Originally Posted by
88_Hatchy
You are better off using a B18C crank in a B18C block. The 0.2 bump in compression and very slight torque increase are not worth the trade offs. With the LS crank you have to either modify the rods or get after market ones. Even if you get ARP bolts and have the shot-peened, the big end will still oval at high revs. A good set of after market rods cost more than a set of Eagle rods. You will also most likely have to block off the oil squirters, which is taking away from the advantages of using a B18C block in the fist place.
have you ever done it? the rods do not need to be modified and they dont oval at high rpm, there is no reason they would as long as you have them resized BEFORE you build the motor. i have done this setup and it runs well and is reliable. i eliminated the oil squirters and had no issues. make sure you use an ls crank with ls rods and ls/b20 bearings. i hate when people down talk about shit they have never done. if you have any questions on this build shared_pm me and i will answer them for u.