Both Are norrow angle Dohc, But main difference Between A 5efe and 5efhe is H, High Com. pression engine Of toyta Are marked with H. and As far as i know This engine 5efhe is the only engine having so high compression ratio in toyota Family, and the engine Comes in a Siera. Stock 5efhe has 9.8:1 Ratio and 5efe is 9.4:1 ratio i guess, m not sure So please correct me if i m wrong.