- Apr 18, 2018
- My XLR/V(s)
- 2008 Crystal Red XLR-V
So, I’m down the rabbit hole on this. My buddy has an ‘06 STS-V with the same engine as my V, but…. It’s rated for more horsepower. Has anyone sorted out the story? Was it a marketing thing? Component differences? Yesterday, I spoke with a Northstar engineer, but he’d left GM before the LC3 came about and didn’t have a good idea.
Powertrain Summary: 2008 Northstar 4.4L V8 SC ( LC3 ) Type: Premium V 4.4L SC V-8 Displacement: 4371cc ( 267 ci ) Engine Orientation: L=Longitudinal T=Transverse L Compression ratio: 9.0:1 Valve co…