dont mean to butt in haha, says in this lil thread what engines where in what. just thought might help :D Following on from the E21, the E30 was fitted with M10 straight-4 and M20 straight-6 engines. The 316 used a 1766 cc M10 fed by a carburetor and producing only 66 kW (90 PS; 89 hp), but this allowed BMW to offer a cheap, entry-level car in the range. The 318i had the same M10 engine, but with Jetronic fuel injection, pushing power to 77 kW (105 PS; 103 hp) and improving fuel economy. Finally, the 320i (2.0 L M20 with 92 kW (125 PS; 123 hp)) and 323i (2.3 L M20 with 105 kW (143 PS; 141 hp)) completed the range. Later, in 1985, a 2.5 L version of the M20 boosted the power of the top model to 125 kW (170 PS; 168 hp), replacing the old 323i. The 325ix (All Wheel Drive model) had a 2.5 liter M20 with 125 kW (170 PS; 168 hp) (same as the 325i). just had quick look and think yours has the M20 engine 316 = m10 318 = m10 320 = m20 323 = m20