Community Q&A Question: 2003 F-150 Lariat 5.4 Triton Upgrade?

Asking About: F-150 SVT Lightning Ford Performance 5.4L Forged Short Block


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2003 F-150 Lariat 5.4 Triton Upgrade?

I am considering a short block upgrade and adding a Whipple Supercharger to my 2003 Lariat. Besides the engine block, what other components would HAVE to be upgraded? My lariat has heavy duty towing options so came with most upgrades to cooling, brakes, and drive train, and I have already added drilled/vented disks, new calipers. Curious about fuel injection, (heads 7 valves), coils, etc.
from Portland |

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Meant & valves, ..not 7.
from Portland |


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  • F-150 SVT Lightning Ford Performance 5.4L Forged Short Block
    Ford Performance 5.4L Forged Short Block
    #M6009C54SC4L
    $4,399.99
    This item is no longer available.