All 4AGE engines hold the exact same exhaust port position and just the 20v engine incorporates a big difference With all the mounting face. That variance getting that on the 20v the two outer holes are put even further outwards that its 16V equivalent. Along with the 20v engines easily https://4ageforsale37960.blog2freedom.com/31342519/how-much-you-need-to-expect-you-ll-pay-for-a-good-4age-for-sale