Mosquito control is what I say regarding engine smoke.

I don't think it will correct itself, my seats themselves are not sunk, the seat face was beat up a little from aggressive cam, I don't see it happening on every single set of AFR heads, or other brands. Sure anything is possible but if I changed every time a new possible issue arises I would never have engines together, I have friends with AFR, dart, edelbrock and others with no issues. Guess it all depends on many things, castings, tune, and anything else.

Like I said I am too far into it now as port work is done

Since your heads are with a reputable guy, one would think if he saw issues he would have brought it up to you beforehand.

Lets see we have the don't buy a cam thread, then we had the lifters machined wrong thread, then the Dart block came wrong from dart thread...... Now this is going to be a don't buy AFR heads thread. LOL maybe you guys should look into ELECTRIC power or let someone that knows what they are doing build engines.


Corn the butter

Has anyone mentioned this issue here before? I`ve never seen it, my head guy never mentioned it, so everyone is replacing their seat when they get new heads from AFR? That`s a no.
Everyones head turns to **** after a season then?


My Darts came with seats that are no good?
I got one season on em ,(out every weekend lots of WOT runs at the end of the year) I tested probably 8 holes between the 2 motors and compression numbers are almost identical between them so I didn`t bother with the rest .... can`t be that bad.



EDIT:

Dart 345 Iron Eagle :

Valve Seats: Exh = Tungsten hardened alloy, .006" press (TIR .004)


That good?

Well , one of the guys posting here about his issues, has one of the fastest vee bottoms in the country, and has been in this game for quite some time.

But hey, its all bs. Especially when its something nobody wants to hear.

As of now there are no concerning issues so I am going with it, have no choice.

Again nothing to add at all... From the problem free guy that did engines after 12 hours again because he burned them up, yet we are idiots....

I have 400 plus hrs on my afrs, have had the valve job touched up every 100 hrs when re-freshening (1000+hp blower motor), never been real beat up, never plull valve covers off between rebuilds, when I do tear apart never noticed a bunch of extra preload or see where motor was popping or misfiring, had seats changed last time at 400 hrs since they been cut on so many times just so they werent sunk, probably not as aggressive cam having similar lift but much more duration, fwiw, Smitty
My heads were new in 2004 if I remember right

you can't feed anything to this group artic, they have an agenda. don't waste your time telling them, they have a bunch of kool aid drinkers following them