Hey Everyone.

Im looking for some help here.

Beside the obvious differences of the iron block etc.

Whats the differences between these engines?

Is the bore the same? Stroke different? Heads the same?

Will parts from an LS1/6 transfer over?

Say, If it were a stroke difference, could i put an LS1 crank into the 5.3 to make a 5.7 engine? Are the heads the same? Say, could i bolt on a set of LS6 heads? Cams work the same way? Could i put in an LS6 Hotcam? Intakes work the same? Could i put on an LS6 intake?

I understand the oil pans are different and front accessorys are different, but is the block the same other then the material?

All Help EXTREMELY Appreciated.

YES, i DID do a search, but it never quite answered all my questions.

Thanks,

Sheldon