looking for a gsr longblock. thanks

 

looking for one that hasnt been disassembled before and is mostly stock. its hard for me to trust something with mismatched block and head etc as i feel that someones trying to unload their problem on me. also usdm is a plus

 

anybody know where i can get one?

 

drecivic has one never been disassembled

 

looking to buy from someone with references