Head question


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By tnt56 - 17 Years Ago
                    Ok I am new to this site and maybe this question has been asked before, I am not very experienced with the y-block, my question is the y-block heads do not have hardened seats to run unleaded gasoline do they? and if they do not what would you guys recommend for a lead substitute? thank you for the info!
By 55Birdman - 17 Years Ago
Put in the right valves, you will have to do it sooner or later anyway. Welcome  55Birdman Smile
By PF Arcand - 17 Years Ago
Todd: first, are the heads on or off the engine?.. If you are having them redone, best put in hardened exhaust seats. If you are driving it "moderately" & it runs fine, just leave it alone until other major work is needed..
By Ted - 17 Years Ago

Here’s a past post on both the hardened seats and the lead additive.

Adding lead to gas