News:
I searched for a long time to find mine. And now I've been waiting 7 months for a JW ultrabell. If I don't have something by next weekmy 518 will be up for sale. Right now it is a stripped down core that my builder has been waiting to finish, so it mightgo for cheap.
CudaJas how many horse power is in motor. I was told they will not hold over about 475hp to 500hp when I had mine rebuild. The shop that did mine cuts the original bell housing off and bolts on the one to fit your car. Mine is a 440 with 525HP and he said it would work fine on lower HP motors but not the high HP motors. So if you have a real high HP small block say 475HP to 500HP it might blow it up too.
If built correctly there are documented cases of holding 600 hp easily. Just not in a stock rebuild.