Just ran across this write up. http://www.hotrod.com/techarticles/engine/113_0307_454/index.html I've always been a big fan of the 454. Aparently I'm a big fan of the gas pump as well. :lol: I'd be concerned that even though the author is impressed with the 454 SB, it wouldn't live up to real world usage. I'm sure that short of production limitations at the time, that there was a reason why the 454 has always been built into a Big block. It would be interesting to see one of these put through it's paces, and see how it fares!! Otherwise it's got some pretty impressive HP/Torque numbers Would anybody here be willing to put one in there 'burban?