I've been trying to find the stock cam lift and duration specs for my '87 prelude si. I looked in the factory Honda shop manual, but it only references lobe height, ect.

I called a few Honda dealerships, but that info. does not come up on their computer and they verified that it's not in the shop manual (just in case I missed something). Where can I obtain this information quickly?

Thanks!

 

That is going to be a tough find as Honda doesn't have these specs readily available. Even Honda technical drawings of the parts do not specify duration and such only dimensions are given. Overall lobe height minus the base circle will give roughly the "lift" of the cam. Your best bet is to send the cam to someone with a Cam Doctor and have it all measured. Oscar Jackson might have the specs as I think Jackson Racing made cams for the early Preludes. Another source might be Web Cam or Mega Cycle

Good luck!