A comment about the Boss and Shelby engines using 5w 50 wt as opposed to 5w 20wt in the Coyote. You have to remember that both these other engines have forged pistons as opposed to cast in the Coyote, so they run higher wall clearances because they fit looser than cast pistons until thermal expansion takes place on warm up. Also, im willing to bet that because the Boss and Shelby are more race oriented, they run higher clearances on the rod and main bearings. Maybe only sightly,but race engines run more clearance on most moving parts to free up friction.
2011 GT. Grabber Blue. Procharged. 3:73 manual.Billit LCA's. Corsa Extremes. GT 500 wheels. Racemaster DR's. T-56 Tremec. Dynotech DS . Centerforce DF. American Racing headers/high flow cats 560 rwhp.Donny Walsh tuned
2012 Pony Package. Race Red.3:31 automatic.BBK longtubes and catted X.FRPP Sport axlebacks. BBK throttle body. Dynotech DS. Brembo wheels and tires. Strut tower brace. Airraid CAI. Bama tuned.