Originally Posted by Cab_Burge
The only spark plugs I know of that don't came with gaskets are the tapered seat plugs shruggy
You don't want to use them in any Hemi motors I know of currently: confused:


Some plugs have the washer loose in the box so you have to screw it on yourself, that's what I meant.
Doesn't matter, I'll just use the washers, running without them didn't help anything.

1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual