There heavier than a 350 but there good engines to use if you want diffrent, they will draw attention and if you decide to sell the car down the road, it will go up in value each year because it's a HEMI, with the new so called HEMI Dodge trucks and cars, the popularity of anything HEMI will increse as will the price because of that. Go to www.speedwaymotors.com and look at there HEMI section, lots of hop up parts for them. If I had 1 I'd be building it up.