I just had IPP build me a stage 4 VG30DETT longblock. I am prepping it to install now, but it looks great and I was very happy with the customer service. Brett and Kyle both know alot and can help you. What you may want to do is what I did, which was find a core for sale in Houston for much cheaper than the 350 dollars it costs to ship them your core and pay the owner to drop it off for you. I spent $135 total to buy and have a core delivered to IPP for me from another member in Houston, and that process worked great. I had paid the core charge ahead of time, which was refunded to me, and I got to keep my current engine as well, which only needs minor repair, so now I have it in addition to my new Stage 4 IPP longblock.
