Rattle can paint quality has gone to crap over the years and it wont hold a shine well for over a year now IMHO. Real auto paint is the only way to go if you want a shine that will last.

How long does one of those Preval canisters last? Could you paint and engine with 1, 2 3 or 4?

Take care,
Rick
68 Coronet R/T 440 & 68 Charger 528 Hemi,and 5 Challengers! 6 cyl, 318, 360, 383, 451