408ci LS Long Block for NA

Is your project ready for its new LS? We have a couple of 408ci, hydraulic-roller long blocks available for sale as-shown or get one fully-finished and turn-key optioned out the way you want.  Our standard build 408 puts out 720 hp naturally aspirated.  No supercharger or crazy cam needed. We get these results from our precision CNC machining, parts selection and tune. If you watch the videos in our YouTube Machining Playlist, you'll better understand how we put up such big numbers on this engine. The short block starts with a seasoned GM 6.0L block that we have digitally remastered to better than new condition. The Callies 8-counterweight stroker crank gives us additional displacement, reduced harmonics and increased stiffness for longer life. The rotating assembly is completed with forged Callies Compstar Extreme rods and Diamond R Series pistons. We are exclusive with COMP Cams who makes all our custom grinds.  The valve train is stabilized with a COMP trunnion set.  That brings us