Most definitely, if one had to bet on one vs the other. The 5.3….327CI….has a solid track record.
I’ll also take the mechanics advice over the you tube GM engineers. What would one expect them to say?????
The 5.3 is not a 327. Two completely different motors.
5.3 3.78" bore x 3.62" stroke
327 Chevy: 4" bore x 3.25" stroke.
Anyhow, the 327 in stock form, hits 6500-7000 rpms in second and third gear, completely loaded down with 4000 lbs of green firewood. Smoothest, quickest reving small block I've ever owned.
