Spark plug help.??????

[stang4u2nv]

so I got a set of aluminum ford motorsport heads but i don't know what kind of spark plugs it takes. I installed a set of autolite 103's and they seem to reach fine but i think the seat is a tappered seat or something any of you have any ideas..?

 

[stang4u2nv]

Part # for the head i have is m6049 j302 and i need some tapered plugs for it with enough reach etc.... thanks in advance.

 

[stang4u2nv]

ok?????? anyone????

 

[ryclef331]

what are you asking? Whether to use theh crush washers or not?

 

[Jrgunn5150]

He's asking specifically for those heads if he should use special plugs. I have no idea dude.

 

[94gt306]

My heads call for autolite racing plugs my heads are edelbrock performer rpms and the plug part number is AR3932 they have a 3/4 inch reach and work great maybe you could try those if your heads are similar to mine