I installed a larger aluminum radiator when I did my cam swap and it's too big for the cover to sit flush. The only solution I see is to cut but I wanted to see/hear what others have done first.

 

I just trimmed the rubber isolaters some with a dremal and that allowed the stock top cover to then sit flush as stock

 

Get a piece of flat steel and bend it to your liking and paint it black. I've seen it done several times and it looks great.

 

thanks I'll give it a shot

 

I'd do this instead. Keep as many of the stock pieces intact as much as possible. JMHO.

 

you could just take off the top isolators and see how the stock cover fits. It may also need some trimming but mine didn't.

If you don't want to trim your stock isolators you could just use some 3/8" rubber hose and slit it the size you need. That likely is enough of a isolator to allow the cover to sit flush

 

I shopped around for an aftermarket cover but they all looked too nice for my engine bay. They wouldn't have gone with my worn-looking n dirty theme. I went ahead and trimmed the stocker, there were bunch of used covers for sale around the net so I wasn't too worried about screwing up. Luckily it turned out pretty good, thanks!