Which engine would you want in your 80s k5 blazer?

Discussion in 'The Engine Bay' started by 83blazertexas, Jan 14, 2020.

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  1. 83blazertexas

    83blazertexas Registered Member Premium Member

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  2. Justin V

    Justin V I should've stayed up there Premium Member GMOTM Winner

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    Any reputable shop will include warranties and would let you come see how they are built. They will provide parts lists and be confident enough in what they are using to provide manufacturers of parts.

    New pistons means far less than new mahle cast pistons.

    Or whatever. Realize that you do get what you pay for. There are ways to slap a runner together for cheap, and there are ways to spend a little extra to get some longevity too.

    Talk to them, go see them. Ask what parts they are using. Ask what parts get serviced and reused.
     
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  3. 83blazertexas

    83blazertexas Registered Member Premium Member

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    It seems like these are my 3 main choices if swapping a bad engine in 1983 k5 blazer. A bit torn.
    My intention is to have a very dependable cruiser I can enjoy for rest of life. I'm 46.

    Anyone have a good or bad experience going down one of the roads below? I'm willing to pay more if value is there. I'm just not an expert with engines.

    option 1
    craigslist rebuilt 350: https://dallas.craigslist.org/ftw/pts/d/crowley-sbc-chevy-engines-performance/7043260961.html

    option 2 blueprint crate engine https://blueprintengines.com/produc...ck-gm-dressed-longblock-carburetor-bp3501ctc1

    option 3 GM 350 HO Deluxe 330HP https://www.gmperformancemotor.com/parts/19210008.html
     
    Last edited: Jan 14, 2020
  4. Justin V

    Justin V I should've stayed up there Premium Member GMOTM Winner

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    Do you have to meet an emissions requirement?
     
  5. 83blazertexas

    83blazertexas Registered Member Premium Member

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    nope. in texas as a classic we have zero emtion requirements.
     
  6. Justin V

    Justin V I should've stayed up there Premium Member GMOTM Winner

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    Well I like the roller cam in the blueprint. Not a fan of bypereutectic pistons though.

    The gm is nice because everything is brand new but it has a flat tappet cam
     
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  7. 83blazertexas

    83blazertexas Registered Member Premium Member

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    If you were buying this truck which engine would you want to see under the hood?
     
  8. Bent77

    Bent77 lil meanie Staff Member Moderator GMOTM Winner

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    What’s your budget?

    cuz I’d like more engine. But it’s not my wallet
     
  9. 83blazertexas

    83blazertexas Registered Member Premium Member

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    4k is pushing it. Anything good with that?

    I see you got this one right? Damn nice~!
    SP385/350
    https://www.summitracing.com/parts/nal-19333158/
     
    Last edited: Jan 14, 2020
  10. Bent77

    Bent77 lil meanie Staff Member Moderator GMOTM Winner

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    First, let's back up a bit. There is likely several reputable engine houses in your area than can rebuild what you have, or start from scratch with a TBI era block that will accept a hydraulic roller cam.

    Find out the good shops, and do the leg work like @Justin V suggested. Tell them your budget and use and see what answers you get
     
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  11. Bent77

    Bent77 lil meanie Staff Member Moderator GMOTM Winner

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  12. Bent77

    Bent77 lil meanie Staff Member Moderator GMOTM Winner

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  13. Desert_K5

    Desert_K5 1/2 ton status Vendor

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    I will never go older than an L83 swap after @Fastereddie hooked up my 77. It's a little more up front outlay but the return has been awesome. Just a thought.
     
  14. nvrenuf

    nvrenuf I grind my welds. Premium Member

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    The biggest one.
     
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  15. ktmoutfront

    ktmoutfront Still waiting for my calendar. Premium Member GMOTM Winner

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    I would be concerned about the original post shop. Too much dirt on the floors with open blocks and heads sitting on chairs.
     
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  16. sweetk30

    sweetk30 5/8 ton status . . . just for BENT77 Premium Member

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    yep x2 on this . what a dirty pig hole of a shop and pics to show a build out of a engine .
     
  17. Justin V

    Justin V I should've stayed up there Premium Member GMOTM Winner

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    Tons of things to consider...

    If 4K is your budget, does that mean everything? Or just engine price?

    You'll possibly need hoses, plugs, water pump, t-stat, wires, cap and rotor(or whole dizzy), exhaust, intake, carb or injection, fuel pump, fuel hoses, filters, fluids, a second oil change, break in additives, radiator, gauge senders, etc

    Need to look at the whole picture before you decide on an engine.
     
  18. bigblock454

    bigblock454 Clack Clack Clack Premium Member

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  19. Justin V

    Justin V I should've stayed up there Premium Member GMOTM Winner

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  20. K85 Octane

    K85 Octane Tacklin' Fuel Premium Member GMOTM Winner

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    6.2, non-diesel :D
    Just to answer the title’s question
     
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