Spark plugs dont fit in new engine!!

[8950HO]

I have a pair of E6SE heads at home. I'm curious on the threading for the spark plug now. They don't flow as much as E7TE. I believe they were only on 86 mustangs.

The E6 heads were used on 86 Mustangs,but E6 heads were also used on 302 base engines like in Crown Vics,Town Cars,T-Bird,Cougar,maybe others after 86,so theres probably lots of them out there.

Maybe they made a mistake and put E6 heads on your longblock.
**** happens.

 

[blkcobra50]

The E6 heads were used on 86 Mustangs,but E6 heads were also used on 302 base engines like in Crown Vics,Town Cars,T-Bird,Cougar,maybe others after 86,so theres probably lots of them out there.

Maybe they made a mistake and put E6 heads on your longblock.
**** happens.

I didn't think that they would use type of head for only one car. I thought that would have been strange. I think also mark VII's

at any rate I would call the engine builder up and get what you paid for.