I just read on the ford truck forum a post from a mustang ownwer crying about the crappy mod motors us mustang ownwers have to endure with our small displacement. While GM still has the LS motors 2 valve cam in block making 400 hp. That sorta ****ed me off. There are mod motors running in the 7's, guy's are putting mod motors in thier older stangs. Getting 300 hp out of a 281 cid engine isn't shabby. Back in the musscle car era, the boss 302 with cleveland heads made 290 hp, a hipo 289 made 270, so 300 out of a 281 isn't bad. With some bolton's you can get around 360 hp. As far has more cubes, why isn't there more research into using the 5.4 blocks in our cars? Thats a bump to 330 cid with just the block. It seems with some parts swapping we could easily do a 400-430 hp all motor stang. It seems that swapping in a 5.4 block would be cheaper than a stroker kit or FI. they have been making the 5.4 since 97, there's plenty around. Why isn't there more R&D into using the 5.4 blocks for us common guy's, we could keep our 4.6 heads and what have you, it vseems like it would be a low budget stroker, what I'm I missing?