Hello, i have a 92 camaro heritage rs 305 tbi sitting outside sleeping as im working on this new 92 camaro z28 L98 TPI block,

Every gasket were glued on the intake mainfold, and it was hell to come off (any suggestion?) i tried gasket remover !!! even the foaming action was cool
and here for the very random (?)... after the intake/plenum/runners came out of the mold, were they already in that color? or did they paint in an "aluminum color" them before assembling? ive been cleaning the intake for 11 hours so far, gotta say looks great before i got them but theres a little spots everywhere so wondered how to remove them...

 

anybody know if its just the way it came out or painted before assembly.. thanks

 

pretty sure youre just cleaning straight aluminum no paint

 

Thanks.. Any best way to remove those stains, theres some discolorations, or am i basically stuck w/ it

 

have you tried a good degreaser? oven cleaner works well but dont leave it on to long.

 

yes i tried various of degreasers but doesnt completely do the work, ill try the oven cleaner.. thanks!