Yeah, for sure the older V8s were a wee bit thirsty, but the new ones seem to be pretty good. They’re not a Prius, but they don’t eat the gas like they used to. The cost increase sometimes is because you have to put premium in for some of the V8s, like my LT1. I don’t know about the 5.3s, I imagine the LS1 wants premium.
lol, I believe the headlight wasn’t added to show some more of the construction, and I don’t think it was finished in that picture. I don’t see any bolts between the turbo and the manifolds. Other pictures show both lights in =p. I can post the link to other pics if people want them, I just need to dig it up again.