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LSX Carburetor Swap

The simplicity, economy and power of a carbureted combination is tough to beat. Converting your LS with parts and know-how from Scram Speed, it's easy too! These are the parts we use in-house when we're building LS motors with carburetors, including recommendations for which carb is best for your build! 

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  • Scram Speed LSX PCV Valve Cover FItting for .75 ID Grommet

    Scram Speed

    Scram Speed LSX PCV Valve Cover FItting for .75 ID Grommet

    If you've got a serious LS, this little piece will make your life much easier! This item is also available in -6AN and -8AN sizes! These special fittings allow easy installation of a catch tank on GM LS racing engines that have a PCV (positive...

    $11.75
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  • LS Thermal Fan Switch 200*

    Scram Speed

    LS Thermal Fan Switch 200*

    (2)

    Finally! A thermal switch for LS that's the correct metric thread, at a reasonable price. These screw directly into the cylinder head at the factory temp sender location. NO ADAPTERS NEEDED! Most vehicles have one of these ports available. No more...

    (2)

    $24.99
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  • LS Thermal Fan Switch 190*

    Scram Speed

    LS Thermal Fan Switch 190*

    (1)

    Finally! A thermal switch for LS that's the correct metric thread, at a reasonable price. These screw directly into the cylinder head at the factory temp sender location. NO ADAPTERS NEEDED! Most vehicles have one of these ports available. No more...

    (1)

    $24.99
    Add to Cart The item has been added
  • LS Thermal Fan Switch 180*

    Scram Speed

    LS Thermal Fan Switch 180*

    (1)

    Finally! A thermal switch for LS that's the correct metric thread to screw into the cylinder head, at a reasonable price. NO ADAPTERS NEEDED! No more sticking a temp bulb through the radiator. Typically, these units are used to activate a fan on an LS...

    (1)

    $24.99
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  • LS Swap Alternator Kit with exciter wire

    Scram Speed

    LS Swap Alternator Kit with exciter wire

    (5)

    Simplify your swap!  Our alternator is smaller and lighter than the factory LS alternators, but will fit in all the LS alternator brackets. Chances are it's much better looking than the alternator that came with your engine (if you got one). It has...

    (5)

    $149.99
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    LS Swap Alternator Exciter Pigtail

    Holley

    LS Swap Alternator Exciter Pigtail

    (1)

    This little pigtail is a lifesaver.   GM alternators require an exciter wire with a 12V switched source, otherwise they won't charge. We hear from a lot of swappers who have this problem, particularly when swapping to a carbureted system. This...

    (1)

    MSRP: $26.39
    $21.38
    $23.75
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  • LS Valley Cover Plate/Knock Sensor Delete - Black Powdercoat

    Scram Speed

    LS Valley Cover Plate/Knock Sensor Delete - Black Powdercoat

    (1)

    This black powdercoated version of our our low-profile LS Valley Cover Plate is CNC machined from billet 6061-T6 aluminum. Powdercoated NOT painted. Our low profile design clears all stock and aftermarket intakes and allows removal of the...

    (1)

    $59.95
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