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Hell no. Germ, with the turbo 3400 in his monte is running bone stock internals at 320 hp. The tranny went long before the motor. I will be running 9 psi on a slightly ported motor with stock valves, im more worried about the transmission. Blackjack would be the person to talk to though. You will need custom turbo headers, currently there isnt a person that makes them. Those will be the major setbacks for the project. A custom tune will also be required, meaning you will need to buy DHP powertunr. I would say past 9 psi you will want to consider some motor work. past 12 psi it will be required. But before you turbo you will need ported intakes and heads. Your next best mod would be LS1 valve springs on the heads. For exhaust you will want at minimum of 2.5" turbo back. past 5 psi you will want 3" exhaust. Stronger head gaskets would be nice but not required until you blow one. Unless you need to get that deep into the motor beforehand its not worth all that work.
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