My opinion
If you wanna be different, the 292 in the nova sure is a cool idea.
If you want mpg and like the LS1 idea, not the LS1 price tag, a cheaper alternative would be a GM 4.8 or 5.3, same engine family, bone stock are known for respectable mpg in fullsize trucks and the 5.3 responds real well to simple modifications. (LS1tech.com) Its crazy, you have these production cars (trans ams, corvettes) running aroung with LS1 engines, making 300+hp getting 30+mpg highway, who said you couldnt have it both ways?
There are a few things to consider when installing the LS engine in the nova but as youd guess, its well documented, like the old SBC's.
Have fun.
