ZensokuEK

which one would make more power and still be durable at the same time

littlebluecrx

Stock bore ls will be more durable, than stock bore b20. The b20 sleeves dont like boost or a lot of nitrous. I would sleeve the ls, and use b20 bore pistons, and a b20 headgasket, then you have a sleeved b20. Should be good to go then. Jason


[Modified by littlebluecrx, 1:59 PM 2/18/2003]

JCushing

regardless of reliability the b20 will make more power and torque than the b18.. its the same motor just bigger bore...

now as far as reliability if you keep it safe and tuned well they should both be perfectly fine at 5-9 psi

now b20 sleeves have been known to crack more than the b18 though....

basically you have to look at your power goals... if you dont have the motor yet you could prolly buy a cheap b18 and sleeve it for only a little more than a b20 but the rest of the machine work you need to go with the sleeving (new pistons/rods bearing machine work) will add up quick.

if you want to go with a stock motor and not have to sink money into it and you can keep it safe and not be stupid then the b20 will be better but t will be less forgiving