Originally Posted by WiseGuyOnCouch

So here's what i'm trying to ask first is what would the final compression ratio be on an ls/vtec with a b16 vtec head and ls crank, ls rods, and ctr pistons. Trying to figure out if pump gas(93 octane) is possible.

Also trying to make sure you can put b18 cranks and rods in b16 block, pretty sure you can cuz the difference in displacement is in the stroke correct?

What would b18b1 with ctr pistons be in compression ratio also(for if pump gas isn't really possible on above set up)