Originally Posted by
Hurstmeister
They didnt.. the first junkyard motor he pictured is an early (97 - 01) non PI F150/E150 motor. Look at the ignition modules placement. All 99+ PI engines have COPs. No ignition modules. All 96+ 4.6 Mustangs have electric fans. The second picture is a 4.6 with 99/00 Windsor PI heads. (Valve covers give it away).
So I have no idea why he says "before" and "after" ?
Hurst
Why does eveyone assume the OP has a mustang? There is a crown Vic in his avatar and his s/n would suggest likewise. If i remember correctly, crown vics were still NPI in 2001 and they still used mechanical fans.