I'm playing with my engine analyzer and I was wondering if you guys could give me some good specs on the 5.3L b/c I am playing with a few different combos and I was to build an engine that is as close to the exact 5.3L specs as possible. Can you all give me some info such as intake flow rating, exhaust rating, head cfm rating, valve sizes, intake runner lenght, port size, etc. All that info!

Thanks for any help,
-Derek

 

190/191 .466/.457-114 stock cam specs.
Standard OEM 2 ¼” Inlet/Outlet 138-152 CFM
Standard OEM 2 ½” Inlet/Outlet 161-197 CFM
All the info i have sorry