Quote: You can bolt the eagles on an earlier 5.7 block as an upgrade, or no?
If you bought one of the 6.1 liter shortblocks you could bolt them on that and go, or?
yes you can. Think of it this way the 5.7 up to 2008 is like the 318 and the 6.1 is like the 360. you can swap them back and forth but you would have to open the intake port a bit for the increase size of the 6.1 intake. The new 5.7 eagle is the same size as the 6.1 intake port size. you can bolt on these heads and go. as for bolting on these heads to a stock 5.7 I don't know if you would see any gain. The stock 5.7 head work extremely well. Once I receive my junkyard 5.7 I want to find this out. One thing, the new head has a different exhaust port don't know if the stock logs will work.
