why do people use a 4.6L explorer engine for a swap instead of a 4.6L DOHC lincoln mark VIII. is the lincoln swap more difficult? i thought the lincoln put out more HP. i can get a 93 mark VIII engine and tranny for $300.00 with 60,000 miles. i already got the rear end and aluminum driveshaft from it. would this engine and tranny be worthwhile?