454 Vortec

nsmilligan

PlowSite.com Veteran
Location
Nova Scotia
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
 

frahmie

Junior Member
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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