I have a LT1 6 speed in my 2nd Gen...I'll say the LT1 is a good motor but there are things about it that are not good...the biggest thing for me is the distributor is located right under the water pump...not a good idea...also performance parts are a little harder to find and a tad bit more $$...I'm going to change mine out for a LS2 for sure when I save the cash...mostly because parts are cheaper and you can make 500hp with a head, cam package for a good price compared to trying to make 500 with a LT1...