I know this is probably going to sound really stupid but i have to ask, is there a difference in using an rs or ls head? i don't think so but i need to make sure because i am about to buy an rs and i was going to go rs/vtec and just needed to make sure that it would work. I think it will and i have researched a lot of different things but nobody says anything about the rs. Any help would be appreciated, thanks.

 

Yeah there is a difference in using an rs or ls head. WALANG BTEC DOOD!!! NO VTEC BRO

 

the motor people refer to when they say the "LS motor" is the b18a/b. RS trim packages, along with GS and SE's came with these motors. the b18a being the 90-93 motor and the b18b being the 94+. it is commonly refered to as the LS motor because thats easier to say than b18b

 

Its not a stupid question, the LS/GS/RS motor has a non vtec 1.8 litre motor.Welcome to Honda Tech too btw,search is your best friend here