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New Heads for a 4.3?

2323 Views 21 Replies 4 Participants Last post by  Blacksheep1
Hey I was wondering if anyone knew much about swapping or upgrading the heads on a 4.3 v6 silverado. Whats the price and gains of doing it and I would like to know if it is worth it.
Thanks :)
21 - 22 of 22 Posts
believe it or not every mod i listed there will also improve your mpg! although with all i have i still sit at a max of 16 mpg on the highway and that was my all time high :/
I got 17.1 in town but I have a 5spd and stock tires
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