Power head identification???

[Travistjm1]

I know its a shot in the dark but could someone please tell me what model of saw this power head is?? Stihl Chainsaw Parts Saw #1 - eBay (item 150583927055 end time Apr-04-11 16:43:33 PDT) any info greatly appreciated! thanks

 

[brokenbudget]

thats a poulan 3400 or craftsman 3.4