Hello all,

Trying to figure out if the L15B1 found in our NA GK5s has traditional big lobe VTEC or just the valve deactivation economy VTEC?

Doing a little searching but I keep getting conflicting answers and I can't find anything official just old forum posts.

Anyone with first hand experience know what these come equipped with?

 

I think it is same with ge slightly open valves with swirl fuel air mixture method driving around 3000 rpm and fully opened valves after 3500 rpm