Looks like Chevy performance has been listening to all the magazine articles about the performance potential of their little 5.3. They released this crate motor with a really good price. Hot Rod did a test this month and ran 12's at 105mph with one of these in a 69 Chevelle. Great bargain, just thought I'd pass it on. http://www.crateenginedepot.com/stor...-P1804C53.aspx