short block advantages

Discussion in 'Manton Push Rods Top Alcohol Tech Questions' started by bobt, Jan 11, 2018.

  1. bobt

    bobt New Member

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    what are the pros and cons for the standard and the -.500 blocks. thinking of a 4.46 bore x 4.15 stroke motor.
     
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  2. youngtuner

    youngtuner Member

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    What are you looking to put it in? Funny car pro mod?
     
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  3. Soldierboy0098

    Soldierboy0098 Active Member

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    Hey Bob, they are approx 30 lbs lighter but otherwise I am unaware of any advantage.

    Best wishes,
    Trev
     
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  4. bobt

    bobt New Member

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    nothing as exciting as fc or pro mod. trying to decide on a combo for some fast bracket racing looking for around 1500 hp. reliability and parts availability more important than top hp.
     
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  5. nitrowannabe

    nitrowannabe Member

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    I love a hemi but for what you want I think some version of a BBC is the best choice.
     
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  6. bobt

    bobt New Member

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    well from a rational standpoint it's hard to argue that. but I have had a love- hate relationship with the hemis since my first hemi car in high school in 1976 , and I'm just not sure I could pull the hood off my 70 cuda and see a bbc nestled between the frame rails. but to your point it would be nice when you need a part to just walk over to the next trailer and he probably has it on the shelf.
     
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  7. youngtuner

    youngtuner Member

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    if you are only looking to make that type of hp then you can do it with a fuel headed hemi, parts are cheaper. This is the design head that was originally in that car. Hemis are there own type of motor there are the little things that make the difference in one.
     
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  8. nitrowannabe

    nitrowannabe Member

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    If you had given that much info before I would never have said BBC !!
     
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  9. bobt

    bobt New Member

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    thanks for the input guys, now that you know what I have in mind what are your thoughts on a block there are a few bae and tfx 96 pieces floating around for sale . I know they take some different parts but do you think one is a better place to start.
     
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  10. greenracing

    greenracing New Member

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    If you're starting with nothing, I'd definitely suggest getting an entire package. That way you'll have all the little pieces that you don't think about, rather than piecing it together and having to figure out what's missing. (plus all the little pieces can really nickle and dime you)

    I don't think there's any real advantage of one over the other in regards to TFX and BAE/KB bottom end, especially for what you're building. Each has its own front drive and pan patterns, so once you pick a direction you're locked in on the block and bolt on components. I used to think that BAE/KB components were easier to come by, but I'm not sure that's really the case.

    If you're looking, I have a complete hat to pan 526 KB / BAE fuel head combo set up for alcohol that I got for a stalled project that I'm considering getting rid of.
     
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  11. Will Hanna

    Will Hanna We put the 'inside' in Top Alcohol
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    There are some theories relating to piston speed and dwell time, but Manzo said he didn't see any performance difference in a Pro Mod. They became pretty common in Pro Mod due to the weight savings, and they have became a little more common in TAFC. Another plus for a FC is you pick up close to .4" of visibility. The shorter rod may be a little harder on rings if you are comparing long term viability. For the hp rating you are looking for, most components will live for a long time (if you buy blown alky rated stuff).
     
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  12. bobt

    bobt New Member

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    good info. guys. greenracing can you email me some pics. and specs. of your engine. bore- stroke, block height, valve size, comp ratio, rocker arms, block repairs, . gailbobt@Hotmail.com
     
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