All 4AGE engines possess the identical exhaust port situation and only the 20v engine contains a change Along with the mounting face. That distinction getting that about the 20v The 2 outer holes are location further outwards that its 16V equivalent. With all the 20v engines quickly gaining reputation from https://4age-engine-sale02129.mdkblog.com/37074058/5-essential-elements-for-blacktop-4age