i have a 88 camaro with an old tired 383 stroker. want to update to a more modern motor thinking lq4 or lq9 with l92 heads and ls3 intake. going iron block for strenght and price reasons. what 6.0 liter out of a silverado or sierra should i go with. going to have my wifes uncle build me a bullet proof 4l80e to go behind it. looking to make between 500-650hp at the wheels. it is going to be a street car that i drive to strip to run. thanks for all tips, advice, and help.