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Forgive my ignorance, but what specifically is the "stock bottom end"? I see this discussed on various boards in relation to drag racing, but never have I seen what specifically makes up the bottom end.
Is it the transmission, output shaft, differential???
I also see reference that stock is a 10 bolt, and recommendation is a 12 bolt.
Can someone please explain this to me so I can have a clue??!!
Stock bottom end is the factory engine block and rotating assembly including the crank, piston rods and pistons, etc. The top end includes heads, valves, intake, etc.
A 12-bolt rear end is a heavy-duty diff. In referring to LS1's, those typically are used on f-bodies.
Here's a pic of his C5R short block a forum member sent me. (Thanks, Rich)