[77 Canamman]

You couldn't give me an Egoboost. I have a few personal experiences with them, and they are not flattering. Two of them had stretched timing chains, and the other had terrible smoking issues related to the turbo seals and intercooler-all under 30k miles. When they are new and under warranty, they might be ok, and produce good power, but they are not for me.

As much as the 6.0 Vortec has been derided here, they are a better performer than the 6.4 Hemi. Now that's a flaming turd of an engine.

My 2017 5.3 L83 LT1 series GEN V/6L80 has been stellar in both power and economy. I have performed a tune, upgraded the exhaust and intake systems, and added the 6.2 intake and TB. Nothing like 23-24 MPG's on a trip at 75-80 mph, and low 14 sec quarter mile times in a close to 6000 pound truck. Towing the Bandit nets 13 MPG on the road. I like the 6.2, but the 8 speed tranny is not as refined as the 6, and you can't tune that trans. With that said, I would NEVER put it in a vintage Pontiac.