Description
– 226 CFM out of the box compared to 180CFM for oem heads
-1.5″ intake and exhaust valves
-Improved higher flow ports compared to stock.
-Intake shelf still on
-Fully assembled with our 103# springs
-Threaded freeze plugs under valve cover
-.0065″ seat press for high temp applications
-Fire ring gasket and machining extra
On our recent dyno test we ran 1245hp on a 6.7l with a single s400
