is the 302 as good/powerful as a 305 ?

    What's the difference between Blazer and Jimmy on the 82' model ?

    What should I look for before buying it ?

    Thanks in advance....

    GSX_in_neverland
     
  2. txbartman

    txbartman 1/2 ton status

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    I have never heard of a 302 in a Jimmy. As far as differences between the K5 and the Kimmy, there really aren't any except cosmetics. Structurally and mechanically they are the same vehicle.

    Brian
    Check out <a target="_blank" href=http://tx85gmcguy.alloffroad.com>My Jimmy</a> with all her projects!
     
  3. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Sounds like someone heard it had a 5.0 Liter V-8 and assumed it was a 302. It should have a 305 or a 350. Both are good, more power out of the 350 obviously.

    The difference between a Jimmy and a Blazer is that a Jimmy is cooler...[​IMG] Seriously, the only diference was some badging. Jimmy was GMC and Blazer was Chevrolet. Cosmetic only.

    Check carefully for rust of any sort. I strongly suggest you pull up the carpet and look at the actual floor. Many people have been surprised to find a lot of rust under the carpet on an otherwise clean looking truck. Open the tailgate and check the rearmost area under the carpet, tailpans rust frequently and are hard to replace. Check the front seatbelt anchor points for weakness, also another prime spot for rot.

    Mechanical is pretty straightforward, leaks, etc should be warning signs although mechanical is way easier to fix compared to rust.

    Rene



    <font color=green>Dyslexics of the world...UNTIE!</font color=green>
     
  4. RedDwarf

    RedDwarf 1/2 ton status

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    I will trade you a 305 for your lowly 302.
    No replacement for displacement eh?

    Still Poundin' "pavment" after all these years!!! [​IMG]
     
  5. GSXinneverland

    GSXinneverland Newbie

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    Man...
    This IS a really active forum... I like that :) lots of help all the time.

    I assume the original 305 was replaced for a 302 on this Jimmy, no idea why.
    The owner told me it had a 302 v8 with a 2 BBL carb (4 speed).

    How good is the 302 compared to the 305 ?

    Thanks.
    GSX_in_neverland
     
  6. txbartman

    txbartman 1/2 ton status

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    If its got a 2BBL carb, it will suck! (my opinion of course)

    If the 302 is anything like the 305, it will be fine. Mine has a 305 with 241,000 miles and still going. Wont' spin the 35 inch tires, but, then agina, won't break alot of parts either!

    Brian
    Check out <a target="_blank" href=http://tx85gmcguy.alloffroad.com>My Jimmy</a> with all her projects!
     
  7. RedDwarf

    RedDwarf 1/2 ton status

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    Trust me, the 302 Chev is NOTHING like the 305.

    What is the casting number on the block? It is located on a ledge behing the driver side cylinder head. You may have to clean some gunk off to read it.

    Also, a piece of silly putty can be used to make a mold of the casting so you can read it more easily.

    Still Poundin' "pavment" after all these years!!! [​IMG]
     
  8. Shawn

    Shawn 1/2 ton status Premium Member Author

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    From camaros.org:

    All first-generation Z-28s were coupes with a 302ci/290HP V8 engine. The engine power rating was conservative, and in racing trim made in excess of 400HP. The 302 engine was only available in first-generation Z-28s (the 350 LT-1 was used in 2nd generation Z-28s), and was created in response to a Trans Am racing engine displacement limitation at that time of 5 litres (305ci). The 302 was created by installing a short-stroke 283ci engine crankshaft in a 327ci block, resulting in 302ci. This just fit the Trans Am limitation (the bores of the actual racing engines were tweaked to produce exactly 305ci) and this design (with special modifications for high-performance use) resulted in an unusual, high-revving engine that helped create the legend of the Z-28. The 302 was the only engine available in the first-generation Z-28.


    Shawn
    87 K5
    few mods [​IMG]
    <a target="_blank" href=http://www.off-road.com/chevy>www.off-road.com/chevy</a>
     
  9. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    I highly doubt someone would drop in a 302 Zapper and then stick a 2 bbl on it. Even if they did...the zapper is a very peaky motor.

    Rene

    <font color=green>Dyslexics of the world...UNTIE!</font color=green>
     
  10. Pugsley

    Pugsley 1/2 ton status

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    Is it a swapped in 302 Ford? Most of them came with a 2bbl from the factory - Is the distributor in front or back?

    Of the 5 toughest dogs in the neighborhood, my cat's ranked #3
    <a target="_blank" href=http://pugsley.alloffroad.com>pugsley.alloffroad.com</a>
     
  11. K10ANDYKHAMNIC

    K10ANDYKHAMNIC 1/2 ton status

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    my stock crate 305 spins my 35 s with 4.56 gears :)

    WHATS WRONG WITH A 305 ?
    81 K10 GOODYEAR 35" MTRS
    TH350 NP 208
    O R D's axles
    NO BREAKAGE :)
     
  12. RedDwarf

    RedDwarf 1/2 ton status

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    That is just wrong Pugsley.
    You're a sick individual. [​IMG]

    Still Poundin' "pavment" after all these years!!! [​IMG]
     
  13. Pugsley

    Pugsley 1/2 ton status

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    I used to work with a guy that swapped a Mopar 440 into a K20 - that was sick and wrong[​IMG]

    Of the 5 toughest dogs in the neighborhood, my cat's ranked #3
    <a target="_blank" href=http://pugsley.alloffroad.com>pugsley.alloffroad.com</a>
     

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