The blacktop has lighter internals which are also weaker, but it is a bit more quickly. No damage if you're not undertaking any big mods, but any pressured induction and you will be needing to uprate the blacktops internals. I had been gonna return the engine, but last but not https://josuepxzaz.mpeblog.com/49728550/not-known-facts-about-4age-engine-for-sale