454 Vortec

Discussion in 'Trucks and Trailers' started by nsmilligan, Dec 22, 1999.

  1. nsmilligan

    nsmilligan LawnSite Member
    Messages: 121

    Have a 98 K2500 with the 7.4 (454) any mods to improve gas mileage? Has anyone tried bigger exhaust or chips? Maybe a K&N filter. <br>Bill
  2. red450ih

    red450ih LawnSite Member
    from USA
    Messages: 12

    Try www.454ss.com they may be able to help you.
  3. frahmie

    frahmie LawnSite Member
    Messages: 46

    you can never go wrong with exhaust and/or a chip. my buddy has a vortec 350 and he put exhaust and it helped the mileage. Just out of curiosity, what kind of mileage does your vortec get stock? <p>frahmie

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