GT HOME THE DIARY   648 new SEARCH TAGS GUESTBOOK EMAIL US SLOWCARFAST.COM	THE MG older entry 100 of 648 (648 new) | oldest first show multiple entries | show newest first newer December 8, 2008 - The complete engine. No, not mine. This is a 480 hp crate LS3 with a hot cam from GM Performance Parts. Yes, 480 hp. The Miata that's getting this is going to have more than 50% more power than our little MG. Yowza. tags: engine older entry 100 of 648 (648 new) | oldest first show multiple entries | show newest first newer