So, I purchased the wrong injectors and now I have to pay a 20% restocking fee. I have a Edelbrock intake and fuel rails. The instructions say that I need an injector that is 1.5" o-ring to o-ring. So I think these injectors will work?

http://www.deatschwerks.com/products...-0065-8-detail


Also I have a 5.3, so I'm assuming I'll need to cut off the connectors and solder on these?
http://www.ebay.com/itm/ev6-ev14-USCAR-Fuel-Injector-Pigtail-Connectors-Ford-Chevy-Dodge-FAST-ls2-ls3-GM-/171558024943?pt=Motors_Car_Truck_Parts_Accessories&hash=item27f1a7b6ef&vxp=mtr

 

A long as the o-rings are correct size, just re-mount the fuel rails to suit your injectors.

Job done.