Prepping an Engine for Paint

I use lacquer thinner in a spray gun before paint then take my heat gun and worm everything up good ( gets the dampness out) and sometimes heat the paint can.and most of the time I put 2 or 3 coats of clear on it..and wen I use mopar orange I put two coats of Allis chamers orange on first or sometimes just use the Allis chamers orange its hard to tell them apart......Artie