Hey everyone,Ive been searching trying to figure out how strong a b20 block is to a ls block when going all motor,Have heard alot tht b20b blocks are not ver stron but then i hear that they are just as strong as the ls block,Im planning to build a all motor stup and was wondering if the b20b block would be just fi or if i should stick to a ls block.

The b20 will provide more torque b/c it has greater displacement but the ls will also yield good torque as well. As for strength, it depends on how much power you want to make. For a 200whp build all motor you should be fine using a b20.
When you start to go 330whp or more high compression n/a or boost you should get the block sleeved / cnc block guard. That's my 2 cents for a RELIABLE everyday DD.

Yeah,Im not panning to make to much around 175-190ish ,Just wanna make a orque monster for a light car,Hmotorsonline.com has the b20b for 550 plus shipping so thats kinda my plan.Then build it for good torqe and make a killer tranny and im set.

there is a post below this one that is not too old that i commented on..check that one out