Why the tbss throttle body size matters for your swap
If you are digging into an LS swap or just trying to squeeze some extra life out of your truck engine, figuring out the tbss throttle body size is likely high on your to-do list. It's one of those topics that comes up constantly in forums and Facebook groups because the Trailblazer SS (TBSS) intake manifold is arguably the best "bang for your buck" upgrade you can find for a cathedral-port LS engine. But before you go out and buy a bunch of parts, you need to know exactly what you're working with so you don't end up with a pile of mismatched hardware. ...