Can someone enlighten me on the differences beteween the W-Body And the H-Body L67?

I found a motor out of a Buick Regal for Franky and I know there are differences but not exactly what they are.

Thanks

Just some observations based on the 2000 W-Body L67 I ended up with: Motor mounts, A/C mounting bracket, coil pack mounting bracket and tensioner, accessory drive mounting bolts/studs, and the rear exhaust manifold. All of which are parts bolted to the long block and easily replaced with the parts off your original motor during the install.

John..it'll be as Curt is saying.

Strip it to a long block. Leave on the waterpump, timing cover. Change all the brackets, and the flexplate. Then it'* back in. I'd suggest swapping the lower intake gaskets while it'* out. Makes it about 100 times easier to change springs/valve cover gaskets etc etc. (I'm putting my next set on with velcro).

If you need any tips or tricks on anything..holler...I can recite bolts sizes and order of operation off the top of my head these days.