anyone know of any good site to get internal componets for a 427 BBC tall deck, thanks

 

Summit, Jegs to name a couple. Just about any performance dealer will have parts for them. What are you after?

The bore is the same as a 454. You could stick a 454 crank into it and make a 454. You'll need new con rods that are .400" longer and standard 454 pistons.

If you choose to keep it a 427 and want to use automotive 427 pistons you'll still need the longer con rods.

To use a standard intake manifold you need special spacer plates or else you need to buy tall deck intakes.

You could also go exotic. Bore it out .125" (427T blocks can go out that far). Put in a 4.125" stroker crank. Use 6.485" con rods (.350" longer than stock) and you can make a 496.

All the pushrods are also .400" longer than short deck BBC.

The reason for the taller deck on the truck blocks is that the pistons have an extra compression ring that makes the cylinders .400" longer.