Does anyone know if my old 6 cylinder will run ok on unleaded without using an additive or will i suffer with valve seat recession?
Does the head fitted to the rover cars (p5 etc) have any harder valve seats and is it a direct replacement?
Will an LPG conversion also need hardened valve seats or will it be ok on the old head?
Thanks in advance
Does the head fitted to the rover cars (p5 etc) have any harder valve seats and is it a direct replacement?
Will an LPG conversion also need hardened valve seats or will it be ok on the old head?
Thanks in advance