Originally Posted By Triple Threat
Originally Posted By ric3xrt
Good combo, 6.1 Intake will be fine, Curious question for you, do you have sonic #s after the 4.08 Bore? the 05 5.7 I had bored out to 4.09 cracked #1 thrust side after 5k mile(street miles).



Did you sonic check yours? My 04 5.7 block has a min thickness of .176 @ 3.93 bore. I wouldn't want to take it to 4.090, but 4.055 would probably be alright to still be over .100 everywhere.


Block check @ 3.917 had .207 before bore .120 after Bore in that spot,(middle depth #1)
Thinnest spot on that block after bore was #7 non Thrust @.101 middle depth