5.7 vs 6.1 cylinder heads?
#3
Yes they will interchange. The 6.1 has bigger valves and flow more. They also have a smaller chamber so they increase compression on a 5.7. I wouldn't run the stock 6.1 heads on a stock 5.7 without an aftermarket controller to reduce timing. The HEMI Shop has a "big chamber" CNC head that is great for use on the 5.7.
#10
Originally Posted by 1dirtyZ
any flow numbers for both?
http://www.thehemi.com/61L/flow.php