Any tips on removing a header that doesnt want to come off?
I got the 4 nuts/bolts off with minimal effort (thanks to some pb blaster). But now the header won't budge. Tried banging on it and spraying some more pb blaster. Any other tips?

 

get a prybar and pry it a bit, gasket is probably sticking, be careful where you pry though, dont wanna break anything

 

Hit it with a dead blow hammer a few times to break the seal. Squirt a bit of penetrating oil between the studs and flange.

 

thanks for the suggestions. i'll try that.