i want to know wats better to boost a b20 or ls block wats the ups and downs?

 

ls block has thicker cylinder walls, but if you have the money, sleeve the b20 and use it. bigger displacement is always better

 

thanks im short on money, that thing is i threw out a rod on my ls block yesterday and they told me b20 was better i was mm i dont think so, i noe b20 is better for all motor...

 

both will hold up fine, it's all in the tune.

 

and the funny thing is i put new bearings on my ls and arps and it wen kaboom i have a big hole in block

 

what did u use for tighting up the arp rod bolts?

 

torque wrench

 

u need to use the correct tool, u need to use a rod bolt stretch gauge.
with the torque wrench u will not know how far u have stretch the rod bolts, they will snap on high rpm's, ands thats how u end up with a hole on ur block.

 

This is BS, do not post miss information!! They are the same thickness!!!!

To answer the OP`s question, the LS block is the better option for boost, but only becaue the cylinder walls are mounted slightly different to the block

Here`s a shot of how `thin`LOL the B20 walls are

 

thanks looks pretty thick.

 

Your welcome.....yeah, you have to be careful, some people just make up answers are here with no idea what they are talking about

 

yeah bro my setup is pretty good i was gettin full boost at 5rpm with a t70 turbo but yesterday the rod came out like the arp bolt snap.

 

damn!! 5 rpm? u getting full boost below idle? no wonder ur arp rod bolts snapped.

 

lmao na im talkin bout 5000rpm lol

 

I'm at full boost at 3RPMS..!!! lmao..

 

3 rpms?!? I feel like the car would stall...

 

WHOA WHOA, chill dude. Sorry for the miss info, I figured the difference between 84mm and 81mm would equal thinner walls. Get your panties out of that wad....

 

he is not, just saying people go on saying stuff like that and more people believe it and they say and it keeps on spreading. either way b20 or ls both are fun on boost well any honda motor is

 

thanks

 

Maybe the b20's cylinder walls aren't thinner but i do know that they are not made as strong as all other b series. Thats why they always crack if not built. Ask any good tuner

 

LS block over B20

b20 ahs very thing sleeves

you are looking at the wrong thing. its not that entire thickness. the sleeves are only 1-2mm thick

B18 LS and B20 have everything the same, except overbore

most LS blocks take more turbo power then B20

like others siad, its all in teh tune, both motors are weak and only support around 250whp reliabily. 300whp+ is for the VTEC blocks