oneHemi37: Yep, I sure will do that for you. Definitely a big difference between the stock 5.7's (3-piece design) vs the Manley 5.7's (forged 1-piece) I plan on doing the swap later this week/weekend or early next week...just depends on my work schedule. and...no..I haven't cammed the truck.
Red Truck: I am replacing all the stock 5.7 intake & exhaust springs with 6.1 Exhaust springs per the instruction I have received here on the forum and this thread, due to their strength. No, the int/exh lengths are different per the lengths I posted above. These are the lengths shown on the Manley label, assuming that they are the same as the stock 5.7's. As oneHemi stated, if I were to install the 6.1 rods, I'd be in trouble due to them being longer than the 5.7. The 6.1's are slightly longer, I posted their lengths last page back.