LT1 vs. Vortec vs. LSx

[81chevys]

Kevinr1970 how much does your 06 weigh
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[kevinr1970]

Originally Posted by 81chevys

Well i cant tell you about your oil problem but ive seen it done on a tbi truck with a performer for vortec heads. It worked and made decent power. They used the used a spacer. No need for the gmpp

Also therebare ls setups that do get 23+mpg. They generally are not lifted but they do exist. My truck weighs 3990 with the sbc iron heads and iron intake. The ls is a hare lighter with the plastic intake and aluminum heads. I expect at least 20mpg
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This sounds promising then for my crew!

Originally Posted by 81chevys

Kevinr1970 how much does your 06 weigh
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No idea, it was a 2006 GMC short bed regular cab 2-wheel drive.
It was a "work truck" but was a custom order with a v8, PW/PL, upgrade seat, upgrade stereo, tinited glass, rear window slider, locker, 3.23's, etc; when it was delivered the guy came to pick it up and left with a crewcab instead so the were looking to unload this one.
I should mention that I lowered this truck 2"/4" but I don't think that should have changed the mpg drasticly?