I had the D15b motor in my hatch and it was a very good motor.... So i would go with the SOHC... If you put a 8lb. flywheel and stage2 clutch, it would be faster.... I had a buddy that had a stock jdm ZC motor in a eg hatch and I would just walk all over him and all i had done to my d15b is a 8lb. flywheel and stage2 clutch...