hi ime new to this forum and ime after a little bit of help,my car at the moment is running a s2 escort engine and its knocking really bad and ive been offered a new engine for my car but its out of a s1 escort,is there any diffrence between the two engines like where the sensors go on the block and if i will be able to still use my s2 engine managment or will i need it of a s1

any help will be really good

thanks
rob