When comparing The 2 engines, it is evident which the B16A2 engine is the more effective of The 2. The B16A2 engine provides 35 far more horsepower and 4 lb?ft additional torque compared to B16A1 engine.Having said that, it’s a toss-up as as to whether to work with an OEM B20 non-VTEC gasket or an aftermarket VTEC gasket. People have noticed achi