Revell's '99 Cobra has an N/A 4.6L DOHC, Revell F-150 Lightning has a blown 5.4L SOHC, and the PL Ford GT has a Blown 5.4L SOHC with a transaxle, even though it should have DOHC heads. I think the Revell Mustang Mach III concept car had a blown 4.6L DOHC as well.