i have a set of brand new 4thread plug heads they are fully assembled all brand new still in box. Bought these for my built shortblock but after tearing it down a bit i have the 9thread heads on car and will be using them. I purchased these from modmaxracing.com for 2500. I would like to get 2000 picked up local only for now. location is central NJ. pics will be up later on today.