Hi guys thanks for the replies forgot to mention I'm in Canada so my money doesn't go as far up here. My plan is probaby to use the 360 I have currently if it' cheaper and build it but is it even possible to build a stroker for 5k ? What would be needed to make the 383 make 400 to 450hp would it be cheaper to do that way and sell mine as a running motor that way? I need my duster to beat my buddies 68 chevelle that has a built 383 with about 475hp in it. Thanks again for the help